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Air Handling UnitsFor Radiant Systems

We have been working in an ideal climate for thirty years.

A climate that has brought us to a position of

leadership in Italy in the field of radiant heat-

ing and cooling. RDZ was the first company

to receive the management system quality

certification (today UNI EN ISO 9001:2008).

RDZ has been a quality-oriented company

since its very beginning, using the finest

materials, developing new solutions, constantly

providing excellent service. And also by

creating a positive climate in the company to

promote the exchange of ideas and stimulate

cooperation for constant improvement.

1

CONTENTS

Introduction

Residential applications without air renewal

Dehumidifier RNW 204-I

Dehumidifier RNW 204-E

Dehumidifier RNW 404-CS




Residential applications with air renewal

Heat recovery unit HR 140

Primary air handling unit UAP 130-C

Unit Comfort UC 300-M

Unit Comfort UC 300-MHE

Air distribution system

Commercial applications with air renewal

Dehumidifier DA 700

Heat recovery unit SR 700

Dehumidifier DA 1000


Dehumidifier DA 2000


Unit Comfort UC 700/1000/2000

Page

246789101112141619202426282930313233

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34

Air handling units

2

Modern, more and more hermetical buildings, do not ensure suitable air exchange. In order to guarantee health, comfort and to maintain the building value it is necessary to include ventilation systems for air renewal and humidity control.

RDZ solution consists in specific devices defined as dehumidifiers. These are refrigeration units with hydronic coils that thermodynamically treat the air. The air passes through these dehumidifiers, where it is filtered, cooled, further cooled and dehumidified, heated and then post-cooled. The air which is taken in at a certain temperature and with a high humidity value, is thus sent back into a strongly dehumidified room but at the same starting temperature.

The combination among a dehumidifier, a properly dimensioned and constructed heat recovery unit and a specific ventilation system creates something which is very similar to the AHU (Air Handling Unit). Yet, this special combination implies additional functions such as dehumidification, renewal, free-cooling, thermo-ventilation and the integration of sensible heat. These functions are obtained in a very simple way by using both heating and cooling energy with minimum consumption. That is why these units represent the ideal complementary element of a radiant installation.

Air Handling and Radiant Heating and Cooling Systems

3

The Comfortable Climate All Year Round

Comfort also means air quality: fresh air, rich in oxygen, taken in from outside,

filtered and dehumidified. RDZ offers a complete range of units, which can be

successfully used in combination with radiant systems for air renewal and for

efficient control over summer hygrometric conditions. There are various models

available, depending on their use in residential or commercial applications:

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Small dehumidifiers for residential applications (RNW) recirculating room air and dehumidify it during summer

Small units for residential applications (UAP) for primary air control and air handling during summer

Air handling units for residential applications with air renewal and heat recovery (Unit Comfort).

Dehumidifiers for commercial applications (DA).

Heat recovery units for commercial applications (SR).

Handling units with air renewal and heat recovery for commercial applications (Unit Comfort).

Air handling units

4

Residential Application without Air Renewal

False ceiling (supply plenum)


Air intake duct

Air vents

Electronic thermohumidistat

Air to water heat pump

Kit Easy-Clima Duplex

Cover radiant underfloor system

Dehumidifier RNW 404-CS installed in a house

The picture shows a house with a radiant underfloor heating/cooling system and RNW 404-CS dehumidifier with air intake duct installed into the false ceiling in the passage (functioning as supply plenum). The dehumidifier recirculates the air within the room and dehumidifies it in summer. The process consists in filtration, cooling, further cooling together with dehumidification, heating and subsequent post-cooling. In this way only the humidity level is reduced, and neutral air is given back into the room. RNW 404 and RNW 411 dehumidifiers, in combination with HR 140 heat recovery unit, make it possible to renew the air in both summer and winter.

5

RNW Dehumidifiers for Relative Humidity Control

in Radiant Cooling SystemsRDZ radiant systems guarantee maximum summer cooling performance

when they are combined with suitable air dehumidification to maintain room

comfort and eliminate the risk of condensation. That is why RDZ offers a

complete range of machines, called RNW dehumidifiers, specific for radiant

systems and available in different models according to actual requirements.

Every machine has a refrigeration unit with two additional heat exchangers,

exploiting the availability of the cold water (15-18 °C) that is used in the

radiant panels. The pre-condenser coil unit, situated immediately before the

evaporator, lowers the air temperature, thus reducing the sensible heat on

the evaporator coil; the post-condenser coil, positioned after the condenser,

reduces the air temperature before giving it back into the room. This process

produces dehumidified air at the same temperature as the one in the room.

As a result, RNW dehumidifiers basically control “latent heat”. This system

also ensures higher efficiency from the chiller, because it can provide the

radiant panels with water at a higher temperature than the one which is

usually necessary for the dehumidification.

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Room comfort during summer.

Dehumidification and ventilation functions.

Sensible heat integration (RNW 411 / 508 / 600).

Summer and winter air renewal (RNW 404 / 411 in combination with heat recovery unit HR 140).

No condensation risk.

Wide range of models.

Installation versatility: Embedded, wall, ceiling versions.

Silent functioning.

Compact solutions.

6

Air handling units

Dehumidifier RNW 204-I Code 7040010

RNW 204-I dehumidifier is used to control room relative humidity in radiant underfloor, ceiling and wall cooling systems. It is a complete refrigeration unit, equipped with pre- and post-condenser coils fed by the water coming from the radiant panels. It has a zinc-plated sheet metal casing and can be embedded into the wall. It is provided with suitable casing with holes for electrical and plumbing connections and a front panel made of white MDF, which

ensures the passage of the air through an anodized aluminium grill.It includes a 3 speed direct coupled centrifugal ventilation fan and a connection box for power supply with PCB. This is a very compact unit, which is particularly noiseless and

therefore suitable for residential applications.

