Chiltrix CX34 Installation And Operation Manual Download Page 26 | Manualshive

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Chiltrix Inc.

www.chiltrix.com

Onboard External Relay/T-Stat Control

The internal T-Stat allows a heat pump thermostat or other external controller to control switching the
heating, cooling and standby modes (DIN 6 & 7 disabled) of the CX34 via relay. This method of control
generally requires a single-stage standard heat pump thermostat, a installer provided 24 vac transformer and
two relays, (Eg. Tyco K10P-11A15-24, w/ two relay sockets, 27E487). The relays can be located in the chiller
next to the IPM. The transformer can be located in the home near the standard thermostat or other controller.

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Summary of Contents for CX34

Page 1: ... If unsure contact Chiltrix technical support dept with the serial number Installation and Operation Manual CX34 3 Options for Heating Cooling and Domestic Hot Water Version 1 9 PLEASE REVIEW ENTIRE MANUAL BEFORE PROCEEDING PLEASE SUBMIT SYSTEM DRAWING SCHEDULE A COMMISSIONING CALL BEFORE STARTING THE UNIT 1 ...

Page 2: ...e 12 Valves G1 G2 G3 Page 20 Second Heat Source Page 25 External T Stat Control Page 26 System Filling Purging Page 28 Using The Controller Operation Page 30 P Parameter Setting Page 45 Status C Parameter Checking Page 50 About Screen Software Version Page 53 Initial Temperature Settings Page 53 Error Codes Page 54 Dynamic Outdoor Reset Control Page 57 Commissioning and Initial Test Run Page 59 Fo...

Page 3: ...fessional service department if problems arise The unit shall not be installed 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 foundation is unstable the outdoor unit may come loose from its base and cause injury Make sure that the GFCI installed at the se...

Page 4: ...Chiltrix Inc www chiltrix com CX34 Components 4 ...

Page 5: ...e examples on the following pages maximum water flow for the CX34 is 6 7 5 gpm design flow is 4 8 gpm If necessary a second Chiltrix provided PWM pump may be added to the loop and controlled by the CX34 The second water pump connections are always in series with the internal pump The loop example above is designed with wild coils loads Water flows through the fan coils at all times if there is a c...

Page 6: ...ASE SEND YOUR PROPOSED FINAL DESIGN TO CHILTRIX SUPPORT DEPARTMENT FOR APPROVAL COMMENTS AND SUGGESTIONS Pipe Insulation All loop piping must be insulated per local and national mechanical codes Any piping in a system with chilled water used for cooling must also be sealed vapor tight to prevent condensate issues For design tips and a thickness calculator please visit http www armacell us knowledg...

Page 7: ...hiltrix with any questions about emergency or backup heat options See Chiltrix DHW Tank Manual The radiant loop pump in the buffer tank drawing is controlled by the customer s floor loop controls pump etc The buffer tank isolates the pumps from each other providing hydraulic separation and thermal buffering A 15 20 gallon buffer tank is used generally for best performance with a single CX34 30 45 ...

Page 8: ...ssure Drops Add up the equivalent length of pipe for the fittings 13 8 11 7 25 5 Then add this to the actual pipe 25 5 115 140 5 of 1 pipe Once you know the total length of pipe use a 1 PEX 10 Glycol feet of head per 100 feet of tubing chart to get the head for 1 of pipe at 40 F and 4 76 GPM This comes to 0500 feet of head per foot 140 5 x 0500 7 02 ft of head Add up all head calculations 7 02 9 1...

Page 9: ...e 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 highest temperature is 131 F the Initial pressure is 14 5 psi and the final pressure is 29 psi A microbubble air separator should be installed in the loop preferably in the higher part of the loop to remove any air in the circulation loop Alwa...

Page 10: ...mp 25 7 5 Examples If required flow is 4 4 GPM the maximum allowed head would be 22 9 Ft If required flow is 6 6 GPM the maximum allowed head would be 22 9 Ft If required flow is 8 8 GPM the maximum allowed head would be 18 0 Ft Note The CX34 unit adds max 6 ft head A booster pump may be needed for non optimal designs longer piping distances dual or triple CX34s other complex or larger systems 10 ...

