WattMaster Water Source Heat Pump Specifications

Factory Packaged Controls
Water Source
Heat Pump X Module
Field Technical Guide
YS102374 REV 0
WATTMASTER CONTROLS
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OE334-26-WSHPX-A WSHP-X MODULE
NON-DIGITAL COMPRESSORS
SUCT. PR. SENSOR
+5V
PRES 1=A1, PRES 2=A2
PRES
PRES 3=B1, PRES 4=B2
GND
+5 TO RED, PRES TO WHT & GND TO BLK
DIGITAL COMRESSORS
NOT USED
PRES 1=A1, PRES 2=A2
PRES 3=B1, PRES 4=B2
+5 NOT USED, PRES TO P6 & GND TO P5
- COMP. A1 EN.
- COMP. A2 EN.
- COMP. B1 EN.
- COMP. B2 EN.
BIN 5
BIN 6
BIN 7
COM
- HEAT ENABLE
- WATER POF
- WATER POF
- COMMON
T 1 - LEAVING WATER TEMP A
T 2 - LEAVING WATER TEMP B
GND - GROUND
WattMaster Label
#SW000054
Rev.: 1A
E-BUS
CONNECT
R3
R4
ALARM OUTPUT
RELAY COMMON
R5
RC
DIGITAL COMP. A1, A2, B1, B2
STAGE 1- COMP. A1/B1AO1
A2O
STAGE 2 - COMP. A2/B2
CONNECT TO CNTLR C2 TERM.
E-BUS
CONNECT
GND
BIN 1
BIN 2
BIN 3
BIN 4
COMP. B1 ENABLE
COMP. B2 ENABLE
+24 VAC
+5V
PRES
GND
AAON NO.: V18330
RELAY CONTACT RATING
IS 1 AMP MAX @ 24 VAC
COMP. A1 ENABLE
R1
COMP. A2 ENABLE
R2
Table of Contents
OVERVIEW ........................................................................................................................................................ 3
INSTALLATION AND WIRING ........................................................................................................................... 4
Environmental Requirements .......................................................................................................................................................4
Mounting and Dimensions ............................................................................................................................................................4
Important Wiring Considerations ..................................................................................................................................................5
Stand-Alone Wiring for Single Water Circuit ................................................................................................................................5
Stand-Alone Wiring for Dual Water Circuit ...................................................................................................................................6
Connection Wiring Details ............................................................................................................................................................7
VCM-X WSHP or SA Controller to WSHP-X Module Wiring Diagram Single Water Circuit .........................................................8
VCM-X WSHP E-BUS or SA E-BUS Controller to WSHP-X Module Wiring Single Water Circuit..............................................10
VCM-X WSHP or SA Controller to WSHP-X Module Wiring Diagram Dual Water Circuit..........................................................12
VCM-X WSHP E-BUS or SA E-BUS Controller to WSHP-X Module Wiring Dual Water Circuit ................................................14
START-UP AND COMMISSIONING.................................................................................................................. 16
Unit Configurations .....................................................................................................................................................................16
SEQUENCE OF OPERATION ........................................................................................................................... 17
WSHP-X Module Setpoints ........................................................................................................................................................17
Stand-Alone Input Commands ..................................................................................................................................................18
Input Commands (VCM-X WSHP or SA Connection) ................................................................................................................18
Modes of Operation ....................................................................................................................................................................19
LCD DISPLAY SCREENS ................................................................................................................................. 20
TROUBLESHOOTING ...................................................................................................................................... 26
Safety Monitoring for Single Water Circuit .................................................................................................................................26
Safety Monitoring for Dual Water Circuit ....................................................................................................................................27
Temperature Sensor Testing ......................................................................................................................................................28
Pressure Transducer Troubleshooting ......................................................................................................................................29
Using LEDs to Verify Operation..................................................................................................................................................30
LED Diagnostics .........................................................................................................................................................................31
PART NUMBER CROSS REFERENCE TABLE
PART DESCRIPTION
ORION
AAON
WSHP-X Module
OE334-26-WSHPX-A
V18330
VCM-X WSHP E-BUS Controller
OE332-23E-VCMX-WSHP-A
V07140
VCM-X WSHP Controller
OE332-23-VCMX-WSHP-A
R90810
SA E-BUS Controller
OE332-23E-SA-A
V07160
SA Controller
OE332-23-SA-A
R96070
E-BUS Distribution Module
OE365-23-EBD
R82930
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WattMaster Controls Inc.
8500 NW River Park Drive · Parkville , MO 64152
Toll Free Phone: 866-918-1100
PH: (816) 505-1100 · FAX: (816) 505-1101 · E-mail: mail@wattmaster.com
Visit our web site at www.orioncontrols.com
WattMaster Form : AA-WSHPX-FIELD-TGD-01C
Copyright December 2013 WattMaster Controls, Inc.
AAON Manual Part Number: V23560
AAON® is a registered trademark of AAON, Inc., Tulsa, OK.
Neither WattMaster Controls, Inc. nor AAON®
assumes any responsibility for errors or omissions in this document.
This document is subject to change without notice.
WSHP-X Module
Module Overview
Overview
Features
The OE334-26-WSHPX-A Water Source Heat Pump X (WSHP-X)
Module monitors the compressors on an AAON® Water Source Heat
Pump unit and can disable the compressors based on low Suction Pressure, Leaving Water Temperature, and Water Proof of Flow inputs. It
also utilizes a Delay Timer to prevent the compressors from turning on
at the same time.
The WSHP-X Module provides the following:

Can be operated stand-alone or connected to a
VCM-X WSHP Controller or SA Controller using
the E-BUS Distribution Module to E-BUS interface


The WSHP-X Module’s water circuit configuration can be either single
or dual. There are eight R410-A glycol configurations for the WSHP-X
Module—0%-40% in increments of 5%. There are two refrigerant selections—R410-A refrigerant and R-22 refrigerant. If R-22 refrigerant is
selected, the glycol will automatically default to 0%.