Specifications:

Power consumption 340 WSupply voltage 230 V – 50Hz Nominal air flow 200 m3/hWater flow at 15 °C 240 L/hDehumidification capacity 24 L/24h (26°C - RH 65%)Refrigerant R134a 260 gSize lxhxd 760x619x207 mm

(front panel excluded)Weight 45 Kg

> Embedded wall installation.> Residential application (80 m2 approx).

> Ventilation function.> Dehumidification function.

Features RNW 204-I

207 mm

760 mm

619

7

Dehumidifier RNW 204-E Code 7040028

RNW 204-E dehumidifier is used to control room relative humidity in radiant underfloor, ceiling and wall cooling systems. It is a complete refrigeration unit, equipped with pre- and post-condenser coils fed by the water coming from the radiant panels. It has an opaque white MDF casing and is installed on the wall.

It includes a 3 speed direct coupled centrifugal ventilation fan and a connection box for power supply with PCB. This is a very compact unit, which is particularly noiseless and therefore suitable for residential applications.

> External wall mounting installation.> Residential application (80 m2 approx).

> Ventilation function.> Dehumidification function.

Features RNW 204-E

Specifications:

Power consumption 340 WSupply voltage 230 V – 50Hz Nominal air flow 200 m3/hWater flow at 15 °C 240 L/hDehumidification capacity 24 L/24h (26 °C - RH 65%)Refrigerant R134a 260 gSize lxhxd 800x650x230 mmWeight 49.6 Kg

230 mm

800 mm

650

8

Air handling units

Dehumidifier RNW 404-CS Code 7040030

RNW 404-CS dehumidifier is used to control room relative humidity in radiant underfloor, ceiling and wall cooling systems. It is a complete refrigeration unit, equipped with pre- and post-condenser coils fed by the water coming from the radiant panels. It has a zinc-plated sheet metal casing and it is horizontally installed into false ceilings.

It includes a 3 speed direct coupled centrifugal ventilation fan and a connection box for power supply with PCB.This is a very compact unit, which is particularly noiseless and therefore suitable for residential applications.

> Horizontal installation into false ceilings.> Residential application (100 m²).> Ventilation function.

> Dehumidification function.> In combination with HR 140 heat recovery unit: summer and winter air renewal function.

Features RNW 404-CS

Specifications:

Power consumption 360 WSupply voltage 230 V - 50HzNominal air flow 220 m3/hWater flow at 15 °C 240 L/hDehumidification capacity 26.6 L/24h (26 °C RH 65%)Refrigerant R134a 240 gSize lxhxd 711x242x546 mmWeight 36 Kg546 mm

711 mm

242

9

Dehumidifier RNW 411 Code 7041400

RNW 411 dehumidifier is used to control room relative humidity in radiant underfloor, ceiling and wall cooling systems. It is a complete refrigeration unit, condensed with water and equipped with pre-condenser coils and water-to-gas heat exchanger, which are fed by one hydronic connection to the water coming from the radiant panels.

It has a zinc-plated sheet metal casing, and it is horizontally installed into false ceilings. It includes a 3 speed direct coupled centrifugal ventilation fan and a connection box for power supply with PCB.This is a very compact unit, which is particularly noiseless and therefore suitable for residential applications.

Features RNW 411

Specifications:

Max. power consumption 370 W Nominal air flow 220 m3/h

Integration air flow 300 m3/hWater flow at 15 °C 240 L/hDehumidification capacity 30.7 L/24h (26 °C RH 65%)Summer sensible heat integration 1200 W

Size (lxhxd) 721x247x605 mmWeight 37 Kg

> Horizontal installation into false ceilings.> Residential application (100 m²).> Ventilation function.> Dehumidification function.

> Summer sensible heat integration.> In combination with HR 140 heat recovery unit: summer and winter air renewal function.

Summer

sensible heat

integration

1200 W

605 mm

721 mm

247

10

Air handling units


RNW 508-CS ductable dehumidifier is used to control room relative humidity in radiant underfloor, ceiling and wall cooling systems in residential and commercial application without air renewal. It has a zinc-plated casing and a stainless steel condensation trap. It includes an alternating compressor which is mounted on suitable rubber anti-vibration supports within a soundproof compartment.

The unit is equipped with pre- and post-condenser coils, separately fed by water, and it can supply further sensible heat. It includes a 3 speed direct coupled centrifugal ventilation fan and a connection box for power supply with PCB.

Specifications:

Max power consumption 500 WSupply voltage 230 V – 50 HzNominal air flow 500 m³/hDehumidification capacity 42.0 L/24h (26 °C - RH 65%)Total head (medium speed) 52 PaRefrigerant (R134a) 300 gSize (lxhxd) 840x290x600 mmWeight 47 kg

> Horizontal installation into false ceilings.> Residential and commercial applications with a small number of people (200 m2 approx).> Ventilation function.

> Dehumidification function.> It can supply additional summer sensible heat.> Ductable solution.

Features RNW 508-CS

additional

sensible heat

600 mm

840 mm

290

11


RNW 600-CS ductable dehumidifier is used to control room relative humidity in radiant underfloor, ceiling and wall cooling systems in residential and commercial application without air renewal. It has a zinc-plated casing and a stainless steel condensation trap. It includes a hermetically sealed rotary vane compressor mounted on rubber anti-vibration supports within a soundproof compartment.

