Airxcel ICE CFA1120A Installation & Operation Manual Download Page 10 | Manualshive

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ICE CFA1120A-3360A & CGA3180A I&O Manual 03/2021 Rev.5

Figure 1a. Typical Electrical Schematic for Single Compressor Units

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Summary of Contents for ICE CFA1120A

Page 1: ...er Installation 42 Appendix B Reverse Flow w Economizer Exhaust Hood Installation 43 Installation Operation Manual Vertical Air Conditioners Manufactured By Industrial Climate Engineering Division of...

Page 2: ...the UNIT UPRIGHT Laying it down on its side may cause oil to leave the compressor and breakage or damage to other components 3 TURN ELECTRICAL POWER OFF AT THE breaker or fuse box BEFORE installing o...

Page 3: ...nstructions on the inside of the building adjacent to the thermostat END USER Retain these instructions for future reference Table of Contents Chapter 1 Air Conditioner Description Specifications 1 1...

Page 4: ...l Schematics for Dual Compressor Units 11 Figure 2a Setting the Speed for the Y1 and Y2 Operation for Indoor Motor 14 Figure 2b Second Stage Cooling Speed 14 Figure 3 Output Termination for Indoor Mot...

Page 5: ...veral electrical components improves the air conditioner s reliability andhasLED stoindicateoperatingstatusandfaultconditionstoassisttheservicetechnician Acomplete description of functions of the cont...

Page 6: ...mbient w FCC EFS 3 CCH w Hot Gas Bypass None Note Not all options are available with all configurations Contact your ICE sales representative for configuration details and feature compatibility 17 Ind...

Page 7: ...0156 4 8 CGA3180 Interior Access Return Air Filter 24 x 18 x 2 610 x 457 x 51 81257 4 8 CGA3180 For Optional Fresh Air Hood K 04657 26 x 12 x 1 660 x 305 x 25 92526 2 N A CGA3180 Reverse Flow Exterior...

Page 8: ...being brought into the building the mixed air sensor measures the temperature of the air entering the indoor blower and then modulates the economizer damper to mix the right proportion of cool outsid...

Page 9: ...ion of outside air into the building to provide positive pressurization Field installed on either the left or right hand side of the unit See Appendix A for installation instructions Model Number Fres...

Page 10: ...10 ICE CFA1120A 3360A CGA3180A I O Manual 03 2021 Rev 5 Figure 1a Typical Electrical Schematic for Single Compressor Units...

Page 11: ...11 ICE CFA1120A 3360A CGA3180A I O Manual 03 2021 Rev 5 Figure 1b Typical Electrical Schematic for Dual Compressor Units...

Page 12: ...information to the end user Special features include 2 Stage operation with varying speed control to optimize latent and sensible capacity built in remote communication MODBUS for monitoring and or co...

Page 13: ...e Switch LP Low Pressure Switch Switch to Be Closed for Cooling Operation Switch to Be Connected to R Node 16 24 VAC Power Input to PCB 17 Digital Outputs 24 VAC The PCB Makes and Breaks R RH Reheat E...

Page 14: ...gnal terminations must be used This jumper will be factory installed In replacing the PCB verify the necessary signal and configure the board accordingly Only 2 of the 3 pins should be used for the ne...

Page 15: ...iometer See figure below 3 1 2 1 Set for 0 10V Signal Jumper To Remain On The Appropriate Terminal For Correct Operation 2 Set For PWM Signal Jumper To Remain On The Appropriate Terminal For Correct O...

Page 16: ...The board also allows 15 different MODBUS addresses based on the position of the NET ADDRESS DIP switches The Net Addresses are written in Binary see table below with switch 4 being the least signifi...

Page 17: ...ioning startupsequence to ensure safety and system reliability This document is only valid if the system is used as intended This section defines the manner and method of control of the HVAC system It...

Page 18: ...ws 1 Stage 2 Cooling Request Y2 Input 2 Stage 1 Cooling Request Y1 Input 3 Electric Heat Request W2 Input 4 Dehumidification Request Hum Input 5 Indoor Fan Request G Input Note The priority list above...

Page 19: ...ly CC1 output can achieve partial capacity Both CC1 and CC2 outputs are required to achieve full capacity Request Active Input Active Output Stage 1 Cooling 1 Fixed Compressor Y1 CC1 Partial Capacity...

Page 20: ...peration In the event that the fault occurs a second time on the same call for cooling the system locks out To clear the fault the Cooling request must be cycled or the system must be power cycled Sta...

Page 21: ...as to be configured via MODBUS Once configuration is complete the unit has the capability to function autonomously to maintain the space temperature Discrete Registers Read with Function Code 02 Write...

