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Table   1,   Information   available   on   the   UC8   display.   

Item   

Unit    Abbreviation    Examples   

Compressor   suction   line   pressure   

kPa   

SLP   

   

Suction   line   pressure   1034   kPa   

Evaporating   temperature   

°C   

Et   

   

Evaporating   temperature   12°C   

Compressor   suction   line   

temperature   

°C   

SLt   

   

Suction   line   temperature   18°C   

Compressor   suction   side   superheat    K   

SSH   

   

Suction   side   superheat   6K   

Compressor   discharge   line   pressure    kPa   

dLP   

   

Discharge   line   pressure   2447   kPa   

Condensing   temperature   

°C   

Ct   

   

Condensing   temperature   42   °C   

Compressor   discharge   line   

temperature   

°C   

dLt   

   

Discharge   line   temperature   70°C   

Compressor   discharge   side   

superheat   

K   

dSH   

   

Discharge   side   superheat   28K   

De-­‐ice   sensor   temperature   

(located   on   fins   of   the   outdoor   coil)   

°C   

ICEt   

   

De-­‐ice   sensor   temperature   39°C   

Capacity   

%   

CAP   

   

Capacity   100%   

Expansion   valve   1   opening   

%   

EE1   

   

Expansion   valve   1         75%   open   

Expansion   valve   2   opening   

%   

EE2   

   

Expansion   valve   2         75%   open   

   

      

Typical Electrical Box

Looking at unit front with electrical access panel removed

Main

Earth

Stud

Terminal Blocks

Circuit

Breaker

Electric

Heat

Contactors

Ball Valve

Relay

Run (SRB)

Relay

Fault (FRB)

Relay

Unit Controller

Inverter Driver

Содержание CWP Series

Страница 1: ...e of isolation valves and barrel unions on waterlines easily accessible electrical isolations on all external including control circuit power supply and easily detached flexible duct connection Ensure...

Страница 2: ...Temperature EWT and the reduced flow rate Water flow needs to be balanced to suit the system design Refer Technical Data for acceptable water flow rates and pressure drop data 3 4 Air Water Flow Refer...

Страница 3: ...us over RS485 DRED data logging refer www temperzone biz model search UC8 6 START UP PROCEDURE 6 1 Power a Check the unit is electrically connected in accordance with the wiring diagrams b Check all w...

Страница 4: ...rd compressor and total run amps during stable operation e Check the readings against the specified values on Specification Sheet and record these values on the Commissioning Check List on page 11 f U...

Страница 5: ...or the procedure Example For detailed information about monitoring and control via Modbus RTU refer to document UC8 Modbus communications available at www temperzone biz model search UC8 7 4 Setting t...

Страница 6: ...e kept open Location of wall controller or remote temperature sensor is wrong Check for leaks in supply or return air ductwork Unit may be undersized for the current room size or operating under extre...

Страница 7: ...normally open remove link if used IN 1 link D1 SC UC8 Optional Condensate Drain Tray float switch normally closed remove link if used Optional Communicating BMS Controller Modbus RTU B1 A1 0V B A REF...

Страница 8: ...C Ct Condensing temperature 42 C Compressor discharge line temperature C dLt Discharge line temperature 70 C Compressor discharge side superheat K dSH Discharge side superheat 28K De ice sensor temper...

Страница 9: ...acting sensor for the electric heater elements has been triggered The display shows the message Hi t when protection is active 5 High discharge superheat protection Discharge superheat is defined as...

Страница 10: ...ting when a serious fault exists that requires the attention of a service technician The display shows the code of the fault that caused the lock out condition A unit that is locked out can be unlocke...

Страница 11: ...st Cool Cycle Low Pressure SLP kPa Return air temperature C Evap temperature Et C Supply air temperature C Suction Line temperature SLt C Entering Water temperature C Suction Superheat SSH K Leaving W...

Страница 12: ...ydney Australian Head Office and Manufacturing Wellington Christchurch Brisbane Melbourne Adelaide Singapore Shanghai Perth Hobart Newcastle Singapore Shanghai Beijing Jakarta Hong Kong Sri Lanka Maur...

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