The unit is equipped with pre- and post-condenser coils, separately fed by water, and it can supply further sensible heat. It includes a 3 speed direct coupled centrifugal ventilation fan and a connection box for power supply with PCB.

Features RNW 600-CS > Horizontal installation into false ceilings.> Residential and commercial applications with a small number of people (280 m²).> Ventilation function.

> Dehumidification function. > It can supply additional summer sensible heat.> Ductable solution.

Specifications:

Max power consumption 900 WSupply voltage 230 V – 50 HzAir flow 600 m³/hDehumidification capacity 62.0 L/24h (26 °C - RH 65%)Total head (medium speed) 170 PaRefrigerant (R407c) 700 gSize (lxhxd) 690x349x718 mmWeight 53 kg

additional

sensible heat

718 mm

690 mm

349

Air handling units

12

Residential Application with Air Renewal

Outside air intake

RDZ ModulAir distribution system

Air exhaust (stale air)

Unit ComfortUC 300-M

Unit Comfort UC 300 M - Application in a house

The picture shows a house with a radiant underfloor heating and cooling system combined with Unit Comfort UC 300-M. This air handling unit is installed into the false ceiling of the store room, that is in an area ensuring easy positioning of the intake and exhaust ducts towards an outside wall.

Unit Comfort 300-M is an air handling unit with high heat recovery efficiency. It ensures summer dehumidification with fresh air flow regulation and partial air recirculation.The features of the unit are as follows: • Ventilation with air renewal• Ventilation with air recirculation• Summer dehumidification• Air renewal in “Boost” mode• Integration of winter sensible heat• Integration of summer sensible heat• Air renewal with heat recovery by means of a high-efficiency heat exchanger (~90%) • Timer programming of different air flow rates (“normal” and “economy”).

Room air intake (clean rooms)

Room air intake (clean rooms)Air supply into the room

13

Ductable Units for Renewal and Dehumidification in Houses

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Residential application.

Room comfort and hygiene for all seasons: fresh, clean air.

Controlled air renewal function.

Ventilation function.

Summer dehumidification function.

Summer/winter sensible heat integration function (on demand).

Free-cooling function for intermediate seasons.

No condensation nor mould risk.

Modular and compact models.

In those places where we spend most of our time it is very important for our health to

enjoy fresh, clean air. That is why RDZ offers a range of units for forced and controlled

room air renewal and heat recovery in residential applications, in addition to traditional

dehumidifiers for summer air handling.

RDZ solutions are as follows:

•HR 140 high-efficiency heat recovery unit (~90%) used in combination with RNW

404 and 411 dehumidifiers for summer and winter air renewal.

•UAP 130 primary air handling unit for summer dehumidification, summer and winter

room air renewal with high efficiency (~90%) heat recovery and integration of summer

and winter sensible heat. The special feature of this unit is its modularity and installation

flexibility.

•Unit Comfort 300-M is a single unit designed for ventilation, dehumidification, air

renewal and summer and winter sensible heat integration.

•InadditiontothefunctionsprovidedbyUnitComfort300-M,Unit Comfort 300-MHE

can provide free sensible heat, and it is supplied as standard with four motorized air

dampers which regulate air flows so as to optimise their performance.

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Air handling units

Heat Recovery Unit HR 140 Code 7041140

Air handling unit with high efficiency heat recovery (~90%) with countercurrent flows. It shall be used in combination with RNW 404 and RNW 411 standard dehumidifiers for residential applications. It ensures summer and winter air renewal and summer dehumidification and ventilation.

This is a very compact unit, which is particularly noiseless and therefore suitable for residential applications.

Features HR 140> Horizontal installation into false ceilings.> In combination with RNW 404 and RNW 411 dehumidifiers.> Residential applications (100 m2 approx).

> Summer/winter air renewal with high-efficiency heat recovery (~90%).> Summer dehumidification.> Summer free-cooling with by-pass unit.

Specifications:

Max power consumption 60 WSupply voltage 230 V – 50 Hz Air flow from 80 to 160 m3/hHigh-efficiency heat recovery ~90%Size lxhxd 900x275x980 mmWeight 40 kg

980 mm

275

HR 140

RNW 404-CS

711 mm

242

Adapater Plenum Pa

Kit free-cooling

View of HR 140 heat recovery unit with RNW 404 dehumidifier

In combination

with RNW 404

and RNW 411

900 mm

546 mm

HR 140 Free Cooling

By-pass unit for free-cooling. Optional component with motorized damper diverting the output air for summer free-cooling.

Air Supply Plenum

The air supply plenum is made of a zinc-plated sheet metal, and it is insulated inside. It is used to connect Comfort Unit with air supply round ducts. It can be connected with max. 5 supply round ducts: 2 side ducts Ø 150 mm and 3 central ducts Ø 100 mm. 2 collars of 100 mm and 1 collar of 150 mm are supplied as standard.

15

Adapter Plenum PA

Sheet-metal component for the combination between HR 140 heat recovery unit and RNW 404 or RNW 411 dehumidifiers. The frontside shall be introduced into the filter box of the dehumidifier, while the backside is equipped with a fitting for pipe Ø 150 mm. The plenum includes a suitable grid for air recirculation and suitable damper.