Capable of controlling digital compressors when
connected to a VCM-X WSHP Series Controller or
SA Series Controller

Monitors suction pressure, leaving water
temperature, and water proof of flow

The WSHP-X Module can be used stand-alone. It can also be connected
to the VCM-X WSHP Controller or the SA Controller using the E-BUS
Distribution Module or the module can be directly connected to the
VCM-X WSHP E-BUS Controller or SA E-BUS Controller, allowing
the Module to receive setpoints from the Controllers. See chart on page
2 for part numbers. Please note: The SA series of controllers only work
with the R410-A dual water circuit configurations.
Can be directly connected to a VCM-X WSHP E-BUS
Controller or SA E-BUS Controller
Provides Delay Timer to prevent compressors
from turning on at the same time

Contains a 2x8 LCD character display and 4 buttons
that allow for status display, setpoint changes, and
configuration changes
NOTE: The WSHP-X Module contains no user-serviceable parts.
Contact qualified technical personnel if your Module is
not operating correctly.
The WSHP-X Module requires a 24 VAC power connection with an
appropriate VA rating.
NOTE: The WSHP-X Module is factory set for R410-A and 0%
glycol.
YS102374 REV 0
WATTMASTER CONTROLS
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OE334-26-WSHPX-A WSHP-X MODULE
NON-DIGITAL COMPRESSORS
SUCT. PR. SENSOR
+5V
PRES 1=A1, PRES 2=A2
PRES
PRES 3=B1, PRES 4=B2
GND
+5 TO RED, PRES TO WHT & GND TO BLK
DIGITAL COMRESSORS
NOT USED
PRES 1=A1, PRES 2=A2
PRES 3=B1, PRES 4=B2
+5 NOT USED, PRES TO P6 & GND TO P5
BIN 5
BIN 6
BIN 7
COM
- COMP. A1 EN.
- COMP. A2 EN.
- COMP. B1 EN.
- COMP. B2 EN.
- HEAT ENABLE
- WATER POF
- WATER POF
- COMMON
T 1 - LEAVING WATER TEMP A
T 2 - LEAVING WATER TEMP B
GND - GROUND
WattMaster Label
#SW000054
Rev.: 1A
E-BUS
CONNECT
R3
R4
ALARM OUTPUT
RELAY COMMON
R5
RC
DIGITAL COMP. A1, A2, B1, B2
STAGE 1- COMP. A1/B1AO1
A2O
STAGE 2 - COMP. A2/B2
CONNECT TO CNTLR C2 TERM.
E-BUS
CONNECT
GND
BIN 1
BIN 2
BIN 3
BIN 4
COMP. B1 ENABLE
COMP. B2 ENABLE
+24 VAC
+5V
PRES
GND
AAON NO.: V18330
RELAY CONTACT RATING
IS 1 AMP MAX @ 24 VAC
COMP. A1 ENABLE
R1
COMP. A2 ENABLE
R2
Figure 1: Water Source Heat Pump X Module
Technical Guide
3
WSHP-X Module
Installation & Wiring
Environmental Requirements
Power Supply
The WSHP-X Module needs to be installed in an environment that can
maintain a temperature range between -30°F and 150°F and not exceed
90% RH levels (non-condensing).
The WSHP-X Module requires a 24 VAC power connection with an
appropriate VA rating.
If you will be connecting the WSHP-X Module to a VCM-X WSHP
Series Controller or SA Series Controller, one of the most important
checks to make before powering up the system for the first time is to
make sure that the Controller is configured properly for your application. Refer to the VCM-X Controller Technical Guide, VCM-X Modular
E-BUS Controller Technical Guide, SA Controller Technical Guide, or
SA E-BUS Controller Technical Guide for more information.
Mounting
The WSHP-X Module is housed in a plastic enclosure. It is designed to
be mounted by using the 3 mounting holes in the enclosure base. It is
important to mount the module in a location that is free from extreme
high or low temperatures, moisture, dust, and dirt. Be careful not to
damage the electronic components when mounting the module. See
Figure 2 for Module dimensions (in inches).
WARNING:
Observe polarity! All boards must be wired
GND-to-GND and 24 VAC-to-VAC. Failure to
observe polarity could result in damage to the
boards.
0.18 DIA. TYP. 3 PL.
2.07
0.29
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OE334-26-WSHPX-A WSHP-X MODULE
NON-DIGITAL COMPRESSORS
SUCT. PR. SENSOR
+5V
PRES 1=A1, PRES 2=A2
PRES
PRES 3=B1, PRES 4=B2
GND
+5 TO RED, PRES TO WHT & GND TO BLK
DIGITAL COMRESSORS
NOT USED
PRES 1=A1, PRES 2=A2
PRES 3=B1, PRES 4=B2
COMP. B1 ENABLE
R3
COMP. B2 ENABLE
R4
ALARM OUTPUT
RELAY COMMON
R5
RC
+5 NOT USED, PRES TO P6 & GND TO P5
BIN 1
BIN 2
BIN 3
BIN 4
- COMP. A1 EN.
- COMP. A2 EN.
- COMP. B1 EN.
- COMP. B2 EN.
BIN 5
BIN 6
BIN 7
COM
- HEAT ENABLE
- WATER POF
- WATER POF
- COMMON
CONNECT TO CNTLR C2 TERM.
T 1 - LEAVING WATER TEMP A
T 2 - LEAVING WATER TEMP B
GND - GROUND
WattMaster Label
#SW000054
Rev.: 1A
E-BUS
CONNECT
5.05
DIGITAL COMP. A1, A2, B1, B2
STAGE 1- COMP. A1/B1AO1
A2
O
STAGE 2 - COMP. A2/B2
E-BUS
CONNECT
GND
+5V
PRES
GND
AAON NO.: V18330
RELAY CONTACT RATING
IS 1 AMP MAX @ 24 VAC
COMP. A1 ENABLE
R1
COMP. A2 ENABLE
R2
+24 VAC
5.64
0.56
4.14
5.83
Note: Height is 1.49 inches.
Figure 2: Water Source Heat Pump X Module Dimensions
4
Technical Guide
WSHP-X Module
Installation & Wiring
Important Wiring Considerations
5. All wiring is to be in accordance with local and
national electrical codes and specifications.
Please read carefully and apply the following information when wiring
the WSHP-X Module:
6. Check all wiring leads at the terminal block for tightness.
Be sure that wire strands do not stick out and touch adjacent
terminals. Confirm that all transducers required for your
system are mounted in the appropriate location and wired into
the correct terminals.
