Installation Instructions / User`s Manual
Contents
1. Cc W2 R wi H R w C W2 R Wi H 8MPV C SERIES OR NEWER 9MPV D SERIES OR NEWER 8MPV C SERIES OR NEWER 9MPV D SERIES OR NEWER REQUIRED 1 STAGE HP WITH 1 STAGE FURNACE 1 STAGE HP WITH VARIABLE SPEED FURNACE DAUGHTER BOARD TO FURNACE TO GENERIC HP WIRING REFER TO UNITS I O MANUAL FOR SPECIFICS PETEN OPTIONAL 2 STAGE HP WITH 2 STAGE VARIABLE SPEED FURNACE OUTDOOR SENSOR 8MPV OUTDOOR SENSOR ERIES OR NEWER 9MPV D SERIES OR NEWER Notes The L Output from the Heat Pump or A C Unit can be wired to either the NAXA00201DB Daughter Board or the TSTAT0406 or TSTAT0407 Thermostats for proper operation The Outdoor Sensor can be hooked directly to the NAXA00201DB Daughter Board or the TSTAT0406 or TSTAT0407 Thermostats for proper operation A pigtail wiring harness is supplied with the NAXA00201DB Daughter Board for connection to its L input A pigtail wiring harness is supplied with the NAXA00201DB Daughter Board for connection to its OD inputs 8MPV OUTDOOR SENSOR SERIES OR NEWER 9MPV D SERIES OR NEWER BOARD TO FANCOIL TO GENERIC AC WIRING REFER TO UNITS I O MANUAL FOR SPECIFICS REQUIRED UGHTER 1 STAGE AC WI2. P5 Pin 4 Not used The following connections are provided in the P8 Connector Optional Connection for the Comfort Alert ALARM Output P8 Pin 1 Not Used No Connect P8 Pin 2 Not Used No connect P8 Pin 3 D L fault input from Comfort Alert Module Status LED Operation The LED labeled LED5 is a status LED that will provide a heart beat blink of this LED to indicate that the NAXA00201DB communicating daughter board control is powered and working properly Communication LED Operation The LED labeled LED3 will be illuminated for 100mS each time a successful communications packet is received from the TSTAT0406 or TSTAT0407 communicating thermostat Thermostat Call Output LED s Operation There is an LED Output for each thermostat output from the daughter board The corresponding LED will illuminate any time the associated thermostat output is active LED 8 illuminates when O Output is energized LED 7 illuminates when W Output is energized LED 6 illuminates when G Output is energized LED 4 illuminates when Y Output is energized LED 9 illuminates when H Output is energized LED 1 illuminates when w2 Output is energized LED 2 illuminates when Y2 Output is energized L Input from Comfort Alert Module to Daughter Board International Comfort Products Inc 2 482 06 5302 00 02 09 997 060180 7 The Comfort Alert Module will t
3. the NAXA00201DB Daughter Board for connection to its OD inputs International Comfort Products Inc 4 482 06 5302 00 02 09 997 060180 7 SUPPLEMENTAL HUMIDIFIER CONNECTION VARIABLE SPEED DEHUM REQUIRED AC WITH FANCOIL PSC FURNACE HUMIDIFIER HP WITH FANCOIL HUMIDIFIER AC WITH VARIABLE SPEED FURNACE HUMIDIFIER VARIABLE SPEED FANCOIL SPP VARIABLE SPEED THERMOSTAT ONLY THERMOSTAT FANCOIL ONLY THERMOSTAT HP WITH VARIABLE SPEED FURNACE HUMIDIFIER Pp c i w 24 VAC HUM O H DEHUM SPDT RELAY SPDT RELAY SPDT RELAY HUMIDIFIER HUMIDIFIER a HUMIDIFIER T h s A H rs NOTE A separate 115v supply should be used NOTE A separate 115v supply should be used NOTE A separate 115v supply should be used NOTE When using a humidifier on a HP connect to hot water EE NAXA00201DB Drill Template 1 Cut Template out along dotted lines 2 Tape template over the sheet metal area to be drilled 3 Drill four holes using a 32 drill bit 1160 through the four dark circles denoted on the template 4 Remove the template from the drilled area 5 Mount the NAXA00201DB Control with four 6 sheet metal screws included in the kit Note Ensure that are to be drilled is clear of any gas lines or wiring harnesses prior to drilling HUMIDIFIER Fs TE NOTE A separat
4. 997 060180 7 International Comfort IGP Installation Instructions User s Manual NAXA00201DB Communicating Daughter Board The NAXA00201DB daughter board control allows for using 4 existing thermostat wires in an existing finished home to communicate with the TSTAT0406 amp TSTAT0407 thermostats The daughter board translates the communicated heating and cooling needs and sends the normal discrete thermostat outputs to the indoor and outdoor equipment as needed The NAXA00201DB Daughter Board must be used in conjunction with the TSTAT406 or TSTAT0407 Communicating Thermostat for proper operation The daughter board provides a two wire RS485 ModBus communication link and 24VAC to the communicating thermostat via a 4 wire connection scheme L input from the Comfort Alert Module a sensor input for the remote outdoor sensor seven thermostat 24VAC outputs W G Y 0 W2 Y2 H and status amp communication LED s NAXA00201DB Daughter Board Kit includes the following NAXA00201DB Daughter Board 6 6 sheet metal mounting screws L Input Pigtail wire harness amp wire nut Remote outdoor sensor pigtail wire harness amp wire nuts Installation instructions 48206530200 VA Rating of 4 8 200mA at 24 VAC SPDT NO Panel Mount Relay with 24VAC Coil Note Output LED s illuminate next to corresponding outputs in areas shown by xf International Comfort Products Inc 1 482 06 5302 00 02 09 997 060180 7 D
