W: www.gdl.co.uk T: 01457 861538

Eco Active H E A T R E C O V E R Y S Y S T E M S

Heat Recovery Penthouse Turret

H E A T R E C O V E R Y S Y S T E M S

Heat Recovery Penthouse Turret The HRPT provides ventilation into spaces all year round. The unit provides 100% fresh air whilst

recovering heat to provide winter heating. The unit also provides passive ventilation for summer

periods. The unit eliminates the need for space heating, make-up air louvres or openable windows,

reducing the overall cost of the ventilation and heating system.

The HRPT comprises of two low energy fans providing a duty of up to 0.32m3/s each and a plate heat

exchanger with an efficiency of 74%. The overall unit is ErP 2018 compliant and has the capacity to

recover heat of up to 8kW. The integrated dampers give control over the flow of air through each

section.

The integral passive section of the unit provides the required summer ventilation with the added

benefit of a forced mechanical ventilation system. This allows the system to provide a complete

purge of the space when required.

Key Features:

Low noise operation

Air volumes of up to 300 l/s can be achieved

Below 35dB noise levels

Ensure IAQ and temperatures remain within D of E guidelines

Easy to use in room controller

Summer boost and night purge

Available in a range of colours and finish

H E A T R E C O V E R Y S Y S T E M S

Design The unit is designed to serve spaces with occupancies of up to 32 people. The unit is controlled via a

in room CO2 and temperature sensor to provide the winter and summer ventilation.

The standard unit size is 1500 x 1500 x 700H nominal (1500mm square shaft dimension), of which

half the unit provides the passive ventilation with the remainder half housing the mechanical fans

and the plate heat exchanger. The unit is supplied with a split drop duct and a 1200 x 1200 3-way air

diffuser to be mounted onto the ceiling. The unit can also be integrated with ducted systems.

A __ __ A A __ __ A

B __ __ B B __ __ B

1500mm x 1500mm nom. Clear shaft dimension

Unit louvred height 700mm

Section A-A in plan (turret) Section B-B in plan (grille)

1500mm

150

0mm

1200mm

120

0mm

PASSIVE

PA

SSIV

E

EXTR

AC

T

SUP

PLY

SUP

PLY

EX

TRA

CT

H E A T R E C O V E R Y S Y S T E M S

Dimensions

Up stand to be designed and constructed by others.

Maximum dead load on up stand:

Turret only 140kg

Drop duct 240kg

Combined 380kg

The drop duct housing the PHX, fans and dampers are to be supported with drop rods on uni-strut framing

fixed back to steels. Additional lugs provided to support drop duct to base of up stand.

H E A T R E C O V E R Y S Y S T E M S

Technical Information Fan Data

Model : HRPT-300L

Fan duty : 0.3m3/s

Fan ref : K3G280-RB02-03

Fan SFP : 0.124kW/(m3/s)

Ext Pressure : 50Pa

Fan start Power : 168W

Fan run Power : 37.3W

Fan start amps : 1.4A

Fan run amps : 0.26A

Power supply : 1~ 200 – 240v

qv [m³/h]

2.5002.3002.1001.9001.7001.5001.3001.100900700500300100

qv [m³/s]

0,60,50,40,30,20,10

pfs

[P

a]

500

450

400

350

300

250

200

150

100

50

0

pfs

_ [in

. w

g]

2

1,9

1,8

1,7

1,6

1,5

1,4

1,3

1,2

1,1

1

0,9

0,8

0,7

0,6

0,5

0,4

0,3

0,2

0,1

0

Octave band center frequency on pressure side in Hz

63 125 250 500 1000 2000 4000 8000 LwA

Sound p

ow

er

in d

B 90

80

70

60

50

40 52,3

54,5 58

,5

55,5

52,9

49,7

48,7

45,5

58,5

Octave band center frequency on the suction side in Hz

63 125 250 500 1000 2000 4000 8000 LwA

Sound p

ow

er

in d

B 90

80

70

60

50

40

49,3

51,5 55

,5

52,5

49,9

46,7

45,7

42,5

55,5

H E A T R E C O V E R Y S Y S T E M S

PHX Data

Efficiency : 75.8% (EN 13053)

Dimensions : 840 x 840 X 450

Temperature in : Supply -5oC Extract 22oC

Temperature out : Supply 18oC Extract 5.5oC

Nom. Flow rate : 0.3m3/s

Face velocity : 0.9m/s

Turret Data

Nom. dimension : 1500 x 1500 x 700

Bypass section : 1500 x 750 x 750

Bypass flow rate : 0.315m3/s

Louvre free area : 50%

Louvre Class : A, B velocity > 1.5 m/s

Damper free area : 85%

Damper leakage rate : 5m3/hr/m2

Damper U value : 1.8W/m2/ oC

Operation GDL's intelivent HRP units are a mix mode ventilation product. they operate in the

following modes:

Heat recovery mode: Winter

The plate heat exchanger and 2 low energy fans provide tempered fresh air by recovering the heat

from the exhaust air already within the space.

Passive mode: Summer

In summer, once the peak occupied temperature is reached within the classroom, the units operate

in 'passive mode'. No fans will run but by opening the summer passive damper, air circulates through

the unit, by the natural stack/buoyancy effect.

Boost mode:

If temperatures within the room do not reduce after the passive mode has been in operation for a

short period, the summer/extract fan will start to operate to boost the ventilation rate through the

space.

H E A T R E C O V E R Y S Y S T E M S

Night purge - passive ventilation during unoccupied hours.

When external temperatures are low, the space can be ventilated automatically to refresh and cool

the space during unoccupied night time periods. This can be achieved by running the units in the

'passive mode', providing free cooling without compromising the building's security.

Smart Control The smart room controller is an application configurable wall mounted controller with the ability to

integrate into network devices that support BACnet MSTP or Wireless ZigBee mesh network

technology.

• Wireless not available for this model

Customisable Touch Screen

The touch screen of the room controller offers a customizable user experience with selection of

languages, temperature scales, buttons, and screen colours, it also supports the upload of an image

or logo that becomes the default standby screen of the device. Custom messages can also be

displayed on-screen using BACnet® objects when the room controller is integrated via a BACnet

MS/TP system.

Optional Passive Infrared (PIR)

All models can be equipped with a discrete optional passive infrared (PIR) motion sensor. With the

embedded sensor, the room controller uses advanced occupancy routines to generate automatic

energy savings during occupied and unoccupied periods without sacrificing occupant comfort.

H E A T R E C O V E R Y S Y S T E M S

www.gdl.co.uk

sales@gdl.co.uk

GDL Air Systems Ltd, Air Diffusion Works

Woolley Bridge Rd, Hadfield, Glossop

Derbyshire, SK13 1AB