1. To operate the WSHP-X 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.
Stand-Alone Wiring Single Water
Circuit
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.
To operate the WSHP-X Module as Stand Alone, connect the Module to
a 24 VAC power connection with an appropriate VA rating. See Figure
3 for wiring.
4. Be sure all modular wiring harness connectors are seated
firmly in their respective modular connectors on the circuit
board.
OE334-36-WSHPX-A
Water Source Heat Pump X
Module
NOTE: ALL RELAY OUTPUTS ARE NORMALLY
OPEN AND RATED FOR 24 VAC POWER ONLY
- 1 AMP MAXIMUM LOAD
CIRCUIT A
SUCTION PRESSURE TRANSDUCER
+V
SIG 1
BK
GND
WATTMASTER CONTROLS
ALARM
CIRCUIT B
SUCTION PRESSURE TRANSDUCER
M
+V
SIG 1
BK
GND
MENU
DOWN
OE334-26-WSHPX-A WSHP-X MODULE
NON-DIGITAL COMPRESSORS
SUCT. PR. SENSOR
+5V
PRES 1=A1, PRES 2=A2
PRES
PRES 3=B1, PRES 4=B2
GND
COMPRESSOR A1 ENABLE CONTACT
COMPRESSOR A2 ENABLE CONTACT
COMPRESSOR B1 ENABLE CONTACT
COMPRESSOR B2 ENABLE CONTACT
HEAT ENABLE CONTACT
WATER POF SYSTEM A CONTACT
WATER POF SYSTEM B CONTACT
BIN1
BIN2
BIN3
BIN4
BIN5
BIN6
BIN7
COM
T1
ENTER
www.aaon.com
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+5 TO RED, PRES TO WHT & GND TO BLK
+5V
PRES
GND
DIGITAL COMRESSORS
NOT USED
PRES 1=A1, PRES 2=A2
PRES 3=B1, PRES 4=B2
+5 NOT USED, PRES TO P6 & GND TO P5
BIN 1 - COMP. A1 EN.
BIN 2 - COMP. A2 EN.
BIN 3 - COMP. B1 EN.
BIN 4 - COMP. B2 EN.
BIN 5 - HEAT ENABLE
BIN 6 - WATER POF
BIN 7 - WATER POF
COM - COMMON
E-BUS
CONNECT
AAON NO.: V18330
COMPRESSOR A1 ENABLE OUTPUT
COMPRESSOR A2 ENABLE OUTPUT
COMPRESSOR B1 ENABLE OUTPUT
COMPRESSOR B2 ENABLE OUTPUT
ALARM OUTPUT
HVAC UNIT CONNECTIONS
COMP. B1 ENABLE
R3
COMP. B2 ENABLE
R4
ALARM OUTPUT
RELAY COMMON
R5
RC
DIGITAL COMP. A1, A2, B1, B2
STAGE 1- COMP. A1/B1AO1
A2O
STAGE 2 - COMP. A2/B2
NOTE:
OUTPUTS ARE NOT USED ON
STAND ALONE APPLICATIONS
CONNECT TO CNTLR C2 TERM.
T 1 - LEAVING WATER TEMP A
T 2 - LEAVING WATER TEMP B
GND - GROUND
WattMaster Label
#SW000054
Rev.: 1A
R1
R2
R3
R4
R5
COMM
RELAY CONTACT RATING
IS 1 AMP MAX @ 24 VAC
COMP. A1 ENABLE
R1
COMP. A2 ENABLE
R2
E-BUS
CONNECT
GND
RD
WH
UP
+24 VAC
RD
WH
GND
24 VAC
GND
E
R
LEAVING WATER TEMPERATURE
Figure 3: Water Source Heat Pump X Module as Stand-Alone for Single Water Circuit
Technical Guide
5
WSHP-X Module
Installation & Wiring
Stand-Alone Wiring Dual Water
Circuit
To operate the WSHP-X Module as Stand Alone, connect the Module to
a 24 VAC power connection with an appropriate VA rating. See Figure
4 for wiring.
OE334-43-WSHPX-A
Water Source Heat Pump X
Module
+V
SIG 1
CIRCUIT A2
SUCTION PRESSURE
TRANSDUCER
RD
WH
BK
+V
SIG 2
GND
CIRCUIT B1
SUCTION PRESSURE
TRANSDUCER
RD
WH
BK
+V
SIG 1
GND
CIRCUIT B2
SUCTION PRESSURE
TRANSDUCER
RD
WH
+V
SIG 2
BK
GND
WATTMASTER CONTROLS
GND
ALARM
M
MENU
DOWN
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OE334-26-WSHPX-A WSHP-X MODULE
NON-DIGITAL COMPRESSORS
SUCT. PR. SENSOR
+5V
PRES 1=A1, PRES 2=A2
PRES
PRES 3=B1, PRES 4=B2
GND
+5V
PRES
GND
+5 NOT USED, PRES TO P6 & GND TO P5
BIN 5 - HEAT ENABLE
BIN 6 - WATER POF
BIN 7 - WATER POF
COM - COMMON
E-BUS
CONNECT
COMP. B1 ENABLE
R3
COMP. B2 ENABLE
R4
ALARM OUTPUT
RELAY COMMON
R5
RC
DIGITAL COMP. A1, A2, B1, B2
STAGE 1- COMP. A1/B1AO1
A2O
STAGE 2 - COMP. A2/B2
COMPRESSOR A1 ENABLE
COMPRESSOR A2 ENABLE
COMPRESSOR B1 ENABLE
COMPRESSOR B2 ENABLE
ALARM OUTPUT
HVAC UNIT CONNECTIONS
NOTE:
OUTPUTS ARE NOT USED ON
STAND ALONE APPLICATIONS
CONNECT TO CNTLR C2 TERM.
T 1 - LEAVING WATER TEMP A
T 2 - LEAVING WATER TEMP B
GND - GROUND
WattMaster Label
#SW000054
Rev.: 1A
AAON NO.: V18330
RELAY CONTACT RATING
IS 1 AMP MAX @ 24 VAC
COMP. A1 ENABLE
R1
COMP. A2 ENABLE
R2
DIGITAL COMRESSORS
NOT USED
PRES 1=A1, PRES 2=A2
PRES 3=B1, PRES 4=B2
BIN 1 - COMP. A1 EN.