Page 11: ...ons capacity Example Based on load calculations a given system need to deliver a maximum of 31 000 BTU with 30 glycol BTU 31 000 480 6 45 GPM BTU water factor required flow rate Use the required flow rate to calculate head based on the Head Flow Curve on the following page Minimum pump speed can be set at P53 minimum speed should not produce a flow rate in your system of less than 6 L min and gene...

Page 12: ...ater or ice Make sure condensate has a way to rapidly and completely drain away from the unit To install the unit on a balcony or on top of a building the installation site must meet the allowable load bearing capacity of the building structure without affecting the structural safety Ensure the unit is well ventilated the direction of air exhaust should be kept away from the windows of neighboring...

Page 13: ...allation Remove Top Front and Right Side Covers DO NOT BEND OR STRESS THE PIPING this may case a broken joint or leak where it joins the heat exchanger Cut the insulation and peel it back out of the way of the flange nuts This will allow installation of the pump without bending either of the pipes The pump will slide in between the pipes with the washers Peel back the insulation Removing the shipp...

Page 14: ...ond Wilo RS 25 7 5 may be added to increase the total pump pressure and flow This will double the head pressure capability at the targeted flow rate When adding a booster pump wire both power and control wires in parallel with the internal Wilo pump wiring Use the same terminals See diagrams next page Electronics Cabinet 14 ...

Page 15: ...Chiltrix Inc www chiltrix com The blue and brown pump CONTROL WIRES are connected to the on the PWM1 terminal connector at the top or the main control pcb Pump POWER wires Pump GROUND wire 15 ...

Page 16: ... AC disconnect or switch on the incoming electrical supply which will be required The power supply cable must be connected to a circuit breaker with at least a 3 mm breaking gap Incoming supply must comply with the technical requirements with a frame ground wire neutral is not used via a distribution box with breakers Allowed Voltage range is 208 240vac Maximum current draw is 13 amps minimum wire...

Page 17: ...Chiltrix Inc www chiltrix com Electric Connections and Component Locator 17 ...

Page 18: ...Chiltrix Inc www chiltrix com CX34 System Wiring Diagram 18 ...

Page 19: ... NON PWM water pump use terminals L2 and C6L for relay coil power only Do not connect a pump directly to L2 and C6L always use a relay with a 240 vac coil This pump will only run when the PWM pump is running Setting P54 0 and P52 1 will shut C6 off when the chiller reaches its set point 19 ...

Page 20: ...is lower than 119 F the compressor will start See the Chiltrix Tank Manual before proceeding to install or connect any DHW or buffer tank See the Chiltrix Tank Manual for important details and options for using CX34 with DHW including backup heat options and anti legionella function READ THE CHILTRIX TANK MANUAL BEFORE DESIGNING CONNECTING CONFIGURING OR USING DHW Note There is one sensor taped to...

Page 21: ...ls with any DHW load Bottom drawing shows 1x CX34 properly used with only one G1 valve The G1 valve should be installed as close to the CX34 as practical The DHW tank should be installed as close to the G1 valve as practical Shorter distances will improve performance and reduce the likelihood of needing a booster pump 21 IMPORTANT Check all tank ports including under any element covers to make sur...

Page 22: ...e should be located as close to the CX34 as practical G1 Valve Wiring and Parameters G1 and G3 valves use 220v Primary from the CX34 Use conduit and install per local code Figure 1 this is the direction of flow when it is activated for DHW Figure 2 this is the direction of flow when it is activated for Heating or Cooling When the brown wire is connected to L1 the blue wire connected to L2 and the ...

Page 23: ...switching over from heating to cooling The seasonal switch valve is controlled by parameter P50 When parameter P50 is 0 the valve is configured as a seasonal Switch When parameter P50 is 1 the valve is configured as a solar pre heat valve The CX34 compares the solar tank temp and AC returned temp When the solar tank temp AC returned temp is 5 the 3 way valve G3S will be on when solar water tank te...

Page 24: ...Chiltrix Inc www chiltrix com G3 VALVE Seasonal Switch Valve G3 Ports 24 ...

