a50-8440

Deluxe D

15

 

 

 

LEGEND

AL

Alarm Relay Contacts

P1

Field Wiring Terminal Block

BM

Blower Motor

RVS

Reversing Valve Solenoid

BMC

Blower Motor Capacitor

TRANS

Transformer

BR

Blower Relay

TXV

Thermostatic Expansion Valve

CB

Circuit Breaker

 

 

 

 

 

 

 

 

 

 

 

Field Line Voltage Wiring

CC

Compressor Contactor

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Field Low Voltage Wiring

CO

Sensor, Condensate Overflow

 

 

 

 

 

 

 

 

 

 

 

FP1

Sensor, Low Temperature Protection, Water Coil

 

 

 

 

 

 

 

 

 

 

 

Printed Circuit Trace

FP2

Sensor, Low Temperature Protection, Air Coil

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Optional Wiring

HP

High-Pressure Switch

 

 

 

 

 

 

 

 

 

 

 

HPWS — High-Pressure Water Switch

 

 

 

 

 

 

 

 

 

 

 

Relay/Contactor Coil

JW1

Clippable Field Selection Jumper

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LOC

Loss of Charge Pressure Switch

 

 

 

 

 

 

 

 

 

 

 

 

LON

Local Operating Network

 

 

 

 

 

 

 

 

 

 

 

Condensate Pan

MV

Motorized Valve

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MVES

Motorized Valve End Switch

 

 

 

 

 

 

 

 

 

 

 

Solenoid Coil

NEC

National Electrical Code

 

 

 

 

 

 

 

 

 

 

 

 

*Optional Wiring.

 

 

 

 

 

 

 

 

 

 

 

Temperature Switch

 

 

 

 

 

 

 

 

 

 

 

Thermistor

Ground

Wire Nut

Relay Contacts - N.C.

Relay Contacts - N.O.

Low Pressure Switch

High Pressure Switch

Splice Cap

Circuit Breaker

NOTES:

1.Compressor and blower motor thermally protected internally.

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

3.Transformer is wired to 460-v BLK/RED lead for 460-3-60 units. Trans- former is energy limiting or may have circuit breaker.

4.FP1 thermistor provides low temperature protection for water. When using antifreeze solutions, cut JW3 jumper.

5.Refer to microprocessor control, LON, thermostat installation instruc- tions for wiring to the unit. Wire “N01” from LON to “Y1” Deluxe D when motorized valve is not used. Thermostat wiring must be Class 1 and voltage rating equal to or greater than unit supply voltage.

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

7.Transformer secondary ground via green wire with yellow stripe from “C” terminal to control box.

8.Blower motor is factory wired for medium and high speeds. For any other combination of speeds, attach black wire to the higher of the two desired speed taps at the motor, and attach the blue wire to the lower of the two desired speed taps.

9.Blower motor is factory wired for high and low speeds. No other combi- nation is available.

10.Optional LON wires. Only connect if LON connection is desired at the wall sensor.

11.The 460-v units using an internal secondary pump will require a neutral wire from the supply side in order to feed the accessory with 265-v.

Fig. 17 — 50PCH,PCV units with Deluxe D and LON Controller (460 V)

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Carrier 50PCH specifications A50-8440, National Electrical Code Optional Wiring Temperature Switch

50PCH specifications

The Carrier 50PCH is a cutting-edge series of air-cooled chillers designed to deliver exceptional cooling performance in a wide range of commercial applications. Engineered with efficiency and reliability in mind, the 50PCH stands out for its innovative technologies and robust construction, making it a preferred choice for facility managers and HVAC professionals.

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The robust construction of the 50PCH series enhances durability and reliability. With an all-weather aluminum cabinet, these chillers are designed to withstand harsh environmental conditions, ensuring long-term performance. The units undergo rigorous testing to meet high industry standards for quality and reliability.

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