ACCESSORIES for HR 140 UNIT

1

2

3

Code 7041145

Code 7041135

Code 7041148

Main air supply

Air dischargeOutside air intake

Air intake from bathrooms and kitchen

HR 140RNW 404 or

RNW 411

Air recirculation from clean rooms (passage)

HR 140 + Kit Free-cooling + RNW 404-CSHeat recovery operation

Main air supply

Air dischargeOutside air intake


HR 140RNW 404 or

RNW 411

Air recirculation from clean rooms (passage)

HR 140 + Kit Free-cooling + RNW 404-CSFree-cooling operation

HR 140 - Functioning DiagramsThese diagrams represent the operation of HR 140 heat recovery unit, combined by means of a Plenum Adapter with RNW 404 dehumidifier and operating in heat recovery and free cooling modes.In both diagrams HR 140 is fitted with both Plenum Adapter and Free-Cooling kit.

Kit Free-cooling

AdapterPlenum

Kit Free-cooling

Adapter Plenum

16

Air handling units

Primary Air Handling Unit UAP 130-CCode 7041130

Primary air unit for room air renewal with high efficiency heat recovery (~90%) and summer dehumidification. Operation with fresh air only. The unit consists of two separate modules, which means easier installation and full use of the available space: the fan unit and the heat recovery/handling unit. These can either be installed close together or in separate locations. High-efficiency (~90%) countercurrent air discharge heat exchanger. The system implies the connection with outside fresh air in the fan section (equipped with a filter and a silencer), as

well as the connection with the return air from wet rooms (such as bathrooms and kitchen) in the heat recovery and handling unit. The ventilation units can be split into intake and discharge units, which means easier installation and connection even in narrow spaces. UAP 130-C can be managed independently, by external control or by Wi electronic unit.

Features UAP 130-C> Horizontal installation into false ceilings.> 2 split units: one air handling/recovery unit and one ventilation unit also for remote installation.> Residential application (120 m2 approx.)> Dehumidification function.

> Summer/winter sensible heat integration (on demand).> Summer/winter air renewal with high-efficiency heat recovery (~90%).> Summer free-cooling with by-pass unit.

Specifications:

Max power consumption 408 WSupply voltage 230 V - 50 HzDehumification capacity(air renewal)

37 l/24h (35 °C RH 50%)

Air flow from 90 to 150 m3/hRenewal air flow with booster function

180 m3/h

Nominal water flow (at 15 °C) 250 l/hNominal pressure drop for the hydraulic circuit

12 kPa

Summer sensible heat integration up to 680 thermal W High-efficiency heat recovery ~90%Total output head 70 PaModulating fans EC high-efficiencyRefrigerant 134 a

Split units

Air handling and recovery unitSize lxhxd: 643x270x780 mmWeight: 66 kg

Ventilation unitsAcoustically insulatedSize (combined version) lxhxd:720x420x270 mm.Weight (combined version): 18 kg

643 mm

420

270 mm

420

780 mm

720 mm

17

UAP 130 Free Cooling

By-pass unit for free-cooling. Optional component with motorized damper diverting the output air for summer free-cooling.

ACCESSORIES UAP 130-C

Code 70411381

2 TH Controller

Optional component for UAP autonomous operation, including:•Outsidesensortodetecttheoutdoorclimate.•TH-Controlleruserterminaltodetectroomtemperatureand humidity. It displays and controls the parameters of the room and the air handling unit.It also manages the time programming of the different operations.

Code 6600210

UAP 130-C - Functioning Diagrams

Air discharge

Outside air intake


UAP 130(fan unit)

UAP 130(main unit)

Air discharge

Outside air intake


UAP 130(fan unit)

UAP 130(main unit)

Main air supply Main air

supply

UAP 130-C + Kit Free-coolingHeat recovery operation

UAP 130-C + Kit Free-coolingFree-cooling operation

Kit Free-cooling

Kit Free-cooling

These diagrams shows UAP 130-C operating in heat recovery and free-cooling modes.In both examples UAP 130-C is provided with Free Cooling kit.

18

Air handling units

°C

UAP 130-C Control

°C

ON

OFF

Humidistat Thermostat

Timer or On/Off switch

Activated carbon cooker hood

(Booster)

Summer / winter switch

Switch kitchen/bathroom

(Booster)

U %

Outside control

ON

OFF


(Booster)

Switch kitchen/bathroom

(Booster)

With Wi controllers (digital output from Wi-U)

Autonomous functioning

Outside sensor TEFREE-COOLING!!!

Th Controller*

or duct sensor**

UAP 130 can be controlled in three different ways as follows: by external control, by Wi controller or completely autonomously with an external sensor and TH control terminal.

* It is possible to set remote contacts with: humidistat, thermostat, kitchen/bathroom (booster) switch, On / Off ventilation

** The unit shall work constantly

Wi-U

19

Unit Comfort UC 300-M Code 7041300

Air handling unit with high heat recovery efficiency. It is used for summer dehumidification with fresh air flow regulation or partial air recirculation. The renewal air flow rate, from 80 to 160 m3/h, can be set through the user interface and automatically detected. It consists in a single unit made up of two sections, heat recovery section and air handling section (condensed with water). It is horizontally installed into false ceilings, and it is equipped with air vents on the two shorter sides in order to ensure easier air duct connection and installation even in narrow spaces. The high efficiency (~90%) heat exchanger is situated on the countercurrent air discharge side. The following operation modes can be set through the user remote control: air renewal, ventilation, dehumidification,

summer and winter sensible heat integration. The unit is equipped with one pre-installed and electrically connected motorised damper for automatic recirculating air flow control. It can be optionally combined with two additional motorised dampers to avoid annoying draughts of fresh air (e.g. very cold unprotected windy locations). Another optional is a valve with modulating servomotor to control air temperature in winter through UC 300-M. It also controls air temperature in summer when the compressor is off. Comfort UC 300-M unit can be controlled by Wi electronic control unit, by external control or autonomously (work in progress).