Page 25: ...nt pressure relief valve installed and properly vented via copper pipe to a drain NOTE in the application the E backup heat only allows denies power to the standard tank thermostat control The tank thermostat controls the element NOTE THE PREFERRED WAY TO ADD BACKUP HEAT IS TO USE THE CHILTRIX V18 DYNAMIC VARIABLE BACKUP HEATER SECOND HEAT SOURCE IS AN OLDER AND MORE COMMON METHOD BUT IS NOT AS EF...

Page 26: ...tandby modes DIN 6 7 disabled of the CX34 via relay This method of control generally requires a single stage standard heat pump thermostat a installer provided 24 vac transformer and two relays Eg Tyco K10P 11A15 24 w two relay sockets 27E487 The relays can be located in the chiller next to the IPM The transformer can be located in the home near the standard thermostat or other controller 26 ...

Page 27: ...e C parameters C63 is DIN6 AC heating switch mode status 0 OPEN 1 CLOSE C64 is DIN7 AC cooling switch mode status 0 OPEN 1 CLOSE NOTE Using this relay control option will override inputs from the Chiltrix standard wired controller and or Psychrologix controller until DIN 6 7 is restored to its disabled setting See the Psychrologix manual for important additional information if this applies to you ...

Page 28: ...hat is closest to the fan coils Using a third hose connect it to valve B closest to the chiller and leave the open end in the glycol bucket Close the middle ball valve A Close the middle ball valve A The pump should be pumping away from the CX34 chiller Open and close valve A a few times to remove trapped air The pump should be pumping away from the CX34 chiller Run the pump until there are no mor...

Page 29: ...iller The CX34 chiller also has a bleeder valve with a clear tube attached to it located near the brazed plate heat exchanger Fan Coil Flow Balancing Performed at time of commissioning Proper and even flow through each fan coil is important for both heating and cooling This can be done with balancing valves or ball valves installed at each fan coil supply or return pipe This must be done with the ...

Page 30: ...actory parameter settings are entered directly on the LCD screen 5 100 fault records can be stored and retrieved to show the details of each fault that may occur 6 All of the switch input outputs can be directly observed on the LCD control panel making commissioning convenient 7 The LCD display is wall mountable 1 Taskbar shows the current running applications and the time Clicking on the differen...

Page 31: ...pressor Illuminated when the compressor is on Standard Controller cont d Figure 1 2 10 AC temp setting Temperature setting in the air conditioning mode cooling or heating touch the SET TARGET TEMP icon and the keyboard window will pop up as shown in Figure 1 2 then enter the required temperature Use the ENT key will confirm the input Use the DEL key to delete the input and the ESC to cancel the in...

Page 32: ...will allow you to set its valve 17 DHW If the hot water mode is enabled this icon will be lit 18 Cooling If the cooling mode is on in the user setting this icon will be lit 19 Heating If the heating model is on in the user setting this icon will be lit Figure 1 4 20 Boot button Used to execute the boot command operating mode 1 SETTING PASSWORDS Optional and Not Recommended The application is used ...

Page 33: ...ric keypad toggle key for switching to the numeric keyboard Symbol Keyboard toggle key for switching to the symbol keyboard Note The password can be composed of numbers letters symbols etc the factory default password is empty and any 6 characters can be used Note The password can be composed of numbers letters symbols etc the factory default password is 600000 Consider writing the password on the...

Page 34: ...ication Figure 1 7 1 2 USER PARAMETERS Figure 1 7 Operation mode Set the units operation mode Five optional modes cooling heating DHW cooling DHW heating DHW 1 3 SYSTEM Language Default is English Screensaver Sets the screen saver pop up time Buzzer Disables or uses the buzzer sound when the unit has an alarm Date Time you can set the machine date and time Password setting Set the password to ente...

Page 35: ...buzzer sound when the unit has an alarm Date Time you can set the machine date and time Password setting Set the password to enter applications 1 4 Machine Timing Switch The timer functions can be found under Settings then Timer ON OFF To use the timer functions the timer on off must be enabled There are 4 timers labeled timer 1 4 with a mode selection for each timer 35 ...

