Water source heat pump module, Installation & wiring, Technical guide 6 important wiring considerations – Orion System Water Source Heat Pump Module Tulsa User Manual

Page 6: Stand-alone wiring, 1 amp maximum load

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Water Source Heat Pump Module

Technical Guide

6

Important Wiring Considerations

Please read carefully and apply the following information when wiring
the Water Source Heat Pump Module:

1. To operate the Water Source Heat Pump Module in Stand-

Alone mode, you must connect power to the 24 VAC input
terminal block. Do not allow wire strands to stick out and
touch adjoining terminals. This could potentially cause a short
circuit.

2. The 1 to 5 VDC signals for the Compressor modulation need

to use 18-gauge shielded twisted pair cable, and the Drain wire

must be the GND signal.

3. All 24 VAC wiring must be connected so that all ground

wires remain common. Failure to follow this procedure can

result in damage to the module and connected devices.

Installation & Wiring

4. Be sure all modular wiring harness connectors are seated

fi rmly in their respective modular connectors on the circuit

board.

5. All wiring is to be in accordance with local and

national electrical codes and specifi cations.

6.

Check all wiring leads at the terminal block for tightness.
Be sure that wire strands do not stick out and touch adjacent
terminals. Confi rm that all transducers required for your
system are mounted in the appropriate location and wired into
the correct terminals.

Stand-Alone Wiring

To operate the Water Source Heat Pump Module as Stand Alone, con-
nect the Module to a 24 VAC power connection with an appropriate VA
rating. See Figure 3 for wiring.

Figure 3: Water Source Heat Pump Module as Stand-Alone

NOTE:

NORMALLY

OPEN AND RATED FOR 24 VAC POWER ONLY

ALL RELAY OUTPUTS ARE

COMPRESSOR A2 ENABLE

COMPRESSOR A1 ENABLE

GND

T2

T1

BIN2

BIN1

R

E

R1

R4
R5

R3

R2

COMM

COMPRESSOR A1 SUCTION

PRESSURE TRANSDUCER

BK

RD

WH

WATER POF SYSTEM A CONTACT

COMPRESSOR A1 ENABLE CONTACT

COMPRESSOR A2 ENABLE CONTACT

BK

RD

WH

BK

RD

WH

BK

RD

WH

WATTMASTER CONTROLS

COMPRESSOR B1 ENABLE
COMPRESSOR B2 ENABLE

ALARM OUTPUT

COMPRESSOR B1 ENABLE CONTACT
COMPRESSOR B2 ENABLE CONTACT

HEAT ENABLE CONTACT

WATER POF SYSTEM B CONTACT

BIN3

BIN5

BIN4

BIN6
BIN7
COM

LEAVING WATER TEMPERATURE
FOR SYSTEM B

LEAVING WATER TEMPERATURE
FOR SYSTEM A

NOTE:
OUTPUTS ARE NOT USED ON
STAND ALONE APPLICATIONS

DIP SWITCH

NOT USED FOR

STAND ALONE

APPLICATION

HVAC UNIT CONNECTIONS

COMPRESSOR A2 SUCTION

PRESSURE TRANSDUCER

COMPRESSOR B1 SUCTION

PRESSURE TRANSDUCER

COMPRESSOR B2 SUCTION

PRESSURE TRANSDUCER

GND

24 V

A

C

- 1 AMP MAXIMUM LOAD

OE334-23-WPM

Water Source Heat Pump

Module

WattMaster Label

#LB102069-A

Rev.: 1B

E-BUS

Connector

E-BUS

Connector

+5V

PRES

GND

+24

VAC

GND

BIN 1

BIN 2

BIN 3

BIN 4

BIN 5

BIN 6

BIN 7

COM

SUCTION
PRESSURE
TRANSDUCERS
#1 thru #4

COMP. 1 ENABLE
COMP. 2 ENABLE
COMP. 3 ENABLE

WSHP Protection Module

Orion No.: OE334-23-WPM

COMP. 4 ENABLE
HEAT ENABLE
H2O POF #1
H2O POF #2
COMMON

T 1

T 2

GND

LEAVING WATER TEMP 1

GROUND

LEAVING WATER TEMP 2

LED BLINK CODES

LED NAME

STATUS

OFF MODE

1

COOLING MODE

2

HEATING MODE

3

LED NAME

ALARM

LOW SUCTION PRESSURE

1

COMPRESSOR LOCKOUT

2

WATER FLOW FAILURE

3

LOW LEAVING WATER TEMP.

4

LED NAME

PRES 1-4

SENSOR DETECTED

ON

NO SENSOR DETECTED

OFF

LOW SUCTION PRESSURE

1

COMPRESSOR LOCKOUT

2

AO1

A2O

RELAY CONTACT RATING
IS 1 AMP MAX @ 24 VAC

COMP. #2 ENABLE

COMP. #1 ENABLE

R1

R2

R3

R4

RC

RELAY COMMON

COMP. #3 ENABLE

COMP. #4 ENABLE

SYSTEM A - CNTRLR C2

SYSTEM B - CNTRLR C2

+5V

PRES

GND

NOT USED

DIGITAL COMP #1 THRU #4

NON-DIGITAL COMP #1 THRU #4

COPELAND CNTRLR P6
COPELAND CNTRLR P5

AAON No.: R90680

WattMaster Label

#LB102069-A

Rev.: 1F

E-BUS

Connector

E-BUS

Connector

+24

VAC

GND

BIN 1

BIN 2

BIN 3

BIN 4

BIN 5

BIN 6

BIN 7

COM

COMP. A1 ENABLE
COMP. A2 ENABLE
COMP. B1 ENABLE

WSHP Module

Orion No.: OE334-23-WPM-A

AAON No.: R88350

www.aaon.com

www.orioncontrols.com

COMP. B2 ENABLE
HEAT ENABLE
WATER POF A
WATER POF B
COMMON

T 1

T 2

GND

LEAVING WATER TEMP A

GROUND

LEAVING WATER TEMP B

LED BLINK CODES

LED NAME

STATUS

OFF MODE

1

COOLING MODE

2

HEATING MODE

3

LED NAME

ALARM

LOW SUCTION PRESSURE

1

COMPRESSOR LOCKOUT

2

WATER FLOW FAILURE

3

LOW LEAVING WATER TEMP.

4

LED NAME

PRES 1-4

SENSOR DETECTED

ON

NO SENSOR DETECTED

OFF

LOW SUCTION PRESSURE

1

COMPRESSOR LOCKOUT

2

AO1

A2O

STAGE 1- COMP. A1/B1-

STAGE 2 - COMP. A2/B2

DIGITAL COMP. A1, A2, B1, B2

RELAY CONTACT RATING
IS 1 AMP MAX @ 24 VAC

COMP. A2 ENABLE

COMP. A1 ENABLE

R1

R2

R3

R4

R5
RC

RELAY COMMON

COMP. B1 ENABLE

COMP. B2 ENABLE

ALARM OUTPUT

CONNECT TO CNTLR C2 TERM.

+5V

PRES

GND

+5V

PRES

GND

SUCT. PR. SENSOR
PRES 1=A1, PRES 2=A2
PRES 3=B1, PRES 4=B2

NOT USED
PRES 1=A1, PRES 2=A2
PRES 3=B1, PRES 4=B2

+5 NOT USED, PRES TO P6 & GND TO P5

+5 TO RED, PRES TO WHT & GND TO BLK

DIGITAL COMRESSORS

NON-DIGITAL COMPRESSORS

LW: 36ºF HSP: 100 PSIG

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