BIN 2 - COMP. A2 EN.
BIN 3 - COMP. B1 EN.
BIN 4 - COMP. B2 EN.
R1
R2
R3
R4
R5
COMM
E-BUS
CONNECT
GND
24 VAC
BIN1
BIN2
BIN3
BIN4
BIN5
BIN6
BIN7
COM
T1
T2
GND
ENTER
www.aaon.com
+5 TO RED, PRES TO WHT & GND TO BLK
COMPRESSOR A1 ENABLE CONTACT
COMPRESSOR A2 ENABLE CONTACT
COMPRESSOR B1 ENABLE CONTACT
COMPRESSOR B2 ENABLE CONTACT
HEAT ENABLE CONTACT
WATER POF SYSTEM A CONTACT
WATER POF SYSTEM B CONTACT
UP
GND
RD
WH
BK
+24 VAC
CIRCUIT A1
SUCTION PRESSURE
TRANSDUCER
NOTE: ALL RELAY OUTPUTS ARE NORMALLY
OPEN AND RATED FOR 24 VAC POWER ONLY
- 1 AMP MAXIMUM LOAD
E
R
LEAVING WATER
TEMPERATURE
FOR SYSTEM A
LEAVING WATER
TEMPERATURE
FOR SYSTEM B
Figure 4: Water Source Heat Pump X Module as Stand-Alone for Dual Water Circuit
6
Technical Guide
WSHP-X Module
Installation & Wiring
E-BUS to WSHP-X Module Wiring
The WSHP-X Module connects to the E-BUS Distribution Module using a modular HSSC cable. The WSHP-X Module requires a 24 VAC
power connection with an appropriate VA rating.
The E-BUS Distribution Module connects to the VCM-X WSHP Controller, VCM-X Expansion Module, SA Controller (Dual Water Circuit
only), SA Expansion Module (Dual Water Circuit only), or 12 Relay
Expansion Module using the I2C port. See Figure 5 on page 8 and
Figure 7 on page 12 for wiring.
Any E-BUS Module can be connected to each of the four E-BUS Distribution Module’s output ports or can be daisy-chained together using
HSSC cables.
WARNING:
Be sure all controllers and modules are
powered down before connecting or
disconnecting HSSC cables.
Addressing
When the WSHP-X Module is connected to the E-BUS Distribution
Module, set the WSHP-X Module’s address to 1. Set the address consecutively for each WSHP-X Module you are using.
NOTE: Address zero defaults to address 1.
If using a spliced terminal connection for longer runs, one module can be
connected to the E-BUS Distribution Module and any additional modules
would be daisy-chained to the first module. For more information, refer
to the E-BUS Distribution Module Technical Guide.
VCM-X WSHP E-BUS or SA E-BUS
Controller to WSHP-X Module Wiring
The WSHP-X Module connects to the E-BUS Controller using a modular
HSSC cable. The WSHP-X Module requires a 24 VAC power connection
with an appropriate VA rating. See Figure 6 on page 10 and Figure 8
on page 14 for wiring.
Any E-BUS Module can be connected to the E-BUS Controller’s E-BUS
port or can be daisy-chained together using HSSC cables.
NOTE: Contact Factory for the correct HSSC cable length
for your application. Cables are available in 1/4, 1/2,
1, 2, 3, 4, and 5 Meter lengths and 100 and 150 Foot
lengths.
Technical Guide
7
WSHP-X Module
Installation & Wiring
VCM-X WSHP to WSHP-X Module
Wiring for Single Water Circuit
The VCM-X WSHP Controller or SA Controller communicates with the
WSHP-X Module using the E-BUS Distribution Module. See Figure
5 for wiring details.
For Stand Alone Applications,
Connect To System Manager.
For Network Applications
Connect To Next Controller
And/Or MiniLink PD On Local Loop.
NOTE: When using the WSHP-X Module, all compressors
will be wired from the WSHP-X Module, not the
VCM-X WSHP Controller
Note:
All Relay Outputs Are Normally Open And Rated
For 24 VAC Power Only.
1 Amp Maximum Load.
(OE332-23-WSHP-C)
VCM-X WSHP Controller
Local Loop
RS-485
9600 Baud
R - 24VAC
G - Fan ON/OFF Only
All Comm Loop Wiring Is
Straight Thru
T to T, R to R & SHLD to SHLD
Relay Output Contacts
R2 Through R5 May Be User Configured For The
Following:
1 - Heating Stages
2 - See Note 1 Below
3 - Warm-up Mode Command (VAV Boxes)
4 - Reversing Valve (Air To Air Heat Pumps)
5 - Reheat Control (Dehumidification)
6 - Exhaust Fan Interlock
7 - Preheater For Low Ambient Protection
8 - Alarm
9 - Override
10 - Occupied
11 - OA Damper
12 - Heat Wheel
Note:
1.) When Using The WSHP-X Module, All
Compressors Will Be Wired From The Module, Not
The VCM-X Controller.
2.) A Total Of 20 Relays Are Available By Adding Relay
Expansion Modules. All Expansion Module Relay
Outputs Are User-Configurable As Listed Above.
See Individual Component
Wiring Diagrams For
Detailed Wiring Of Analog
Inputs And Outputs
AI1 SET
AI5
AI4 SET
AI5 SET
AI2 SET
AI7
AI3 SET
AI4
AI2 SET
AI1 SET
AI1
AI2
AI3
Connect To
E-BUS
Distribution
Module
GND
Line Voltage
AI7 SET
AI3 SET
24VAC
24 VAC
GND
AI4 SET
Size Transformer For Correct
Total Load.
VCM-X Controller = 8 VA
Jumpers
AI5 SET
Splice If Required
AI7 SET
OE271
Static Pressure
Transducer
Connect FRP Tubing To High Pressure
Port (Bottom Tube) And Route To Static
Pressure Pickup Probe Located In Unit
Discharge. Leave Port Marked “Lo” Open
To Atmosphere
Line Voltage
Connect To Digital Room Sensor And/Or
Digital CO2 Sensor
Connect To E-BUS Distribution Module or
Expansion Module(s)
(When Used)
Warning:
24 VAC Must Be Connected So That All Ground
Wires Remain Common. Failure To Do So Will
Result In Damage To The Controllers.
