Carrier 50PCH specifications WSHP Open Control, WSHP Open Inputs and Outputs Table

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