Page 36: ...Chiltrix Inc www chiltrix com Standard Controller cont d After enabling the timer function touch the X in the top right screen to return to the previous screen 36 ...

Page 37: ... Touch the current time values to change the hour minute and second Touch the day of the week buttons to highlight them and make active There are 5 modes that can be set to use electricity when the rate is lower Only one mode can be set for each timer 1 4 37 ...

Page 38: ...Chiltrix Inc www chiltrix com Standard Controller cont d Program each timer the same way using the touch screen to set the values Timer 3 OFF settings 38 ...

Page 39: ...Chiltrix Inc www chiltrix com Standard Controller cont d Timer 3 Mode settings Timer 4 ON OFF and MODE settings 39 ...

Page 40: ...Chiltrix Inc www chiltrix com Standard Controller cont d Timer 4 ON settings Timer 4 OFF settings 40 ...

Page 41: ...Chiltrix Inc www chiltrix com Standard Controller cont d Timer 4 Mode settings 41 ...

Page 42: ...ouch settings The screen below will appear Touch the mode bar and the screen below will appear Select the mode you want by touching the bar associated with the mode AU Heat Mode should be disabled unless using Dynamic Outdoor Reset p 57 and AU DHW Mode is not used on the CX34 and should be disabled 42 ...

Page 43: ...e selected mode hit the Start button then OK Use this same sequence for all of the modes Always shutdown the chiller and wait for the compressor to turn off before removing the power To shut down a mode touch the shutdown icon Then touch OK 43 ...

Page 44: ...C Target must be set for both heating and cooling modes The target temperature is the EWT entering water temperature return temperature and implies a LWT leaving water temperature supply temperature 9 10F higher For example for heating target if you want a supply temperature of 100F set the AC Target to 90F For a cooling supply temp of 44F the AC target would be 54F The Modbus address can be chang...

Page 45: ...etting P Parameters Touch and hold the lower left side of the main window for more than 3 seconds to enter the factory setting confirmation window as shown in Figure 3 1 press Confirm Factory setting or press Cancel to exit Press here with finger turned sideways for 5 seconds 45 ...

Page 46: ... starts on page 51 For Multi pages click on the Down arrow to display the next page Main menu includes 1 Basic settings P Parameters 2 Communication settings 3 Others 3 2 OTHER FUNCTIONS Initialize the control panel The initialization of the control panel function is used to initialize all parameters in the control panel back to factory settings Figure 3 4 Delete the fault history Deletes all hist...

Page 47: ...r conditioning and Cooling validation 0 valid 1 invalid 0 valid 1 invalid 0 P11 DHW hot water temp hysteresis 2 15 minus hysteresis 2 15 minus hysteresis 2 P12 AC temp hysteresis 2 15 minus hysteresis 2 15 minus hysteresis 2 P30 fan motor Category 0 AC fan 1 EC fan1 2 EC fan 2 0 AC Fan 1 EC Fan1 2 EC 1 P31 Maximum speed of the fan 10 100 100 show1 00 1 10 10 100 100 P32 Heating fan speed control t...

Page 48: ... electric heating 1 the second heat source 0 electric heating 1 the second heat source 0 P57 AC e heater activated ambient temp E2 20 20 20 20 0 P58 2nd heat source starting air temp 30 15 30 15 15 P59 AC anti freezing temperature 15 5 15 5 3 P60 Virus killing interval days 7 99day 7 99 day 99 P61 Start virus killing time 1 24hour 1 24 hour 1 P62 Virus killing holding time 5 99minu 5 99 Min 5 P63 ...

Page 49: ...nable 0 P95 C4 Control the temperature difference 2 8 2 8 5 P96 Compressor Manufacturer Mitsubishi P97 Forced sterilization 0 normal 1 forced Automatically reset to 0 after one execution Normal 0 P98 System parameter recovery 0 normal 1 Recovery automatically reset to 0 after one execution Normal 0 P99 Compressor manufacturer 2 101 P100 Virus Killing Function validation P100 0 Invalid 1 valid Inva...