5. TH 1 STAGE FANCOIL OPTIONAL 1 STAGE AC WITH VARIABLE SPEED FANCOIL 2 STAGE ELECTRIC THERMOSTAT HEAT DAUGHTER C 2 STAGE AC WITH VARIABLE SPEED FANCOIL 2 STAGE ELECTRIC THERMOSTAT DAUGHTER C R C R Ww Y G L OD OD mE DX DX OUTDOOR SENSOR DX Cc w2 R wi H OB Y2 Yi a T At B GND GND C w2 R Ww H Y G OD X OD DX OUTDOOR SENSOR REQUIRED 1 STAGE HP WITH 1 STAGE FANCOIL 1 STAGE ELECTRIC HEAT THERMOSTAT W2 FANCOIL Cc 1 STAGE HP WITH VARIABLE SPEED FANCOIL 2 STAGE ELECTRIC THERMOSTAT W2 HEAT DAUGHTER W2 FANCOIL w2 DAUGHTER BOARD TO FANCOIL TO GENERIC HP WIRING REFER TO UNITS I O MANUAL FOR SPECIFICS iiis OPTIONAL 2 STAGE HP WITH VARIABLE SPEED FANCOIL 2 STAGE ELECTRIC THERMOSTAT HEAT DAUGHTER FANCOIL yY G Notes The L Output from the Heat Pump or A C Unit can be wired to either the NAXA00201DB Daughter Board or the TSTAT0406 or TSTAT0407 Thermostats for proper operation The Outdoor Sensor can be hooked directly to the NAXA00201DB Daughter Board or the TSTAT0406 or TSTAT0407 Thermostats for proper operation A pigtail wiring harness is supplied with the NAXA00201DB Daughter Board for connection to its L input A pigtail wiring harness is supplied with
6. ash Code 1 information Obes t wns re aloe NOM tReet twee ee ee NValoMAwWNHe e A Status LED Troubleshooting Information Yellow ALERT Flash Code 3 Short Cycling Compressor is running only briefly Yellow ALERT Flash Code 4 Locked Rotor 1 Thermostat demand signal intermittent 2 Time delay relay or control board defective 3 If high pressure switch present go to Flash Code 2 information 4 If low pressure switch present go to Flash Code 1 information Run Capacitor has failed Low line voltage contact utility if voltage disconnect is low Excessive liquid refrigerant in compressor Compressor bearings are seized Measure compressor oil level Yellow ALERT Flash Code 5 Open Circuit Outdoor unit power disconnected Compressor circuit breaker or fuse s open Compressor contactor has failed open Check compressor contactor wiring and connectors Check for compressor contactor failure burned pitted or open Check wiring and connection between supply and compressor Check for low pilot voltage at compressor contactor coil 4 High pressure switch is open and requires manual reset 5 Open circuit in compressor supply wiring or connections 6 Unusually long compressor protector reset time due to extreme ambient temperature Compressor windings are damaged Check compressor motor winding resistance eo GEN S SR Ns N Yellow ALERT Flash Code 6 Open Start Circuit R
7. aughter Board Terminals amp Connections See wiring diagrams for proper wiring and installation The following connections are provided in the P2 terminal block Power and Communication Connections to Communicating Thermostat P2 Pin 1 R 24VAC hot power connection for communicating thermostat P2 Pin 2 GND Ground connection for communicating thermostat P2 Pin 3 DX DX connection to the A Terminal on the communicating thermostat P2 Pin 4 DX DX connection to the B Terminal on the communicating thermostat The following connections are provided in the P3 terminal block Outputs to the HVAC Equipment P3 Pin 1 O 24 VAC thermostat output P3 Pin 2 W 24 VAC thermostat output P3 Pin 3 G 24 VAC thermostat output P3 Pin 4 y 24 VAC thermostat output P3 Pin5 Not Used 24 VAC thermostat output The following connections are provided in the P4 terminal block Outputs to the HVAC Equipment P4 Pin 1 H 24 VAC thermostat output P4 Pin 2 W2 24 VAC thermostat output P4 Pin 3 Y2 24 VAC thermostat output P4 Pin 4 R 24 VAC system power input P4 Pin 5 C 24 VAC system common input The following connections are provided in the P5 Connector Optional Location for the Outdoor Sensor Hook up P5 Pin 1 OD Ground for Remote Outdoor Temperature Sensor P5 Pin 2 OD Remote Outdoor Temperature Sensor input P5 Pin 3 Not used