Figure 5: VCM-X WSHP Controller to WSHP-X Module Wiring Diagram for Single Water Circuit
8
Technical Guide
WSHP-X Module
Installation & Wiring
CIRCUIT B
SUCTION PRESSURE TRANSDUCER
BK
WH
RD
CIRCUIT A
SUCTION PRESSURE TRANSDUCER
BK
WH
RD
OE334-26-WSHPX-A Water Source
Heat Pump X Module
NOTE: ALL RELAY OUTPUTS
ARE NORMALLY OPEN AND
RATED FOR 24 VAC POWER
ONLY
OE365-23-EBD E-BUS
Distribution Module
HVAC UNIT
CONNECTIONS
YS102374 REV 0
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ALARM
MADE IN USA
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YS102308
REV 1
I2C TO COMM
DIST. BOARD
UP
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ENTER
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+COMM
DOWN
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SHLD
OE334-26-WSHPX-A WSHP-X MODULE
-COMM
NON-DIGITAL COMPRESSORS
SUCT. PR. SENSOR
+5V
PRES 1=A1, PRES 2=A2
PRES
PRES 3=B1, PRES 4=B2
GND
+VDC
+5 TO RED, PRES TO WHT & GND TO BLK
+5V
PRES
GND
INPUT
DIGITAL COMRESSORS
NOT USED
PRES 1=A1, PRES 2=A2
PRES 3=B1, PRES 4=B2
+5 NOT USED, PRES TO P6 & GND TO P5
+COMM
BIN 1
BIN 2
BIN 3
BIN 4
SHLD
WATER POF
CONTACT
-COMM
GND
BIN6
BIN 5
BIN 6
BIN 7
COM
- HEAT ENABLE
- WATER POF
- WATER POF
- COMMON
T 1 - LEAVING WATER TEMP A
T 2 - LEAVING WATER TEMP B
GND - GROUND
COM
24VAC
- COMP. A1 EN.
- COMP. A2 EN.
- COMP. B1 EN.
- COMP. B2 EN.
WattMaster Label
#SW000054
Rev.: 1A
T1
E-BUS
CONNECT
AAON NO.: V18330
RELAY CONTACT RATING
IS 1 AMP MAX @ 24 VAC
COMP. A1 ENABLE
R1
COMP. A2 ENABLE
R2
COMP. B1 ENABLE
R3
COMP. B2 ENABLE
R4
ALARM OUTPUT
RELAY COMMON
R5
RC
AO1
DIGITAL STAGE 1 (1.5-5V)
AO2
DIGITAL STAGE 2 (1.5-5V)
DIGITAL COMP. A1, A2, B1, B2
STAGE 1- COMP. A1/B1AO1
A2O
STAGE 2 - COMP. A2/B2
CONNECT TO CNTLR C2 TERM.
E-BUS
CONNECT
GND
GND
COMP. A1 ENABLE
COMP. A2 ENABLE
COMP. B1 ENABLE
COMP. B2 ENABLE
ALARM OUTPUT
+24 VAC
OUTPUT
R1
R2
R3
R4
R5
COMM
GND
GND
485 DRV
WARNING!!
Observe Polarity! All boards must be
wired with GND-to-GND and 24 VACto-24 VAC. Failure to observe polarity
could result in damage to the boards.
HSSC Cable
Modular Cable
Connect To
VCM-X WSHP Controller
HSSC Cable
Connect To Other
WattMaster-Approved
E-BUS Expansion Module(s)
24 VAC
GND
PWR
24 VAC Transformer
3 VA Minimum
E
WARNING!!
Observe Polarity! All
boards must be wired
with GND-to-GND and
24 VAC-to-24 VAC.
Failure to observe
polarity could result in
damage to the boards.
LEAVING WATER TEMPERATURE
Figure 5, cont.: VCM-X WSHP Controller to WSHP-X Module Wiring Diagram for Single Water Circuit
Technical Guide
9
WSHP-X Module
Installation & Wiring
VCM-X WSHP E-BUS or SA E-BUS
Controller to WSHP-X Module Wiring
for Single Water Circuit
Any E-BUS Module can be connected to the E-BUS Controller’s E-BUS
port or can be daisy-chained together using HSSC cables.
NOTE: When using the WSHP-X Module, all compressors
will be wired from the WSHP-X Module, not the
VCM-X WSHP E-BUS Controller.
The WSHP-X Module connects to the E-BUS Controller using a modular
HSSC cable. The WSHP-X Module requires a 24 VAC power connection
with an appropriate VA rating. See Figure 6 below for wiring.
OE334-26-WSHPX-A Water Source
Heat Pump X Module
HVAC UNIT
CONNECTIONS
+V
SIG 1
GND
YS102374 REV 0
WATTMASTER CONTROLS
ALARM
MADE IN USA
M
RD
WH
BK
MENU
+V
SIG 1
GND
DOWN
www.orioncontrols.com
OE334-26-WSHPX-A WSHP-X MODULE
NON-DIGITAL COMPRESSORS
SUCT. PR. SENSOR
+5V
PRES 1=A1, PRES 2=A2
PRES
PRES 3=B1, PRES 4=B2
GND
+5 TO RED, PRES TO WHT & GND TO BLK
DIGITAL COMRESSORS
+5V
NOT USED
PRES
PRES 1=A1, PRES 2=A2
GND
PRES 3=B1, PRES 4=B2
+5 NOT USED, PRES TO P6 & GND TO P5
BIN 1
BIN 2
BIN 3
BIN 4
WARNING!! Observe Polarity! All
boards must be wired with GNDto-GND and 24 VAC-to-24 VAC.
Failure to observe polarity could
result in damage to the boards.
BIN6
- COMP. A1 EN.
- COMP. A2 EN.
- COMP. B1 EN.
- COMP. B2 EN.