Page 50: ...ressor Heating Displays compressor heating status c Outdoor fan show the working status of the outdoor fan d Reversing valve electronic expansion valve electrical heating G1 valve and other work status query can be directly observed through this interface Figure 5 1 5 2 Detailed Status Interface C Parameters Click detail in the status query interface to enter the detailed status interface of the m...

Page 51: ...t mode one 1 Defrost mode two Defrost method C17 P06 Status 0 Free cooling valid 1 Free cooling invalid Free cooling 0 valid 1 invalid C18 P07 Status 0 Frequency mode one 1 Frequency mode two Frequency method C19 P08 Status 0 DHW valid 1 DHW invalid 0 DHW valid 1 DHW invalid C20 P09 Status 0 Heating valid 1 Heating invalid AC heating valid 0 valid 1 invalid C21 P10 Status 0 cooling valid 1 cooling...

Page 52: ...f C44 fan type 0 AC fan 1 EC fan 1 2 EC fan 2 0 AC fan 1 EC fan 1 2 EC fan 2 C45 EC fan motor 1 speed 0 3000 0 3000 C46 EC fan motor 2 speed 0 3000 0 3000 C47 water pump types 0 AC Water pump 1 EC Water pump 0 AC Water pump 1 EC Water pump C48 water pump1 speed C4 1 10 10 Show 100 1 10 10 means 100 C49 water pump2 speed 1 10 10 Show 100 1 10 10 means 100 C50 Inductor AC Current value P15 0 50A 0 5...

Page 53: ...dard settings would be as follows Heating set at 30 c 86 F return for radiant for supply temp of 95F or 35 C 95 F return for fan coils or fan coils radiant for supply temp of 105F For cooling mode the standard setting would be 12 C 54 F to get 44 F outlet temperature Detailed settings as follows N0 Meaning Selected temperature range Recommended controller temperature initial setting 1 Cooling retu...

Page 54: ...current fault display as shown in Figure 8 1 the left side shows the fault item the format is fault number On the right side of the three buttons are on a page next page reset click the reset button to reset the current fault Figure 9 1 9 2 FAULT HISTORY Enter the history fault display as shown in Figure 9 2 the left side is the fault item the right side has the previous page the next page and the...

Page 55: ...or solar temp sensor open or short circuit stop compressor E8 AC inlet water temp sensor error AC return water temp sensor open or short circuit stop compressor E9 AC outlet water temp sensor error AC outlet water temp sensor open or short circuit stop compressor E10 DHW temp sensor error DHW temp sensor open or short circuit stop compressor E11 Indoor ambient sensor error Indoor ambient sensor op...

Page 56: ... outlet is too large 1 water flow is too small 2 water switch failure P15 Current limit frequency fault Caused by current limitation at lubricant oil return operation Set P33 6 C F1 voltage protection Power voltage is too high or too low the voltage is normal after the machine to resume operation motherboard detection F2 IPM Fault IPM module is damaged F3 Compressor Drive Fault The compressor cann...

Page 57: ...or walls as it does from a floor And in some cases it works better from the ceiling Why does keeping the operating temperature low matter so much With a fossil fuel burning boiler it doesn t matter Gas propane and oil efficiency does not vary with outdoor temperature But that s not the case with a heat pump Here s why For a real world example at 0F outdoor temperature an air to water heat pump suc...

Page 58: ...ntroller display that will indicate when the AU setting is enabled The AC target will change according to air temp which you can see from controller 1st page Using Chiltrix Dynamic Outdoor Reset Control with V18 Backup Heat External Controller If you are using V18 dynamic backup heat then DO NOT enable Dynamic Outdoor Reset Control in the controller as shown above You will input the P48 P49 settin...

Page 59: ...xture coming out of the air exhaust valve Then close the air exhaust valves See page 30 and 31 for more details 2 Discharge the air from both domestic hot water system and air conditioning water system CXI fan coils have a bleeder valve located near the inlet and outlet ports The CX34 has a bleeder tube attached to the Brazed plate heat exchanger To avoid freezing the heat pump when the air temper...

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Page 61: ...Chiltrix Inc www chiltrix com 61 ...

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