Features UC 300-M> Horizontal installation into false ceilings.> Single unit including two parts: heat recovery part and air handling part (condensed with water). > Residential application (120 m2 approx).> Ventilation function.> Dehumidification function.

> Summer/winter air renewal with high-efficiency heat recovery (~90%).> Summer/winter sensible heat integration (on demand).> Free-cooling control.> (Optional) 2-way valve with servocontrol on air temperature.

Specifications:

Max power consumption 520 WHigh-efficiency heat recovery ~90%Modulating fans EC high efficiencyDehumification capacity (recirculation) 38.7 l/24h (26 °C RH 65%)Dehumification capacity (renewal) 51.4 l/24h (35 °C RH 50%)Renewal air flow from 80 to 160 m3/hRenewal air flow with booster function 160 m3/hSupply air flow up to 300 m3/hNominal water flow (at 15 °C) 400 l/hNominal pressure drop for the hydrau-lic circuit

13.2 kPa

Discharge fan output head 160 Pa*Supply fan output head 154 Pa*Summer sensible heat integration 1200 WRefrigerant 134 aSize lxhxd 770x275x1150 mmWeight 55 kg

770 mm

275

Optional motorized dampersCode 7041155

*with air flow 160 m3/h

summer

sensible heat

integration

1200 W

1150 mm

Optional modulating valveCode 7041160

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Air handling units

Unit Comfort UC 300-MHE Code 7041350

Air handling unit with high heat recovery efficiency. It is used for summer dehumidification with fresh air flow regulation or partial air recirculation. The fresh air flow rate, from 80 to 200 m3/h, can be set via the user panel and automatically detected. Air handling machine built as a single unit made up of two sections, heat recovery and air treatment (condensed with air). It is horizontally installed into false ceilings, and it is equipped with air vents on the two shorter sides in order to ensure easier air duct connection and installation even in narrow spaces. The high efficiency (~90%) heat exchanger is situated on the countercurrent air discharge side. The following operation modes can be set through the user remote control: air renewal, ventilation, dehumidification,

summer and winter sensible heat integration. In particular, summer sensible heat integration and part of the condensed latent heat are supplied costlessly, i.e., without using further energy from the chiller. The unit includes four pre-installed and electrically connected motorised dampers for automatic function control. The heat discharge unit within the exhaust duct reduces energy consumption both during dehumidification and integration modes. Another optional is a valve with modulating servomotor to control air temperature in winter through UC 300-MHE. It also controls air temperature in summer when the compressor is off. Comfort UC 300-MHE unit can be controlled by Wi electronic control unit, by external control or autonomously (work in progress).

Features UC 300-MHE> Horizontal installation into false ceilings.> Single unit including two parts: heat recovery part and air handling part (water-condensed).> Residential application (150 m2 approx).> Ventilation function.> Dehumidification function.

> Summer/winter air renewal with high-efficiency heat recovery (~90%).> Summer/winter sensible heat integration (on demand).> Free summer sensible heat (min. 1200 W).> Free-cooling control.> (Optional) 2-way valve with servocontrol on air temperature.

Specifications:

Max power consumption 520 WHigh-efficiency heat recovery ~90%Modulating fans EC high-efficiencyDehumification capacity (recirculation) 34.0 l/24h (26 °C RH 65%)Dehumification capacity (renewal) 49.3 l/24h (35 °C RH 50%)Renewal air flow from 80 to 200 m3/hRenewal air flow with booster function 200 m3/hSupply air flow up to 300 m3/hNominal water flow (at 15 °C) 300 l/hNominal pressure drop for the hydraulic circuit

7.4 kPa

Discharge fan output head 148 Pa* renewal+integrationDischarge fan output head 203 Pa* renewal+dehumidif.Supply fan output head 128 Pa*Summer sensible heat integration 1200 W (free)Refrigerant 134 aSize lxhxd 850x275x1200 mmWeight 60 kg

Free summer

sensible heat

1200 W

850 mm

275

*flow rate 200 m3/h

1200 mm

Optional modulating valveCode 7041160

21

Unit Comfort UC 300-MHE Details Unit Comfort UC 300-MHE includes some very important structural details:

• It consists in a single unit made up of two sections: heat recovery part and air handling part (condensed with air).

• The unit has a rectangular shape with air vents placed on the two shorter opposite sides, which means easier air duct connection and installation even in narrow spaces.

• The unit is equipped with four pre-installed and electrically connected motorised dampers for automatic function control.

• The heat discarge unit is situated in the air exhaust duct. In this way energy consumption is reduced both during dehumidification and integration modes.

• Compared to Unit Comfort UC 300-M, Unit Comfort UC 300-MHE has a different refrigeration circuit including an additional condensation coil in the air exhaust duct. This means free summer sensible heat (at least cooling 1.2 KW) without using further energy from the chiller.

• A self-control PCB is supplied as standard. Considering the air flow characteristics of the distribution system, this board keeps air flow setting even when the filters are clogged, thus signalling the need for cleaning.

