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GB.FUNKRXHC.180907

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Guide to the GOLD version F functions, 
Reversible heat pump, RX/HC

1. General

RX/HC is a complete reversible heat pump, fully integrated 
in the GOLD air handling unit.

There are three options to defrost the coils  
in the exhaust air:

Option 1.   Reversing the media circuit. 

Option 2.    Reversing the media c  

electric air heater

Option 3.    Reversing the media c  

air recirculation section RX/HC

1.1 Installation 

See the separate installation and maintenance instructions 
to install RX/HC.

See the separate installation instructions to install the air 
recirculation section RX/HC, if used.

2. Material specification

Air handling unit with integrated  
reversible heat pump 

GOLD RX/HC

For defrosting according to option 2 (see section 1):

 

Electric air heater for defrosting. Installed in GOLD RX/HC 
from the factory.

For defrosting according to option 3 (see section 1): 

 

Air recirculation section RX/HC for defrosting. 

Содержание RX/HC

Страница 1: ...ic air heater Option 3 Reversing the media circuit air recirculation section RX HC 1 1 Installation See the separate installation and maintenance instructions to install RX HC See the separate installation instructions to install the air recirculation section RX HC if used 2 Material specification Air handling unit with integrated reversible heat pump GOLD RX HC For defrosting according to option ...

Страница 2: ...rt sequence 3 3 Stop of RX HC air handling unit When stopping the GOLD air handling unit operation of the reversible heat pump is shut down immediately Post cooling of the refrigerant circuit and electric air heater for defrosting if fitted is carried out After cooling is in progress two minutes after the last operation of the compressor or electric air heater 3 4 Temperature regulation The heat p...

Страница 3: ... compressor is regulated to follow the tempera ture requirement At a temperature requirement below 62 5 the speed controlled compressor is run at 25 of max speed and the on off compressor is operational When the temperature requirement decreases below 50 the on off compressor shuts down and the speed controlled compressor is regulated to follow the tempera ture requirement At a temperature require...

Страница 4: ...ry heat exchanger is allowed to regulate to maintain the required supply air temperature If instead the temperature require ment exceeds MIN level operations return to normal mode If any of the following occurs the comfort function is can celled and operation of the reversible heat pump stops Stop of the GOLD air handing unit Time for comfort mode exceeds 30 minutes factory setting can be set 5 30...

Страница 5: ...esh air freezing occurs with varying speed and behaviour The pressure drop across the exhaust coil is measured to detect the defrosting requirement or stop ongoing defrosting Defrosting starts when the pressure drop exceeds a specific limit When the pressure drop falls below another lower limit defrosting stops At defrosting with recirculation the recirculation damper have a finishing sequence for...

Страница 6: ...ntrol card IQlogic Control card iPro cooling circuit control Pressure sensor for pressure drop measurement over the cooling circuit s exhaust air coil function selector switch in D position Temperature sensor for density cor rection of the airflow The sensor is placed between the coil and fan in the exhaust air supply air Temperature sensor for density cor rection of the airflow The sensor is plac...

Страница 7: ... P1 COM POWER IQlogic 1 2 3 4 5 6 7 8 9 10 11 12 S S C 13 NO 14 C 15 NO 16 17 18 19 20 G 21 G0 22 Com 1 Heat Cool Com 2 28 30 G G0 Y U G G0 31 32 P G0 G G0 1 2 1 2 1 2 8 9 G G0 Communication cable to the control unit of the air handling unit where it is connected to one of the outlets for COM 6 11 The function selector switch must be set to position 5 Outdoor air damper Exhaust air damper Air reci...

Страница 8: ...activated by selecting the required accessory from the menu HC defrosting accessory Set the required heating and cooling function standard or comfort Set the required values for outdoor temperature limits for heating and cooling Set the required values for airflow limits for supply air and extract air Calibration is carried out at the factory If recalibration is required this can be carried out by...

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