BIN 5 - HEAT ENABLE
BIN 6 - WATER POF
BIN 7 - WATER POF
COM - COMMON
T 1 - LEAVING WATER TEMP A
T 2 - LEAVING WATER TEMP B
GND - GROUND
COM
T1
WattMaster Label
#SW000054
Rev.: 1A
E-BUS
CONNECT
R1
R2
R3
R4
R5
COMM
COMP. A1 ENABLE
COMP. A2 ENABLE
COMP. B1 ENABLE
COMP. B2 ENABLE
ALARM OUTPUT
AAON NO.: V18330
RELAY CONTACT RATING
IS 1 AMP MAX @ 24 VAC
COMP. A1 ENABLE
R1
COMP. A2 ENABLE
R2
COMP. B1 ENABLE
R3
COMP. B2 ENABLE
R4
ALARM OUTPUT
RELAY COMMON
R5
RC
AO1 DIGITAL STG 1 (1.5-5V)
AO2
DIGITAL STG 2 (1.5-5V)
DIGITAL COMP. A1, A2, B1, B2
STAGE 1- COMP. A1/B1AO1
A2O
STAGE 2 - COMP. A2/B2
CONNECT TO CNTLR C2 TERM.
E-BUS
CONNECT
GND
WATER POF
ENTER
www.aaon.com
GND
CIRCUIT B
SUCTION PRESSURE
TRANSDUCER
UP
GND
24 VAC
RD
WH
BK
+24 VAC
CIRCUIT A
SUCTION PRESSURE
TRANSDUCER
NOTE: ALL RELAY OUTPUTS
ARE NORMALLY OPEN AND
RATED FOR 24 VAC POWER
ONLY
Line Voltage
Connect To Other
WattMaster-Approved
E-BUS Expansion Module(s)
24 VAC Transformer
3 VA Minimum
HSSC Cable
E
WARNING!!
Observe Polarity! All
boards must be wired
with GND-to-GND and 24
VAC-to-24 VAC. Failure
to observe polarity could
result in damage to the
boards.
HSSC Cable
Connect To VCM-X WSHP
E-BUS Controller
LEAVING WATER TEMPERATURE
Figure 6: VCM-X E-BUS Controller to WSHP-X Module Wiring Diagram for Single Water Circuit
10
Technical Guide
WSHP-X Module
Installation & Wiring
NOTE: Contact Factory for the correct HSSC cable length for
your application. Cables are available in ¼, ½, 1, 2, 3,
4, and 5 Meter lengths and 100 and 150 Foot lengths.
WARNING:
Be sure all controllers and modules are
powered down before connecting or
disconnecting HSSC cables.
For Stand Alone Applications,
Connect To System Manager. For Network
Applications Connect To Next Controller
And/Or MiniLink PD On Local Loop.
OE332-23E-VCMX-WSHP
VCM-X Modular
E-BUS Controller
Note:
All Relay Outputs Are Normally Open And
Rated For 24 VAC Power Only.
1 Amp Maximum Load.
Local Loop
RS-485
9600 Baud
RS-485 COMMUNICATION LOOP. WIRE
“R” TO “R”, “T” TO “T” “SHLD” TO “SHLD”
R - 24VAC
RELAY CONTACT
RATING IS 1 AMP
MAX @ 24 VAC
G - Fan ON/OFF Only
RELAY
COMMON
All Comm Loop Wiring Is
Straight Thru
T to T, R to R & SHLD to SHLD
FAN
RELAY 2
RELAY 3
RELAY 4
RELAY 5
Relay Output Contacts
R2 Through R5 May Be User-Configured
For The Following:
1 - Heating Stages
2 - Cooling Stages
3 - Warm-up Mode Command (VAV Boxes)
4 - Reversing Valve (Air To Air Heat Pumps)
5 - Reheat Control (Dehumidification)
6 - Exhaust Fan Interlock
7 - Preheater For Low Ambient Protection
8 - Alarm
9 - Override
10 - Occupied
11 - OA Damper
12 - Heat Wheel
13 - Emergency Heat
Note: 1.) When Using the WSHP-X Module,
All Compressors Will Be Wired From the Module,
Not the VCM-X Controller.
2.) A Total Of 20 Relays Are Available By Adding Relay
Expansion Modules. All Expansion Module Relay
Outputs Are User Configurable As Listed Above.
AAON No.:
V07150
VCM-X MODULAR E-BUS CONTROLLER
Orion No.:OE332-23E-VCMX-MOD-A
AI1 = SPC (SPACE TEMPERATURE SENSOR)
AI2 = SAT (SUPPLY AIR TEMPERATURE SENSOR)
AI3 = RAT (RETURN AIR TEMPERATURE SENSOR)
AI4 = OAT (OUTDOOR AIR TEMPERATURE SENSOR)
AI5 = SUCTION PRESSURE SENSOR (FROM EXP. MODULE)
AI7 = SPACE TEMPERATURE SENSOR SLIDE ADJUST
OR VOLTAGE RESET SOURCE
A01 = ECONOMIZER (2-10 VDC OUTPUT)
A02 = SUPPLY FAN VFD (0-10 VDC OUTPUT)
HSSC Cable Connect To
VCM-X E-BUS Port
E-BUS
CONNECTOR
ANALOG INPUT
JUMPER
SETTINGS
AI1 SET
See Individual
Component
Wiring Diagrams
For Detailed
Wiring Of Analog
Inputs And
Outputs
AI2 SET
STATUS1
STATUS2
0
1
SAT FAIL
1
2
OAT FAIL
2
2
SPC FAIL
3
2
MODULE ALARM
4
2
MECH COOL FAIL
1
3
MECH HEAT FAIL
2
3
FAN PROOF FAIL
3
3
THERM
4-20mA
0-10V
0-5V
DIRTY FILTER
4
3
EMERGENCY SHUTDOWN
5
3
LOW SAT
1
4
THERM
4-20mA
0-10V
0-5V
HIGH SAT
THERM
4-20mA
0-10V
0-5V
PUSH BUTTON OVR
THERM
4-20mA
0-10V
0-5V
AI2
THERM
4-20mA
0-10V
0-5V
THERM
4-20mA
0-10V
0-5V
AI4
AI5
AI3
AI7
LED BLINK CODES
NORMAL OPERATION
AI1
LED NAME
4
3
4
CONT. TEMP HEAT FAIL
4
4
1
5
ZONE OVR
2
5
OUTPUT FORCE ACTIVE
0
6
AI3 SET
ANALOG INPUT JUMPER SETTINGS
MUST BE SET AS SHOWN FOR
PROPER OPERATION
STATIC
PRESSURE
2
CONT. TEMP COOL FAIL
WattMaster Label
#LB102073-01-A
Rev.: 1A
GND
24 VAC POWER ONLY
WARNING! POLARITY MUST BE OBSERVED
OR THE CONTROLLER WILL BE DAMAGED
2
IC
EXPANSION
2
IC DIGITAL
SENSOR
Line Voltage
24VAC
AI4 SET
Size Transformer For Correct
Total Load.
