Carrier PTV, 50PTH specifications Alarm Relay Contacts

Page 18

BM

(ECM)

SW1
SW2
SW3
SW4
SW5
SW6
SW7
SW8
SW9
OFF	ON

ECM

INTERFACE

BOARD

18

LEGEND

AL	— Alarm Relay Contacts
ASTAT	— Aquastat
BM	— Blower Motor
BR	— Blower Relay
CB	— Circuit Breaker

CC— Compressor Contactor

CO	— Sensor, Condensate Overflow
COMPR	— Compressor
DTS	— Discharge Temp Switch
ECM	— Electronically Commutated Motor
FP1	— Sensor, Water Coil Freeze Protection
FP2	— Sensor, Air Coil Freeze Protection
HP	— High-Pressure Switch
HWG	— Hot Water Generator
JW1	— Jumper, Alarm
LOC	— Loss of Charge Pressure Switch
MV	— Motorized Valve
NEC	— National Electrical Code
P1	— Field Wiring Terminal Block
RVS	— Reversing Valve Solenoid
TRANS	— Transformer

Field Line Voltage Wiring

Field Low Voltage Wiring

Printed Circuit Trace

Optional Wiring

Relay/Contactor Coil

Condensate Pan

Solenoid Coil

Temperature Switch

Thermistor

Ground

Wire Nut

BM (ECM)

		J1
		Y
W	R	S1
W	R	CFM
		SW1

O						SW2
O	G					SW3
						SW4
						SW5
Y2	G					SW6
Y2	G					SW7
						SW7
						SW8
Y1	G					SW9
Y1	G						OFF	ON
							OFF	ON
G	G					G	DEHUM
		TB1
R	C	Y2 Y1 G	O	W	C	R DH AL1 A	A	AL1

ECM INTERFACE BOARD LAYOUT

NOTES:

1.Compressor and blower motor thermally protected internally.

2.All wiring to the unit must comply with NEC and local codes.

3.FP1 thermistor provides freeze protection for water. When using antifreeze solutions, cut JW3 jumper.

4.Typical Aquazone™ thermostat wiring shown. Refer to thermostat installation instructions for wir- ing to the unit. Thermostat wiring must be Class 1 and voltage rating equal to or greater than unit supply voltage.

5.24-v alarm signal shown. For dry alarm contact, cut JW1 jumper and dry contact will be available between AL1 and AL2.

6.Transformer secondary ground via Complete C board standoffs and screws to control box. (Ground available from top two standoffs as shown.)

7.Aquastat is field-supplied and must be wired in series with the hot leg to the pump. Aquastat is rated for voltage up to 277 v.

8.Place jumpers on 2 and 3, ECM board, when dehumidification mode is used.

Fig. 19 — Wiring of 50PTH,PTV,PTD026-072 Units with Complete C Controller, Three Phase (460 V)

Image 18

Contents Contents Safety ConsiderationsInstallation GeneralPhysical Data 50PTH, PTV, PTD026-072 Units 50PTH026-072 Dimensional Data Typical Installation 50PTH Unit Aux Electric Heat Disconnect50PTV Dimensional Data 50PTD Dimensional Data Side Discharge Back DischargeRotate Install Condensate DrainMount the Unit Move to SideHorizontal Unit Pitch Trap Condensate DrainTypical Ground-Water Piping Installation Drains field-installedWire Field Power Supply Water Quality GuidelinesMetal Hose Minimum Bend Radii 50PTH,PTV,PTD Electrical Data Alarm Relay Contacts Sensor, Water Coil Freeze ProtectionRVS TransECM BM ECM Alarm Relay Contacts Discharge Temp Switch Relay/Contactor Coil A50-8363 A50 8364LWT SPTA50-8571 Wshp Open ControlRnet Wiring Specifications Field-Supplied Sensors for Wshp Open ControllerSPT Sensors Wire Terminal Wire Field ControlsRnet Wiring A50-8443A50-8441 A50-8141A50-7764tf A50-8442Heating Settings Cooling SettingsDehumidificaton Mode Settings CFM Adjust SettingsBlower Performance Data PRE-START-UP Wshp Open Fan Only / Low Fan and Med Fan AirflowWshp Open High Fan Airflow Complete C Control Jumper Settings Deluxe D Control Jumper SettingsField Selectable Inputs Humidistat/Dehumidistat Logic Deluxe D DIP Switch Settings DIP Switch Block S2 Accessory 1 Relay OptionsDIP Switch Block S2 Accessory 2 Relay Options Units with Modulating Hot Water Reheat HWR OptionMode Input Output HWR Operating ModesA50-8145 Water Out START-UPOperating Limits Operating Limits 50PTH, PTV, PTD UnitsUnit Start-Up Cooling Mode Unit Start-Up Heating ModeWater Temperature Change Through Heat Exchanger Suction Discharge Super Sub Water Air Temp Unit Start-Up with Wshp Open Controls A50-8444PTD Unit 50PTH, PTV Water Temperature F GPMCoaxial Water Pressure Drop 026 038 049Operation Approximate Fluid Volume gal Per 100 Ft of PipeAntifreeze Percentages by Volume Units with Aquazone Complete C ControlUnits with Wshp Open Multiple Protocol Page Page LED Fault Description Code Complete C Control LED Code Fault DescriptionsLED Status Description of Operation Alarm Relay Complete C and Deluxe D Board System TestAlarm Relay Aquazone Deluxe D Control LED IndicaService Air Coil Fan Motor Removal TroubleshootingRefrigerant Charging Replacing the Wshp Open Controller’s Bat70.0 90.080.0 KOhm 60.0 50.0Page ECM Troubleshooting Fault Description SolutionECM Pin Connectors A50-8448ECM Troubleshooting Flow Diagram A50-8447Wshp Troubleshooting Fault Heating Cooling Possible Cause SolutionGood Practices Over/Under Voltage Code 7 Auto ResettingNo Fault Code Shown Performance MonitorLow Suction Pressure Temperature in HeatingHigh Head Pressure Low Discharge AirStatus Appendix a Wshp Open Screen ConfigurationAlarm Status SensorSystem Settings Appendix a Wshp Open Screen ConfigurationMaintenance ConfigurationSchedule Appendix a Wshp Screen Open Configuration ServiceTest Configuration Service Point Name Password Editable Range Default LevelScreen Name Alarm Page Page Copyright 2010 Carrier Corporation 50PTH,PTV,PTD START-UP Checklist II. START-UPA50-8449 Heating Cycle AnalysisCooling Cycle Analysis A50-8450