RED

+ 24vac

LEGEND

 

 

 

WHT

 

 

 

BRN

 

 

 

GRN

 

 

 

PINK

 

 

 

ORN

SPACE RH

 

SPACE CO2

YLW

SENSOR

 

SENSOR

BLU

+24vac

 

+24vac

RED

+

 

+

BLU

 

ORN

4-20mA

 

4-20mA

 

BRN

-

 

-

 

PINK

 

 

 

 

 

 

VIO

FIELD INSTALLED (OPTIONAL) – SEE NOTE 2

PINK

J1

 

J2

 

6

5

4

3

2

1

10

1

7

1

 

 

 

J4

8

7

6

5

4

3

2

1

J5

Condensate

(DI-3/Dry Contact)

Overflow Switch

 

- Gnd

Fan (DO-1) (Fan On or Low Speed) Aux Heat (DO-2)

Reversing Valve (DO-3)

Comp #2 (DO-4)

Comp #1 (DO-5)

Comp Status (DI-5) (If not installed, it must be connected to DO-5) LWT (Input 6)

SAT (LAT) (Input 7)

AO1 – Aux Reheat or Cond.

WTR. Loop Econ. (AO 1)

a50-8380

OA DAMPER (AO-2)

AI

 

 

 

Analog Input

AO

 

 

 

Analog Output

BI

 

 

 

Binary Input

BO

 

 

 

Binary Output

SPT

 

 

 

Space Temperature

 

 

 

 

 

 

 

 

 

Factory Wiring

 

 

 

 

 

 

 

 

 

Field Wiring

 

 

 

 

 

 

 

 

 

NOTES:

1.Mount the water source heat pump controller in the equipment controls enclosure with at least two no. 6 x 1 in. self-tapping screws. Allow adequate clearance for wiring.

2.Verify sensor power and wiring requirements prior to making any terminations. Sensors requiring a separate isolated 24 vac power source will not utilize WSHP terminals J4-1, or 4.

18

 

 

 

 

J12

MSB

 

LSB

9 0

1

9

0

1

8

2

8

 

2

7

3

7

 

3

6

4

6

5

4

5

 

 

 

MSTP Baud

 

 

 

 

9600

 

19.2k

38.4k

76.8k

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SW3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

N

8

 

7

 

6

5

 

4

 

 

3

2

 

1

 

O

Field Installed

Local Access Port

4

RED4

 

BLACK

2

WHITE2

1

GREEN1

J13

 

3

3

4

3

2

1

J20

1 2

J22

To

SPT PLUS

J17

1 2 3

J19

J11

4 5 6 7 8

1 2

3

J14

DEHUMIDIFY OUTPUT CONTACT (DO-6) (FACTORY OPTION)

FAN SPEED (DO-7) (MED OR LOW)

FAN SPEED (DO-8) (HIGH OR FAN ON )

WSHP Open Inputs and Outputs Table

 

 

 

 

INPUT/OUTPUT TYPE

PART NUMBERS

TYPE OF I/O

CONNECTION

CHANNEL

FIELD INSTALLED

 

PIN NUMBERS

DESIGNATION

 

 

 

 

 

 

 

 

 

 

Inputs

 

 

SPT PLUS Sensor

 

 

 

 

 

 

 

 

Shown

 

 

 

 

 

 

Space Temperature Sensor

SPS, SPPL, SPP

Communicating

J13, 1 - 4

Local Access Port

 

 

Space Relative Humidity

33ZCSENSRH-01

AI (4 - 20mA)

J4, 5 and 6

Analog Input 1

 

 

Indoor Air Quality

33ZCSENCO2

AI (4 -20mA)

J4, 2 and 3

Analog Input 2

Rnet Terminals

To WSHPController

Condensate Switch

N/A

BI (Dry Contacts)

J1, 2

Binary Input 3

Stage 1 Compressor Status

N/A

BI (Dry Contacts)

J1, 10

Binary Input 5

RED

BLACK

WHITE

GREEN

10K Type II

AI (10K Thermistor)

J2, 1 and 2

Analog Input 6

Leaving Condenser Water Temperature

Supply Air Temperature

33ZCSENSAT

AI (10K Thermistor)

J2, 3 and 4

Analog Input 7

FIELD INSTALLED

SPT PLUS Sensor

LED1

 

 

 

 

Shown

 

 

 

 

DB

 

 

 

 

 

 

 

 

5BT81BT4-012207

 

(J13)

Outputs

 

 

 

 

 

Modulating Valve (Auxiliary Heat/Water

N/A

AO (0-10Vdc/2 - 10Vdc)

J2 4 and 5*

Analog Output 1

 

Economizer)

 

 

 

 

 

To WSHP Controller Rnet Terminals (J13)

RED

BLACK

WHITE

GREEN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+12V

Rnet-

Rnet+

Gnd

Install BT485 where device is located at the end of network segment only.

+12V

Rnet

Rnet+

Gnd

N/A

AO (0-10Vdc/2 - 10Vdc)

J22 1 and 2*

Analog Output 2

Outside Air Damper

 

-

 

 

 

 

 

 

Supply Fan On/Low Speed

N/A

BO Relay (24VAC, 1A)

J1, 4*

Binary Output 1 (G)

(3 Speed Only)

 

 

 

 

Auxiliary Heat or 2-Position Water Loop

N/A

BO Relay (24VAC, 1A)

J1, 5*

Binary Output 2

Economizer

 

 

 

 

 

 

Reversing Valve (B or O Operation)

N/A

BO Relay (24VAC, 1A)

J1, 6*

Binary Output 3 (RV)

Compressor 2nd Stage

N/A

BO Relay (24VAC, 1A)

J1, 7

Binary Output 4 (Y2)

Compressor 1st Stage

N/A

BO Relay (24VAC, 1A)

J1, 8

Binary Output 5 (Y1)

Dehumidification Relay

N/A

BO Relay (24VAC, 1A)

J11, 7 and 8 (NO)

Binary Output 6

Fan Speed Medium/Low (3 Speed Only)

N/A

BO Relay (24VAC, 1A)

J11, 5 and 6 (NO)*

Binary Output 7

Fan Speed High/Low (3 Speed Only)

N/A

BO Relay (24VAC, 1A)

J11, 2 and 3 (NO)*

Binary Output 8

*These inputs are configurable.

 

 

 

 

Fig. 20 — WSHP Open Control

Page 18
Image 18
Carrier 50PCH specifications Wshp Open Control

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.

One of the main features of the Carrier 50PCH is its advanced scroll compressor technology. This system consists of high-efficiency scroll compressors that optimize energy consumption while maintaining consistent cooling output. The incorporation of variable speed technology enables the chillers to adapt to fluctuating load demands, resulting in significant energy savings and reduced operational costs.

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In addition to its energy-efficient operation, the 50PCH series is equipped with advanced controls that allow for seamless integration into building management systems. The intuitive interface facilitates monitoring and adjustment of set points, ensuring optimal comfort conditions. Furthermore, the chillers come with extensive diagnostic capabilities, enabling proactive maintenance and reducing the risk of unexpected downtime.

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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In summary, the Carrier 50PCH series combines exceptional performance, energy efficiency, and innovative technology in a robust and reliable package. It highlights the best in modern HVAC design, making it an ideal solution for a wide array of climate control needs in commercial and institutional settings. With its advanced features and commitment to sustainability, the 50PCH is undoubtedly a leader in the air-cooled chiller market.