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Chiltrix CX45, Installation And Operation Manual

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Chiltrix CX45 Installation And Operation Manual Download Page 38

 
 
 
 
 
 

 

38 

 

Seasonal Switch Valve 

 

The G3 port can be used to control a seasonal switch valve. The seasonal switch valve is 
used to isolate the floor coils (if needed) from the fan coils when switching over from 
heating to cooling. The seasonal switch valve is controlled by parameter 14. When 
parameter 14 is 0, the valve is configured as a seasonal Switch. When parameter 14 is 
1, the valve is configured as a solar pre-heat valve. See detailed wiring diagram on the 
next page.  

 

 

 

 

 

Summary of Contents for CX45

Page 1: ...1 DC INVERTER AIR TO WATER HEAT PUMP AC series Heating Cooling series CX45 Installation and Operation Manual Version 1...

Page 2: ...and design guide 5 Heat Pump Installation 32 Electrical Connections 34 System Filling 42 Control Panel 44 Parameter Checking and Setting 47 Parameter Checking Only 49 Display Modes 51 Controller Comm...

Page 3: ...at a spot with the potential hazard of leaking flammable gas If gas is leaking near the machine there might be the risk of explosion Make sure that the foundation of the unit is stable If the foundati...

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Page 5: ...pump connections can be found in the wiring diagram 2 The loop example above is designed with wild coils Water flows through the coil at all times if there is a call for heating or cooling the FCU co...

Page 6: ...tank drawing is controlled by the fan coil control board For wiring instructions please refer to the fan coil installation manual For the pump selection guide see page 27 Note Cooling set points refe...

Page 7: ...Add up the equivalent length of pipe for the fittings 13 8 11 7 25 5 then add the actual pipe 25 5 115 140 5 of 1 pipe Once you know the total length of pipe use the 1 PEX 10 Glycol Feet of head per...

Page 8: ...n the internet the following is an example http westank com calculator Minimum loop pressure is 14 5 psi maximum pressure is 43 5 psi and ideal pressure is 29 psi The Lowest temperature is 44 F the hi...

Page 9: ...9 Freeze protection...

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Page 25: ...Head ft 100 ft Friction Loss psi 100 ft 1 60 0 6 0 5 0 2 2 120 1 3 1 0 0 4 5 300 3 2 5 7 2 5 7 420 4 4 10 5 4 6 10 600 6 3 20 0 8 7 1 inches Volume Flow gal min Volume Flow gal hr Velocity ft sec Fri...

Page 26: ...ft Friction Loss psi 100 ft 2 120 0 4 0 1 0 1 5 300 1 1 0 4 0 2 7 420 1 6 0 8 0 4 10 600 2 2 1 6 0 7 1 1 2 inches Volume Flow gal min Volume Flow gal hr Velocity ft sec Friction Head ft 100 ft Frictio...

Page 27: ...t For this example we will use 11 36 feet of head The Taco 0012 meets this criterion So does a Taco 0010 Because the curve for the 0012 is slightly above the target operating point the flow rate in th...

Page 28: ...practice to select a circulator where the target operating point falls near the outer ends of the pump curve even if the pump curve is still above the target operating point Doing so would force the c...

Page 29: ...sizing of circulators increases initial as well as life cycle costs and should be avoided The wide range of hydronic circulators available from Taco allows conscientious designers to properly match th...

Page 30: ...to get 8 GPM of flow in the system Say you forgot to add in a flow check to prevent gravity flow If you were to add a 219 Flo Chek all of a sudden you would have a flow rate of 2 GPM through the same...

Page 31: ...rnal CX30 WILO Pump Pipe Insulation All loop piping must be insulated per local and national mechanical codes For For design tips and a thickness calculator please visit http www armacell us knowledge...

Page 32: ...ghboring buildings Moreover adequate service clearance should be kept around the unit 5 The unit should not be installed in places accompanied with oil inflammable gases corrosive components e g sulfu...

Page 33: ...33 Clearances unit mm 200mm 8 350mm 14 400 16 500 20 1000 40...

Page 34: ...supervision of a qualified electrician Wires spare parts and materials etc must satisfy the relevant standards issued by the host country or region The heat pump does not include an AC disconnect or s...

Page 35: ...p does not have the required pressure at the targeted flow rate a second Wilo RS 25 7 5 may be added to increase the total pump pressure This will double the head pressure at the targeted flow rate Se...

Page 36: ...36 Second PWM Pump Wiring Use proper splicing connectors to connect the second PWM pump in parallel to CN6...