Ref. Description

A Air supply ventB Air supply fanC Optional free-cooling vent 1D Finned coilsE Optional free-cooling vent 2F Heat exchangerG Motorised dampersH Room intake vent for air recirculationI Room intake vent for air renewalJ Fresh air intake ventK Renewal air exhaust ventL Air discharge fanM Condensation coil in the exhaust ductN CompressorO Hydraulic connectionsP Condensation outletsQ SwitchboardR Control unit

UC 300-MHE Components

SET

G

F

ED

C

BA

Q

R

P O

N

M

L

K

JI

H

22

Air handling units

UC 300-MHE - Functioning Diagrams

43

Filte

rFi

lter

Filte

rFi

lter

Heat recovery

Coils

Recirculation from clean rooms (passage)

Bathroom and kitchen air intake 130 m3/h

Outside air intake

Air discharge

Air renewal only (e.g. in winter)

Dam

per 1

Dam

per 4

Dam

per 2

Dam

per 3

Fan

1

Fan

2

Switc

hboa

rd

Condenser4

32

Filte

rFi

lter

Filte

rFi

lter

Air supply

Recirculation from clean rooms (passage)

Outside airintake

Air discharge

Dehumidification and integration with air renewal and partial recirculation

Dam

per 1

Dam

per 4

Dam

per 2

Dam

per 3

Fan

1

Fan

2

Switc

hboa

rd

140 m3/h

80 m3/h oras appropriate

Outside airintake100 m3/h

180 m3/h oras appropriate

240 m3/h

These diagrams show some possible operations with UC 300-MHE: air renewal, dehumidification, integration with air renewal and partial recirculation.

Heat recovery

Coils

Condenser

23

°C

UC 300-M and UC 300-MHE Control System

°C

ON

OFF

User interface

Humidistat Thermostat

RECIRCULATION contact


(Booster)

Summer/Winter switch

Kitchen/bathroomswitch

(Booster)

U %

External control

ON

OFF

User interface


(Booster)


(Booster)

Wi controller (digital output from Wi-U module)

ON

OFF

User interface

Room sensorTA-H


(Booster)


(Booster)

Independent functioning (WORK-IN-PROGRESS)Outside sensor TE

Duct sensorTA-H

or

FREE-COOLING!!!

UC 300-MHE and UC 300-M can be controlled in three different ways: by external control, by Wi control unit or autonomously (work in progress).

RENEWAL contact

Wi-U

24

RDZ ModulAir Distribution Systems

RDZ ModulAir is a flexible modular air distribution system including a plenum

and semi-rigid ducts which are used for air intake and discharge, thus ensuring

balanced air flow distribution in all rooms. The system consists in 150 mm ducts to

connect the unit with the distributor, a modular plenum with 9 or 15 vents, flexible

ducts made of PE-HD DN 63 and room supply and intake vents.

If you connect one or more distributor vents, you can balance the air flow rate,

room by room, according to the need, without using complex dimensioning and

specific installation, as usually happens with traditional sheet metal ducting.

Connections are installed in a very easy and fast way thanks to an automatic “click

and go” joint system which ensures tight seals.

Since it consists of small diameter pipes, the air distribution system can be

installed into the ceilings, under the floors, into the walls, or even between steel

reinforcing bars before casting the concrete.

All components are treated with antibacterial and anti-static additives to ensure

perfect cleanliness and easy maintenance as mentioned by European standards.

One of the main advantages is the reduction in transmitted noise because all

materials are made of plastic.

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Easy and fast modular installation.

Reduced noise transmission.

Easy maintenance and cleaning.

It can be installed into ceilings, under floors and into walls.

Reduced number of necessary components.

25

ComponentsRDZ ModulAir DuctFlexible duct DN 63 for RDZ ModulAir System. Package: 50-m roll.

1

Plenum Fitting 9 outletsAir supply or intake plenum with 9 out-lets for duct DN 63 + plenum fitting Ø 125 mm (5 closing plugs are supplied as standard).

Plenum Fitting 15 outletsAir supply or intake plenum with 9 out-lets for duct DN 63 + plenum fitting Ø 125 mm (5 closing plugs are supplied as standard).

Fitting with 3-outlet Module Plenum fitting Ø 125 mm + 3 outlets for duct DN 63.

Vent with 3 Outlets(Upright or Horizontal)Air supply or intake square vent for wall installation with 3 upright or horizontal round outlets DN 63.

Double-Wall DuctEco-friendly flexible ducts for air conditioning, made of resin mixture with additives. In the version with insulation, the insulating layer is made of polystyrene fibre, thickness 25 mm. Package: 10 m.

5

63

4

Air exhaust (stale)

Room air intake (clean rooms)

Room air supply

Cover undefloor heating sytem

Outside air intake

Duct for RDZ ModulAir System

Room air intake (wet rooms)

Unit ComfortUC 300-MHE

Supply vents

Plenum fitting with 9 outlets

Plenum fitting with 15 outlets

Rendering of a ventilation system featuring Comfort 300-MHE and RDZ ModulAir, room by room, as air distribution system.

Intake vents

2

Code 7045000

Code 7045125

Code 7045225

Code 7045135

Code 7045072 Code 7045076

Code 7045210 Code 7045212 Code 7045215Code 7045220

Ø 100Ø 125Ø 150Ø 200

Air handling units

26

Commercial Application with Air Renewal

Unit Comfort UC 1000 Supply duct

Temperature/humidity room sensor

User interface

Intake duct

Manifold cabinet

Radiant ceiling system

Unit Comfort UC 1000 in offices

This picture shows a building with offices, where a radiant heating and cooling system have been installed into the false ceiling. Unit Comfort UC 1000 has been placed into the machine room, and it has been provided with air intake and supply ducts. Unit Comfort UC 1000 is made up of DA 1000 dehumidifier and SR 1000 heat recovery unit. It is ideal for medium-sized commercial applications with a medium number of people. It contains motorised dampers to control dehumidification, ventilation, air renewal (with heat recovery) and summer and winter sensible heat integration. In this way, b!klimax radiant ceiling system combined with one or more Unit Comfort modules becomes a DOAS radiant system (Dedicated Outdoor Air System). It is not only considered as a highly efficient system, but it also ensures excellent quality in terms of room comfort, because it combines room temperature control (sensible heat), through the radiant installation, with air handling in terms of primary air supply and humidity control. Thanks to the cross-flow heat exchanger, some energy can be saved, while additional sensible heat can be supplied on demand.

