Carrier 50PTH, PTV specifications a50-8571, WSHP Open Control

							+ 24vac
							- Gnd
					Fan (DO-1) (Fan On or Low Speed)
FIELD INSTALLED (OPTIONAL) – SEE NOTE 2					Aux Heat (DO-2)
					Reversing Valve (DO-3)		NC FIRE/SMOKE
	SPACE RH	PRIMARY	SPACE CO2	PRIMARY	Comp #2 (DO-4)		DETECTOR CONTACT
	SENSOR		SENSOR
					Comp #1 (DO-5)		(FIELD-INSTALLED)
	+24vac		+24vac			Comp Status (DI-5) (If not installed, it must be connected to DO-5)
	+		+
						LWT (Input 6)
	4-20mA		4-20mA
	-		-

SAT (LAT) (Input 7)

AO1 – Aux Reheat or Cond.

WTR. Loop Econ. (AO 1)

					J1		J2
					1	10	1	7
6	5	4	3	2				CONDENSATE
					1
								OVERFLOW SWITCH

J4

8 7 6 5 4 3 2 1

J5

REMOTE OCCUPANCY/

FAN STATUS SWITCH (FIELD-INSTALLED)

OA DAMPER (AO-2)

(FIELD-INSTALLED)

	LEGEND
AI	—	Analog Input
AO	—	Analog Output
BI	—	Binary Input
BO	—	Binary Output
SPT	—	Space Temperature
		Factory Wiring
		Field Wiring

NOTES:

10.Mount the water source heat pump controller in the equipment controls enclosure with at least two #6 x 1 in. self-tapping screws. Allow adequate clearance for wiring.

11.Verify sensor power and wiring requirements prior to making any terminations. Sen- sors requiring a separate isolated 24 vac power source will not utilize WSHP termi- nals J4-1, or 4.

a50-8571

23

2

1

J22

J11

8

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

Field Installed

7

6

Local Access Port

J12

4 5

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

WSHP Open Inputs and Outputs Table

MSB

LSB

4

RED

3

BLACK

To

0

0

3

9

1

9

1

2

WHITE

SPT PLUS

2

CONNECTION

CHANNEL

2

INPUT/OUTPUT TYPE

PART NUMBERS

TYPE OF I/O

8

8

2

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

7

3

7

3

1

GREEN

1

PIN NUMBERS

DESIGNATION

4

4

6

5

6

5

Inputs

J13

MSTP Baud

Space Temperature Sensor

SPS, SPPL, SPP

Communicating

J13, 1 - 4

Local Access Port

9600

19.2k

38.4k

76.8k

J17

Space Relative Humidity

33ZCSENSRH-01

AI (4 - 20mA)

J4, 5 and 6

Analog Input 1

SW3

Indoor Air Quality

33ZCSENCO2

AI (4 -20mA)

J4, 2 and 3

Analog Input 2

1

2

3

J14

Condensate Switch

N/A

BI (Dry Contacts)

J1, 2

Binary Input 3

N

4

3

2

1

J19

Stage 1 Compressor Status

N/A

BI (Dry Contacts)

J1, 10

Binary Input 5

8

7

6

5

4

3

2

1

O

Leaving Condenser Water Temperature

10K Type II

AI (10K Thermistor)

J2, 1 and 2

Analog Input 6

J20

Supply Air Temperature

33ZCSENSAT

AI (10K Thermistor)

J2, 3 and 4

Analog Input 7

FIELD INSTALLED

Outputs

SPT PLUS Sensor

Modulating Valve (Auxiliary Heat/Water

Shown

N/A

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

J2 4 and 5*

Analog Output 1

Economizer)

Outside Air Damper

N/A

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

J22 1 and 2*

Analog Output 2

Supply Fan On/Low Speed

N/A

BO Relay (24VAC, 1A)

J1, 4*

Binary Output 1 (G)

To WSHPController RnetTerminals(J13)

LED1

(3 Speed Only)

DB

5BT81BT4-012207

Auxiliary Heat or 2-Position Water Loop

BLACK

WHITE

GREEN

N/A

BO Relay (24VAC, 1A)

J1, 5*

Binary Output 2

RED

Economizer

Install BT485 where device is

Reversing Valve (B or O Operation)

N/A

BO Relay (24VAC, 1A)

J1, 6*

Binary Output 3 (RV)

located at the end of network

segment only.

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

+12V

Rnet-

Rnet+

Gnd

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. 24 — WSHP Open Control