Installation Instructions / User`s Manual NAXA00201DB
Contents
1. ash Code 9 Low Voltage Control circuit lt 17 VAC Yellow ALERT Welded Contactor Flash Code 8 2 TNO REE Pewee ee eR BJoOoORONs ea ORFs ts wpe ejo 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 Low refrigerant charge Evaporator blower is not running Check blower relay coil and contacts Check blower motor capacitor Check blower motor for failure or blockage Check evaporator blower wiring and connectors Check indoor blower contro board Check thermostat wiring for open circuit Evaporator coil is frozen Check for low suction pressure Check for excessively low thermostat setting Check evaporator airflow coil blockages or return air filter Check 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 Liquid line restriction filter drier blocked if present in system Thermostat is malfunctioning Check thermostat sub base or wiring for short circuit Check thermostat installation location level Comfort Alert Module failure High head pressure Check high pressure switch if present in system Check if sy2. Run capacitor has failed Open circuit in compressor start winding or connections Compressor start winding is damaged Check compressor motor winding resistance 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 Check compressor motor winding resistance Compressor contactor has failed closed Thermostat demand signal not connected to module 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 FURNACE TO GENERIC HP WIRING REFER TO UNITS If REQUIRED 8MPV D SERIES OR NEWER DAUGHTER OUTDOOR SENSOR 8MPV C SERIES 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 TSTATO406 or TSTATO407 Thermostats for proper operation The Outdoor Sensor can be hooked directly to the NAXA00201DB Daughter Board or the TSTATO406 or TSTATO407 Thermostats fo
3. 997 060180 7 International P X _ Products Comfort 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 TSTATO406 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 Ct JE Sa 1 G foc Viua i 0 ind 14 je o hd t w mi kad 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 correspo
4. e 145v supply should be used NOTE A separate 115v supply should be used NOTE When using a humidifier on a HP connect to hot water NOTE When using a humidifier on a HP connect to hot water RN 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 rs WS yild N E ea MEL d be R a 5 a te A 2 Seve i 4 mud RIZ 5 RI A j p Drill Holes 2 places Drill Holes 2 places CURSE SSaucoe YASS OOF C8 e9tl International Comfort Products Inc 482 06 5302 00 02 09
5. ional Comfort Products Inc 2 482 06 5302 00 02 09 997 060180 7 The Comfort Alert Module will transmit 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 Green POWER Module has power Red TRIP Thermostat demand signal Y is present but the compressor is not running Yellow ALERT Flash Code 1 Long Run Time Compressor is running extremely long run cycles Yellow ALERT Flash Code 2 System Pressure Trip Discharge or suction pressure out of limits or compressor overloaded Yellow ALERT Flash Code 3 Short Cycling Compressor is running only briefly Yellow ALERT Flash Code 4 Locked Rotor Yellow ALERT Flash Code 5 Open Circuit Open Start Circuit Open Run Circuit Current only in start circuit ellow ALERT
6. nding outputs in areas shown by X International Comfort Products Inc 1 482 06 5302 00 02 09 997 060180 7 Daughter 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 Q 24 VAC thermostat output P3 Pin 2 W 24 VAC thermostat output P3 Pin 3 G 24 VAC thermostat output P3 Pin 4 ave 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 Pin5 G 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 Temperatu
7. r 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 OI Ee ANCOIL c Ww inputs G REQUIRED re OPTIONAL THERMOSTAT OUTDOOR SENSOR 8MPV C SERIES OR NEWER 9MPV D SERIES OR NEWER C We wi H OB Y2 er a Be PDT DD GND a Z Notes The L Output from the Heat Pump or A C Unit can be wired to either the NAXA00201DB Daughter Board or the TSTATO406 or TSTATO407 Thermostats for proper operation The Outdoor Sensor can be hooked directly to the NAXA00201DB Daughter Board or the TSTAT0406 or TSTATO407 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 International Comfort Products Inc 4 482 06 5302 00 02 09 997 060180 7 VARIABLE SPEED DEHUM REQUIRED C 24 VAC HUM DEHUM SPDT RELAY SPDT RELAY SPDT RELAY t r i t i HUMIDIFIER HUMIDIFIER HUMIDIFIER HUMIDIFIER p 15v E f tal 16 BEII NOTE A separate 445v supply should be used NOTE A separate 145v supply should be used NOTE A separat
8. re Sensor P5 Pin 2 OD Remote Outdoor Temperature Sensor input P5 Pin 3 Not used 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 LEDS 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 Internat
9. stem 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 f low pressure switch present in system check Flash Code 1 information 1 Thermostat demand signal intermittent 2 Time delay relay or contro 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 ONalTs BONS 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 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
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