8. e 115v supply should be used NOTE When using a humidifier on a HP connect to hot water MN eget J ata 2 m E F R SIT ae R31 i x0 3 exa TOL Drill Holes 2 places Drill Holes 2 places Ins 553400V Yy LSS OOb f8 v9LI International Comfort Products Inc 482 06 5302 00 02 09
9. ransmit the active fault code The Comfort Alert or thermostat does not have any effect on operation of the equipment during a Comfort Alert fault The Comfort Alert fault output can be wired directly to the daughter board or communicating thermostat When the Comfort Alert Module is wired to the L input of the daughter board it will recognize the fault output after it has been active for 10 seconds After the daughter board has recognized the active fault from the Comfort Alert Module the daughter board will forward the fault information to the communicating thermostats via the communication wires The communicating thermostat will then display the fault code as defined COMFORT ALERT MODULE FAULT CODES Status LED Green POWER Status LED Description Module has power Status LED Troubleshooting Information Supply voltage is present at module terminals Red TRIP Thermostat demand signal Y is present but the compressor is not running Compressor protector is open Check for high head pressure Check compressor supply voltage Outdoor unit power disconnect is open Compressor circuit breaker or fuse s is open Broken wire or connector is not making contact Low Pressure switch open if present in system Compressor contactor has failed open Yellow ALERT Flash Code 1 Long Run Time Compressor is running extremely long run cycles Low refrigerant charge Evaporator blower is not running heck blo
10. un capacitor has failed Open circuit in compressor start winding or connections Compressor start winding is damaged Check compressor motor winding resistance epale ellow ALERT ash Code 7 Open Run Circuit Current only in start circuit n lt ellow ALERT ash Code 9 Low Voltage Control circuit lt 17 VAC n lt 1 Open circuit in compressor run wiring or connections Check wiring and connectors between supply and the compressor R terminal 2 Compressor run winding is damaged t Check compressor motor winding resistance Yellow ALERT Welded Contactor 1 Compressor contactor has failed closed Flash Code 8 2 Thermostat demand signal not connected to module 1 Control circuit transformer is overloaded 2 Low line voltage contact utility if voltage at disconnect is low Check wiring connections International Comfort Products Inc Flash Code number corresponds to a number of LED flashes followed by a pause then repeated TRIP and ALERT LED s flashing at the same time means control circuit voltage is too low for operation 482 06 5302 00 02 09 997 060180 7 REQUIRED 1 STAGE AC WITH 1 STAGE FURNACE THERMOSTAT DAUGHTER FURNACE C 1 STAGE AC WITH VARIABLE SPEED FURNACE DAUGHTER BOARD TO FURNACE TO GENERIC AC WIRING REFER TO UNITS I O MANUAL FOR SPECIFICS interes OPTIONAL 2 STAGE AC WITH 2 STAGE VARIABLE SPEED FURNACE THERMOSTAT
11. wer relay coil and contacts heck blower motor capacitor heck blower motor for failure or blockage heck evaporator blower wiring and connectors heck indoor blower control board heck thermostat wiring for open circuit vaporator coil is frozen heck for low suction pressure heck for excessively low thermostat setting heck evaporator airflow coil blockages or return air filter heck ductwork or registers for blockage Faulty metering device Check TXV bulb installation size location and contact Check if TXV fixed orifice is stuck closed or defective Condenser coil is dirty mMmQa0o0o00a0aq oaao Thermostat is malfunctioning Check thermostat sub base or wiring for short circuit Check thermostat installation location level Comfort Alert Module failure Liquid line restriction filter drier blocked if present in system Yellow ALERT Flash Code 2 System Pressure Trip Discharge or suction pressure out of limits or compressor overloaded Status LED Status LED Description High head pressure Check high pressure switch if present in system Check if system is overcharged with refrigerant Check for non condensable in system Condenser coil poor air circulation dirty blocked damaged Condenser fan is not running Check fan capacitor Check fan wiring and connectors Check fan motor for failure or blockage Return air duct has substantial leakage If low pressure switch present in system check Fl
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