Carrier 50PEC09-18 specifications A50-8329, Night Low Limit Switch, Return Air Sensor

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DELUXE D

a50-8329

		DELUXE D
		LEGEND
AL	—	Alarm Relay Contacts
BM	— Blower Motor
BR	—	Blower Relay
CAP	—	Capacitor
CB	—	Circuit Breaker
CO	— Sensor, Condensate Overflow
CR	—	Compressor Relay
DM	— Damper Motor
FP1	— Sensor, Water Coil Freeze Protection
FP2	— Sensor, Air Coil Freeze Protection
HP	—	High-Pressure Switch
JW1	— Jumper Wire for Alarm
LOC	— Loss of Charge Pressure Switch
NLL	— Night Low Limit Switch
PB	—	Power Terminal Block
RAS	—	Return Air Sensor
RVS	—	Reversing Valve Solenoid
TRANS	—	Transformer
WV	— Water Valve

----------Field Line Voltage Wiring

Field Low-Voltage Wiring Printed Circuit Trace

*Optional wiring.

>>

Relay/Contactor Coil

Solenoid Coil

Thermistor

Circuit Breaker

Relay Contacts-N.O.

Switch-Temperature

Switch-High Pressure

Switch-Low Pressure

Ground

Wire Nut

Mate-N-Lock

PEC09-18

NOTES:

1.Compressor and blower motor thermally pro- tected internally.

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

3.Transformer is wired to 115-V (WHT) lead for 115/1/60 units, 265-V (BRN) lead for 265/1/60 units, 240-V (ORG) lead for 240/1/50 units, or 208-V (RED) lead for 208/1/60 units.

Rewire transformer L1 connection if voltage is 230-1-60 or 220-1-50, insulate unused lead.

4.FP1 thermistor provides freeze protection for WATER. When using ANTI-FREEZE solutions, cut JW3 jumper.

5.Refer to Microprocessor Control Installation, Application, and Operation manual for control wiring to the unit. Low voltage wiring must be “class 1” and voltage rated equal to or greater than unit supply voltage.

6.Factory-cut jumper (JW4). Dry contact will be available between AL1 and AL2.

7.Transformer secondary ground via Deluxe D board standoffs and screws to control box. (Ground available from top 2 standoffs as shown.)

Fig. 20 — 50PEC Unit Manual or Auto Changeover and Deluxe D Controller

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Contents Safety Considerations ContentsInstallation General50PEC Physical Data Water OUT OUTCondensate A50-833522.2 OD WaterA50-8337 A50-8338Damper Opening A50-833950PEC18 Bottom Return Cabinet Dimensions Right Hand Piping 50PEC09-15 Bottom Return Cabinet Dimensions Left Hand Piping 50PEC18 Bottom Return Cabinet Dimensions Left Hand Piping 50PEC09-15 Front Return Cabinet Dimensions Right Hand Piping 50PEC18 Front Return Cabinet Dimensions Right Hand Piping A50-8345 50PEC09-15 Front Return Cabinet Dimensions Left Hand Piping50PEC18 Front Return Cabinet Dimensions Left Hand Piping A50-8347 Optional Autoflow Valve Motorized 50PEC09-15 Chassis Dimensions Front ReturnOptional Disconnect Box Autoflow Optional FusedOptional Motorized Water Valve Optional Autoflow50PEC18 Chassis Dimensions Front Return Mount Unit Wire Electrical Connections09-18 A50-8452A50-8327.eps Sensor, Water Coil Freeze Protection A50-8328Night Low Limit Switch A50-8329Return Air Sensor Blower Motor Wiring NLL PremierLink Controller Applications with Complete C Control A50-8355 8354 A50LWT 8353 Wshp Open Control A50-8380Electrical Data 50PEC Units Wire Low Voltage ConnectionsA50-7467tf A50-8441Recommended Thermostat Wire Sizes Field-Supplied Sensors for Wshp Open ControllerSPT Sensors Rnet Wiring Specifications Install Supply and Return PipingRnet Wiring A50-8443Temporary Connection for Flushing System Piping PRE-START-UPMin Ambient Air Rated Ambient Air Max Ambient Air Air and Water LimitsMin Entering Air Rated Entering Air, dry bulb/wet bulb Max Entering Air, dry bulb/wet bulbWater Quality Guidelines Deluxe D Control Jumper Settings See , 20, Complete C Control Jumper Settings See , 18,DIP Switch Block S2 Accessory 1 Relay Options Field Selectable InputsSTART-UP DIP Switch Block S2 Accessory 2 Relay OptionsUnit Start-Up/Cooling Operating LimitsBACview6 Display Interface Unit Start-Up with Wshp Open ControlsGPM Coaxial Water Pressure DropAntifreeze Percentages by Volume Approximate Fluid Volume gal Per 100 ft of PipeOperation Units with Aquazone Complete C ControlUnits with Wshp Open Multiple Protocol Page Complete C and Deluxe D Board System Test Aquazone Deluxe D Control LED Indica Complete C Control LED Code and Fault DescriptionsService Gravity Flow Method Refrigerant Charging TroubleshootingAir Coil Fan Motor Removal Replacing the Wshp Open Controller’s BatFault Heating Cooling Possible Cause Solution TroubleshootingUnit Does Not Operate Alarm Status Appendix a Wshp Open Screen ConfigurationStatus SensorMaintenance Appendix a Wshp Open Screen ConfigurationSystem Settings ConfigurationSchedule Optimal StartAppendix a Wshp Screen Open Configuration ServiceTest Point Name Password Editable Range Default Level Configuration ServiceAlarm High Alarm LimitPage Page Copyright 2009 Carrier Corporation II. START-UP 50PEC Unit START-UP ChecklistCooling Cycle Analysis Heating Cycle AnalysisA50-8453 A50-8454