Page 37: ...37 When using a second NON PWM water pump When using a second NON PWM water pump use terminals C6 and L2 for power...

Page 38: ...he floor coils if needed from the fan coils when switching over from heating to cooling The seasonal switch valve is controlled by parameter 14 When parameter 14 is 0 the valve is configured as a seas...

Page 39: ...39 G3 VALVE Seasonal Switch Valve Solar Pre heat Valve...

Page 40: ...40 G1 Valve DHW and AC...

Page 41: ...ort of the master unit is connected to the AC 2nd switch port of the slave unit This port is activated when the master unit cannot reach the target temperature within 15 minutes The slave unit must be...

Page 42: ...to hold the loop volume Using a filling pump and 3 hoses place one hose in the glycol container and connect it to the suction side of the pump prime the pump then connect the other hose to the pump di...

Page 43: ...installed in the loop Air in the system may cause a flow switch alarm the controller will display a P5 or a P6 error code Proper and even flow through each fan coil is critical for both heating and c...

Page 44: ...f and be used as a timer 1 Key functions 1 Two colored indicator light when in standby the blue light is on when the compressor is on the red light is on when there is an error the red light is on For...

Page 45: ...e unit press and hold the On Off key for one second To stop the unit press and hold the On Off key for one second 2 Mode Switch 2 modes total Under mode standby or on press the M key repeatedly to cyc...

Page 46: ...me hour value will flash then press or the value will increase or decrease Press and hold either key and the value will cause a continuous increase or decrease Press the to confirm settings and exit t...

Page 47: ...the same method as timing on C Press the for 3 seconds to enter timing mode press to cancel the time setting Parameter Checking and Setting Please press the M key for 3 seconds and enter parameter se...

Page 48: ...F 260 F B0 check set 13 Defrost interval time multiply rate 0 no defrost 1 4 parameter 08 1 4 1 check set 14 Function parameter 0 G3 is seasonal switch valve 0 check set 1 G3 is solar pre heat valve...

Page 49: ...arch and check parameters No Name Range meaning Status 00 Outdoor pipe temp 30 97 check 01 Compressor exhaust has temp inverter 30 97 0 disconnected 1 connected check 02 Ambient temp 30 97 check 03 AC...

Page 50: ...eck 22 4 way valve 1 run 0 stop check 23 Bypass valve 1 run 0 stop check 24 Solenoid valve 1 1 run 0 stop check 25 Solenoid valve 2 1 run 0 stop check 26 Solenoid valve 3 1 run 0 stop check 27 Electri...

Page 51: ...51 Displays for the different modes 1 Air source heat pumps icons 3 Powered off display If it has a timer on off setting there is a timer icon to indicate it...

Page 52: ...AC cooling display 5 heating display If it has a timer on off setting there is a timer icon to indicate it Controller Communications 2wire The communication cable can be extended to 300 using 16 AWG...

Page 53: ...cycled if switch settings are changed Switch Description Default SW1 8 OFF cooling valid OFF SW1 7 OFF heating valid OFF SW1 6 OFF DHW valid ON DHW invalid ON SW1 5 OFF G1 valid ON G1 invalid ON SW1 4...

Page 54: ...ked E2 Outdoor air temp sensor fault Flash s 3 times Sensor open circuit or short circuit 1 Reconnect the sensor 2 Measure the sensor resistance at different temperatures if it is out of range change...

Page 55: ...blowing 3 Check if the coil temp sensor has an error E9 AC antifreeze twice No flash Inlet or Outlet water temp is lower than 39 2 F AC antifreeze 2 times within 90 minutes Check inlet and outlet wat...

Page 56: ...nect or change the sensor F6 IPM or module control board fault Flash s 14 times 1 Communication wire between IPM module and outdoor PCB 2 IPM Module is burned or IPM has no power from the AC contactor...

Page 57: ...is too low water pump is too small or faulty 4 Throttling device expansion valve problem 5 There is air inside the refrigerant system or refrigerant volume is too high 1 If the error displays before t...

Page 58: ...nt leakage P5 indoor unit water flow fault No flash 1 Low water flow 2 Water flow switch fault 1 Clean the water filter check water pump flow 2 Check and reconnect water flow switch P6 outdoor unit wa...

Page 59: ...at pump when the air temperature drops below 32F in winter you must use an appropriate glycol and water mixture just in case the electricity is cut off We recommend biodegradable non toxic SPP Corn Gl...

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