VCM-X Controller = 8 VA
Jumpers
AI5 SET
Splice If Required
AI7 SET
OE271
Static Pressure
Transducer
Connect To Digital Room Sensor And/Or
Digital CO2 Sensor
Connect To
Expansion Module(s)
(When Used)
Warning:
24 VAC Must Be Connected So That All Ground
Wires Remain Common. Failure To Do So Will
Result In Damage To The Controllers.
Connect FRP Tubing To High Pressure
Port (Bottom Tube) And Route To Static
Pressure Pickup Probe Located In Unit
Discharge. Leave Port Marked “Lo” Open
To Atmosphere.
Figure 6, cont.: VCM-X E-BUS Controller to WSHP-X Module Wiring Diagram for Single Water Circuit
Technical Guide
11
WSHP-X Module
Installation & Wiring
VCM-X WSHP or SA Controller to
WSHP-X Module Wiring for Dual
Water Circuit
NOTE: When using the WSHP-X Module, all compressors
will be wired from the WSHP-X Module, not the
VCM-X WSHP Controller or SA Controller.
The VCM-X WSHP Controller or SA Controller communicates with the
WSHP-X Module using the E-BUS Distribution Module. See Figure 7
for wiring details (VCM-X WSHP Controller shown).
For Stand Alone Applications,
Connect To System Manager.
For Network Applications
Connect To Next Controller
And/Or MiniLink PD On Local Loop.
(OE332-23-WSHP-A)
VCM-X WSHP Controller
Note:
All Relay Outputs Are Normally Open And Rated
For 24 VAC Power Only.
1 Amp Maximum Load.
Local Loop
RS-485
9600 Baud
R - 24VAC
G - Fan ON/OFF Only
All Comm Loop Wiring Is
Straight Thru
T to T, R to R & SHLD to SHLD
Relay Output Contacts
R2 Through R5 May Be User Configured
For The Following:
1 - Heating Stages
2 - See Note 1 Below
3 - Warm-up Mode Command (VAV Boxes)
4 - Reversing Valve (Air To Air Heat Pumps)
5 - Reheat Control (Dehumidification)
6 - Exhaust Fan Interlock
7 - Preheater For Low Ambient Protection
8 - Alarm
9 - Override
10 - Occupied
11 - OA Damper
12 - Heat Wheel
Note: 1.) When Using the WSHP-X Module,
All Compressors Will Be Wired From the
Module, Not the VCM-X Controller.
2.) A Total Of 20 Relays Are Available By
Adding Relay Expansion Modules. All
Expansion Module Relay Outputs Are User
Configurable As Listed Above.
See Individual Component
Wiring Diagrams For
Detailed Wiring Of Analog
Inputs And Outputs
AI1 SET
AI5
AI4 SET
AI5 SET
AI2 SET
AI7
AI3 SET
AI4
AI2 SET
AI1 SET
AI1
AI2
AI3
GND
Line Voltage
AI7 SET
AI3 SET
24VAC
Connect To
E-BUS
Distribution
Module
24 VAC
GND
Size Transformer For Correct
Total Load.
VCM-X Controller = 8 VA
AI4 SET
Jumpers
AI5 SET
Splice If Required
AI7 SET
OE271
Static Pressure
Transducer
Connect FRP Tubing To High Pressure
Port (Bottom Tube) And Route To Static
Pressure Pickup Probe Located In Unit
Discharge. Leave Port Marked “Lo” Open
To Atmosphere
Connect To Digital Room Sensor And/Or
Digital CO2 Sensor
Line Voltage
Connect To E-BUS Distribution Module Or
Expansion Module(s)
(When Used)
Warning: 24 VAC Must Be Connected So That All
Ground Wires Remain Common. Failure To Do
So Will Result In Damage To The Controllers.
Figure 7: VCM-X WSHP Controller to WSHP-X Module Wiring Diagram for Dual Water Circuit
12
Technical Guide
WSHP-X Module
Installation & Wiring
CIRCUIT B2
SUCTION PRESSURE TRANSDUCER
BK
WH
RD
CIRCUIT B1
SUCTION PRESSURE TRANSDUCER
BK
WH
RD
CIRCUIT A2
SUCTION PRESSURE TRANSDUCER
BK
WH
RD
CIRCUIT A1
SUCTION PRESSURE TRANSDUCER
BK
WH
RD
OE334-26-WSHPX-A Water Source
Heat Pump X Module
NOTE: ALL RELAY OUTPUTS
ARE NORMALLY OPEN AND
RATED FOR 24 VAC POWER
ONLY
OE365-23-EBD E-BUS
Distribution Module
HVAC UNIT
CONNECTIONS
YS102374 REV 0
WATTMASTER CONTROLS
ALARM
MADE IN USA
M
YS102308
REV 1
I2C TO COMM
DIST. BOARD
UP
MENU
ENTER
www.aaon.com
+COMM
DOWN
www.orioncontrols.com
OE334-26-WSHPX-A WSHP-X MODULE
-COMM
NON-DIGITAL COMPRESSORS
SUCT. PR. SENSOR
+5V
PRES 1=A1, PRES 2=A2
PRES
PRES 3=B1, PRES 4=B2
GND
+VDC
+5 TO RED, PRES TO WHT & GND TO BLK
DIGITAL COMRESSORS
+5V
NOT USED
PRES
PRES 1=A1, PRES 2=A2
GND
PRES 3=B1, PRES 4=B2
INPUT
+5 NOT USED, PRES TO P6 & GND TO P5
+COMM
BIN 1
BIN 2
BIN 3
BIN 4
SHLD
-COMM
WATER POF A
WATER POF B
GND
24VAC
GND
PWR
BIN6
BIN7
COM
T1
T2
- COMP. A1 EN.