27

Ductable Units for Commercial Application with Air Renewal and Dehumidification

DA 700, 1000 and 2000 dehumidifiers are air handling units specifically

designed for radiant heating and cooling systems for floors, ceilings and

walls in commercial application. They contain a direct expansion refrigeration

cycle, and they are equipped with additional heat exchangers for pre-

and post- air treatment. In summer these units dehumidify the room air,

reintroducing it into the room at a neutral temperature; if necessary, they can

also supply additional sensible heat in combination with the radiant system.

SR 700, 1000 and 2000 heat recovery units are combined with the relevant

dehumidifiers in buildings, where room air renewal is necessary. They are

equipped with high-efficiency aluminium-plate heat exchangers to save the

sensible energy from the exhaust air flow.

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Commercial applications.

Room comfort and hygiene all year round: fresh, clean air.

Controlled air renewal.

Ventilation.

Summer dehumidification.

Summer/winter sensible heat.

Free-cooling in spring and autumn.

No condensation nor mould risk.

Installation into false ceilings.

28

Air handling units

Dehumidifier DA 700 Code 7041700

DA 700 dehumidifier for radiant heating and cooling systems for floors, ceilings and walls is suitable for commercial applications. It is used for air handling in medium-sized buildings with a medium number of people. Summer operation is combined with a radiant cooling system or at least a system operating with water at 15°C. The galvanized steel casing of the unit contains a set of finned coils for air treatment, a refrigeration circuit for

dehumidification, an air intake filter, a condensation trap, an air supply fan and a PCB.DA 700 dehumidifier is equipped with a display showing the different operation icons. The supply vent air temperature and other parameters can be also read and set, while input / output stata and any alarms can be displayed and managed.

Features DA 700> Horizontal installation into false ceilings.> Commercial application (small volume).> Dehumidification function.

> Ventilation function.> Summer sensible heat integration.

Specifications:

Max power consumption 1214 WDehumidification capacity 84.4 l/24h (26 °C RH 65%)Nominal air flow 700 m3/hPre-treatment water flow (at 15 °C) 700 l/hCondensation water flow 100 l/hTotal output head 87 PaSummer sensible heat integration max 3016 WSize lxhxd 775x342x675 mmWeight 61 kg

Summer

sensible heat

integration

3000 W

775 mm

342

675 mm

29

Heat Recovery Unit SR 700 Code 7041710

SR 700 cross-flow heat recovery unit with aluminium-plate heat exchanger has been designed to be used with DA 700 dehumidifier. It is equipped with two double suction centrifugal fans, one in the supply duct and one in the exhaust duct. DA 700 controls the operation of SR 700 by means of a suitable connector which guarantees reliable intercommunication.

By default the unit starts up in recirculation mode, while air renewal is activated through the remote input on DA 700 dehumidifier. SR 700 heat recovery unit is equipped with ON/OFF motorised dampers which can be also partially opened to control air flow.

Features SR 700> Horizontal installation into false ceilings.> Commercial application.

> Ventilation function.> Renewal function can be enabled by relevant remote input on DA 700.

Specifications:

Max power consumption 778 WNominal air flow 700 m³/hAir dampers supplied as standardDischarge fan output head 48 PaSupply fan output head 149 PaHeat recovery efficiency 59%Size lxhxd 966x342x926 mmWeight 52 kg

Efficiency59%

966 mm

342

926 mm

*In combination with DA 700

30

Air handling units

Dehumidifier DA 1000 Code 7041100

DA 1000 dehumidifier for radiant heating and cooling systems for floors, ceilings and walls is suitable for commercial applications. It is used for air handling in medium-sized buildings with a large number of people. Summer operation is combined with a radiant cooling system or at least a system operating with water at 15°C. The galvanized steel casing of the unit contains a set of finned coils for air treatment, a refrigeration circuit for

dehumidification, an air intake filter, a condensation trap, an air supply fan and a PCB.DA 1000 dehumidifier is equipped with a display showing the different operation icons. The supply vent air temperature and other parameters can be also read and set, while input / output stata and any alarms can be displayed and managed.

Features DA 1000> Horizontal installation into false ceilings.> Commercial application (medium volume).> Dehumidification function.


Specifications:

Max power consumption 1192 WDehumidification capacity 127.5 l/24h (26 °C RH 65%)Nominal air flow 1000 m3/hPre-treatment water flow (at 15 °C) 1000 l/hCondensation water flow 130 l/hTotal output head 116 PaSummer sensible heat integration max 4498 WRefrigerant R410a 1250 gSize lxhxd 903x393x705 mmWeight 70 kg

Summer sensible

heat integration

4500 W

903 mm

393

705 mm

31

Code 7041110Heat Recovery Unit SR 1000





Specifications:

Max power consumption 605 WNominal air flow 1000 m³/hAir dampers supplied as standardDischarge fan output head 92 PaSupply fan output head 228 PaHeat recovery efficiency 59.1%Size lxhxd 1193x393x1056 mmWeight 72 kg

Efficiency

59%

1193 mm

393

1056 mm


32

Air handling units

Dehumidifier DA 2000 Cod. 7041500

DA 2000 dehumidifier for radiant heating and cooling systems for floors, ceilings and walls is suitable for commercial applications. It is used for air handling in large-sized buildings with a large number of people. Summer operation is combined with a radiant cooling system or at least a system operating with water at 15°C. The galvanized steel casing of the unit contains a set of finned coils for air treatment, a refrigeration circuit for

dehumidification, an air intake filter, a condensation trap, an air supply fan and a PCB. DA 2000 dehumidifier is equipped with a display showing the different operation icons. The supply vent air temperature and other parameters can be also read and set, while input / output stata and any alarms can be displayed and managed.