Page 22: ...Bit 1 60 default 25 represents minutes of allowed MODBUS inactivity before switching to onboard T Stat mode RW 10 Current OFM Speed 16 Bit 0 1023 RO 11 Current IFM Speed 16 Bit 0 1023 RO 12 Anti Shor...

Page 23: ...ht and allow to stand for 24 hours with primary power turned on 2 Attempt to start the compressor after 24 hours 3 If the compressor will not start makes excessive noise or will not pump return the un...

Page 24: ...des of the unit or 120 from the front of the unit Additional clearance is required in high ambient temperatures greater than 120 F 49 C MODEL MIN CLEARANCE AROUND SIDES SINGLE UNIT MIN CLEARANCE BETWE...

Page 25: ...rn Filter Grille for the CFA3180 3240 54 x 21 1 384mm x 546mm 93192 Aluminum Return Filter Grille for the CFA3300 3360 54 x 37 1 384mm x 953mm Additional Items Needed Additional hardware and miscellan...

Page 26: ...e inside wall for applications without duct work Applications using duct work should be designed and installed in accordance with all applicable safety codes and standards ICE strongly recommends refe...

Page 27: ...side of the unit Drill a one inch hole in the shelter wall to match this opening Allow sufficient clearance to run 3 4 conduit through the hole and to the unit 2 Lift the unit into position using an...

Page 28: ...ts may incorporate an internal crankcase heater for compressor protection The crankcase heater must be energized for at least 24 hours prior to starting the compressor Scrollcompressors likeseveraloth...

Page 29: ...use serious injury and damage the panel DANGER NEVER open all four hinges simultaneously The panel should ONLY be opened by using the two hinges on the left side OR the two hinges on the right side Hi...

Page 30: ...Controller Specification sheet Wire the two air conditioners to the Lead Lag Controller according to the wiring diagram on the specification sheet Remote Signalling Terminals 5 7 N O and 6 7 N C on th...

Page 31: ...ition to the control of HVAC equipment CommStat Touch includes the RemoteLink IPv4 IPv6 communication module to provide status information alarm notifications set point adjustment and remote HVAC conf...

Page 32: ...hing should operate at this time 3 Set the time delay in the control box to three minutes See Section 1 6 4 Slowly lower the thermostat s cooling set point temperature until the switch closes The indo...

Page 33: ...portation However the great majority of problems result from installation errors If you experience difficulties with the unit please review the installation steps in Chapter 2 Much time can be saved b...

Page 34: ...refrigerant circuit 2 Check for blockage or restriction especially filter drier and capillary tube assembly 3 Refrigerant overcharge following field service 3 Evacuate and recharge to factory specifi...

Page 35: ...ompressor terminal to test the motor windings A short circuit at high voltages indicates a motor defect Do not do this test under vacuum 5 On single phase models check the capacitor by substitution 5...

Page 36: ...ged door or from the return grille on the inside of the building Evaporator If the evaporator becomes clogged or dirty it may be cleaned by careful vacuuming or with a com mercial evaporator cleaning...

Page 37: ...t or any other material charges 2 Damages caused by shipping accident abuse negligence misuse fire flood or Acts of God 3 Damages caused by operating or staging the unit in a corrosive environment 4 D...

Page 38: ..._________ Address ________________________________________State________________________ City ___________________________________________ ICE Air conditioner Model No __________________________________...

Page 39: ...1 L2_______V L1 L3 ________V L2 L3______V L1 L2 L1 L3 L2 L3 3 Avg Voltage _______________ Max Deviation from avg voltage ______________volts Voltage imbalance 100 x Max Deviation avg Voltage _________...

Page 40: ...________ ________ Evap Leaving Air WB Temp ________ ________ Heater Contactor Amps L1 ________ ________ Heater Contactor Amps L2 ________ ________ Heater Contactor Amps L3 ________ ________ E Cooling...

Page 41: ...or Amps L3 ________ ________ Notes _________________________________________________________________________ _________________________________________________________________________ _________________...

Page 42: ...LE DRAWN BY APPROVED BY TITLE DATE DRAWING NUMBER TOLERANCES EXCEPT AS NOTED DECIMAL FRACTIONAL ANGULAR This drawing contains confidential information of Marvair a Division of AIRXCEL Inc This informa...

Page 43: ...ottom front panel To access the hood remove the screws that hold the front panel The air flow can be adjusted from no 0 fresh air to approximately 15 of rated air flow of fresh air in 5 increments The...

Page 44: ...THE HOOD ASSY ITEM 1 B PLACE HOOD ASSY ITEM 1 ON TOP OF UNIT WITH SLOTTED VENTS TOWARDS THE FRONT OF THE UNIT C ALIGN HOLES IN THE HOOD ASSY FLANGES WITH PREDRILLED HOLES IN THE TOP PANEL OF UNIT ITE...

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