Swegon RX/HC Скачать руководство пользователя страница 2

GB.FUNKRXHC.180907

We reserve the right to alter specifications.

2    www.swegon.com

3. Function 

3.1 General

RX/HC has a reversible heat pump function that is con-
trolled by the GOLD air handling unit’s control system 
IQlogic via bus communication to the refrigerant circuit’s 
control system iPro. 

Operation and setting occurs via the GOLD air handling 
unit’s hand-held micro terminal (see section 5. Settings). 

The reversible heat pump circuit is controlled  
with three signals:
• Stop/Start (0/1)
• Heating/Cooling (0/1)
• Speed level compressor in per cent (25-100%)

When operation is requested, a start signal is sent for the 
production of heating or cooling. 

Depending on the need in question, a signal is also sent 
for the operating level, 25-100%. When operation is 
not required, a stop signal is sent and 0 % signal for the 
operating level.

3.2 Start of RX/HC air handling units

Start of the reversible heat pump occurs after the GOLD 
air handling unit’s ordinary start sequence. Operation of 
RX/HC is blocked during the GOLD air handling unit’s 
ordinary start 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 pump has its own control sequence (HC) in the 
GOLD air handling unit’s temperature sequence. The 
sequence regulates the temperature requirement 0-100%, 
for the heating and cooling sequence respectively. 

The heat pump is enabled when the temperature require-
ment exceeds 3% for 60 seconds and is disabled when 
the temperature requirement drops below 1% for 60 
seconds (applies for Operating mode - Standard).

Size 011 - 035 (one compressor)

The refrigerant circuit contains a speed controlled com-
pressor.

The compressor works between a MIN level (normal 25%) 
and maximum speed.

At a temperature requirement below 25% the compressor 
is run at 25% of max, at a need above 25% the compres-
sor follows the temperature requirement. (see the diagram 
below)

3

 

25%

%

%

 

25% 

100 %

 

100 % 

%

1

 

Temperature require-
ment, GOLD
Operation level, HC

Temperature requirement

Compressor operation

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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