Features DA 2000> Horizontal installation into false ceilings.> Commercial application (large volume).> Dehumidification function.


Specifications:

Max power consumption 3533 WDehumidification capacity 242.7 l/24h (26 °C RH 65%)Nominal air flow 2000 m3/hPre-treatment water flow (at 15 °C) 2000 l/hCondensation water flow 250 l/hTotal output head 214 PaSummer sensible heat integration max 8456 WRefrigerant R410a 2500 gSize lxhxd 1052x535x798 mmWeight 114 kg

1052 mm

535

Summer sensible

heat integration

8450 W

798 mm

33

Heat Recovery Unit SR 2000 Code 7041510





Specifications:

Max power consumption 1621 WNominal air flow 2000 m³/hAir dampers supplied as standardDischarge fan output head 170 PaSupply fan output head 425 PaHeat recovery efficiency 61.8%Size lxhxd 1214x535x1266 mmWeight 116 kg

Efficiency62%

1214 mm

535

1266 mm


34

Air handling units

Features UC 700/1000/2000> Horizontal installation into false ceilings.> Commercial application.> Dehumidification function.> Ventilation function.

> Air renewal with heat recovery.> Summer/winter sensible heat integration.> Air dampers supplied as standard.

Unit Comfort UC 700 / 1000 / 2000 are designed as the combination between DA 700 / 1000 / 2000 dehumidifiers and SR 700 / 1000 / 2000 heat recovery units. These combinations are used in commercial applications in medium-sized buildings with a medium number of people. Unit Comfort modules are supplied as standard with motorised dampers to control dehumidification, ventilation, air renewal (with heat recovery) and summer and winter sensible heat integration.

Since they are condensed with water, hydraulic connection is very easy.

For specific technical details see relevant data sheets for DA 700 / 1000 / 2000 and SR 700 / 1000 / 2000.


Size LxhxD

UC 700 966x342x1585 mmUC 1000 1193x393x1745 mm UC 2000 1214x535x2048 mm

P

L

h

35

DA Fan

Coils

Fan1 SR

Fan 2 SR

Heat exchanger

Switchboard

Filter

Filter

Compressor

Dam

per

Damper

Functioning DiagramsAir recirculation

Supply

Room intake

Coils

Heat exchanger

Switchboard

Filter

Dam

per

Filter

Compressor

Damper

Air renewal

Supply

Room intake

DA Fan

Fan 1 SR

Fan 2 SR

Unit Comfort 700 / 1000 / 2000 can work at the following operating modes: ventilation only, dehumidification, summer and winter sensible heat integration, air recirculation and air renewal.• Ventilation function with Unit Comfort activates two standard fans, one in DA and one in SR unit. This ensures

larger head to exhaust air.• By closing the Dehumidification contacts, the unit begins to dehumidify and keep the same neutral supply

temperature as the intake one. The temperature is preset at 26°C but this value can be changed.• The Integration function in summer is activated by closing the integration contacts. The units start dehumidifying

the room air by introducing a certain degree of sensible heat into the room. The parameter of the room temperature can be set by the user. The Integration function in winter just activates the ventilation or air renewal functions thereby causing hot water to circulate. In this mode the dehumidification operation is disactivated.

• Recirculation is the default operating mode of the two combined DA and SR units guaranteeing dehumidification and integration by recirculating room air.

• Air Renewal function is activated by closing the renewal contacts. The units move the dampers so as to change air flow and after a while they turn on the discharge fan. At this point, during summer, the units begin to dehumidify or integrate, totally renewing the air (or partially renewing it in case of partialised dampers). During winter the units take some air from outside, which passes through SR heat exchanger before being supplied into the room.


Unit Comfort UC 700 / 1000 / 2000 operating in air recirculation and air renewal mode.

Dam

per

Dam

per

36

RDZ S.p.A.Viale Trento, 101 (S.S. 13 Km 64,5) - 33077 Sacile, PN - ITALYTel. +39 0434.787511 - Fax +39 0434.787522www.rdz.it - [email protected]

Da trent’anni lavoriamo in un clima ideale.

Un clima che ci ha portato ad essere leader

in Italia nel riscaldamento e raffrescamento

radianti e ad ottenere, per primi, la Certificazio-

ne di Qualità (oggi UNI EN ISO 9001:2008) per

il nostro sistema di gestione. Perchè, sin dalla

fondazione di RDZ, abbiamo sempre scelto di

lavorare bene. Utilizzando i materiali migliori,

ricercando e sviluppando le soluzioni più inno-

vative, fornendo costantemente un servizio di

altissima qualità ai nostri clienti. Ma anche

instaurando in azienda un “clima“ positivo,

aperto, che favorisce il flusso di idee e stimola

la collaborazione reciproca. Per lavorare

sempre meglio e raggiungere ogni giorno nuovi

traguardi di eccellenza.

Cod

. 912

8205

.01

- 02/

2013

- C

opie

2.0

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