- COMP. A2 EN.
- COMP. B1 EN.
- COMP. B2 EN.
BIN 5
BIN 6
BIN 7
COM
- HEAT ENABLE
- WATER POF
- WATER POF
- COMMON
T 1 - LEAVING WATER TEMP A
T 2 - LEAVING WATER TEMP B
GND - GROUND
WattMaster Label
#SW000054
Rev.: 1A
E-BUS
CONNECT
AAON NO.: V18330
RELAY CONTACT RATING
IS 1 AMP MAX @ 24 VAC
COMP. A1 ENABLE
R1
COMP. A2 ENABLE
R2
COMP. B1 ENABLE
R3
COMP. B2 ENABLE
R4
ALARM OUTPUT
RELAY COMMON
R5
RC
AO1 DIGITAL STG 1 (1.5-5V)
AO2
DIGITAL STG 2 (1.5-5V)
DIGITAL COMP. A1, A2, B1, B2
STAGE 1- COMP. A1/B1AO1
A2O
STAGE 2 - COMP. A2/B2
CONNECT TO CNTLR C2 TERM.
E-BUS
CONNECT
GND
SHLD
GND
COMP. A1 ENABLE
COMP. A2 ENABLE
COMP. B1 ENABLE
COMP. B2 ENABLE
ALARM OUTPUT
+24 VAC
OUTPUT
R1
R2
R3
R4
R5
COMM
GND
GND
24 VAC
485 DRV
Line Voltage
WARNING!!
Observe Polarity! All boards
must be wired with GND-toGND and 24 VAC-to-24 VAC.
Failure to observe polarity
could result in damage to the
boards.
HSSC Cable
Modular Cable
Connect To
VCM-X WSHP Controller
HSSC Cable
Connect To Other
WattMaster-Approved
E-BUS Expansion
Module(s)
24 VAC Transformer
3 VA Minimum
E
WARNING!!
Observe Polarity! All
boards must be wired
with GND-to-GND and 24
VAC-to-24 VAC. Failure
to observe polarity could
result in damage to the
boards.
LEAVING WATER TEMPERATURE
FOR SYSTEM A
LEAVING WATER TEMPERATURE
FOR SYSTEM B
Figure 7, cont.: VCM-X WSHP Controller to WSHP-X Module Wiring Diagram for Dual Water Circuit
Technical Guide
13
WSHP-X Module
Installation and Wiring
VCM-X WSHP E-BUS or SA E-BUS
Controller to WSHP-X Module Wiring
for Dual Water Circuit
Any E-BUS Module can be connected to the E-BUS Controller’s E-BUS
port or can be daisy-chained together using HSSC cables.
NOTE: When using the WSHP-X Module, all compressors
will be wired from the WSHP-X Module, not the
VCM-X WSHP E-BUS Controller or SA E-BUS
Controller.
The WSHP-X Module connects to the E-BUS Controller using a modular
HSSC cable. The WSHP-X Module requires a 24 VAC power connection
with an appropriate VA rating. See Figure 8 below for wiring. (VCM-X
WSHP E-BUS Controller shown.)
OE334-26-WSHPX-A Water Source
Heat Pump X Module
CIRCUIT A2
SUCTION PRESSURE
TRANSDUCER
RD
WH
BK
+V
SIG 2
GND
CIRCUIT B1
SUCTION PRESSURE
TRANSDUCER
RD
WH
BK
+V
SIG 1
GND
CIRCUIT B2
SUCTION PRESSURE
TRANSDUCER
RD
WH
BK
+V
SIG 2
GND
HVAC UNIT
CONNECTIONS
YS102374 REV 0
WATTMASTER CONTROLS
ALARM
MADE IN USA
M
MENU
DOWN
www.orioncontrols.com
OE334-26-WSHPX-A WSHP-X MODULE
NON-DIGITAL COMPRESSORS
SUCT. PR. SENSOR
+5V
PRES 1=A1, PRES 2=A2
PRES
PRES 3=B1, PRES 4=B2
GND
+5V
PRES
GND
DIGITAL COMRESSORS
NOT USED
PRES 1=A1, PRES 2=A2
PRES 3=B1, PRES 4=B2
+5 NOT USED, PRES TO P6 & GND TO P5
BIN 1 - COMP. A1 EN.
BIN 2 - COMP. A2 EN.
BIN 3 - COMP. B1 EN.
BIN 4 - COMP. B2 EN.
BIN6
BIN7
COM
T1
T2
BIN 5 - HEAT ENABLE
BIN 6 - WATER POF
BIN 7 - WATER POF
COM - COMMON
T 1 - LEAVING WATER TEMP A
T 2 - LEAVING WATER TEMP B
GND - GROUND
WattMaster Label
#SW000054
Rev.: 1A
E-BUS
CONNECT
R1
R2
R3
R4
R5
COMM
COMP. A1 ENABLE
COMP. A2 ENABLE
COMP. B1 ENABLE
COMP. B2 ENABLE
ALARM OUTPUT
AAON NO.: V18330
RELAY CONTACT RATING
IS 1 AMP MAX @ 24 VAC
COMP. A1 ENABLE
R1
COMP. A2 ENABLE
R2
COMP. B1 ENABLE
R3
COMP. B2 ENABLE
R4
ALARM OUTPUT
RELAY COMMON
R5
RC
AO1 DIGITAL STG 1 (1.5-5V)
AO2
DIGITAL STG 2 (1.5-5V)
DIGITAL COMP. A1, A2, B1, B2
STAGE 1- COMP. A1/B1AO1
A2O
STAGE 2 - COMP. A2/B2
CONNECT TO CNTLR C2 TERM.
E-BUS
CONNECT
GND
WARNING!! Observe Polarity! All
boards must be wired with GND-toGND and 24 VAC-to-24 VAC.
Failure to observe polarity could
result in damage to the boards.
ENTER
www.aaon.com
+5 TO RED, PRES TO WHT & GND TO BLK
WATER POF A
WATER POF B
UP
GND
24 VAC
+V
SIG 1
GND
GND
RD
WH
BK
+24 VAC
CIRCUIT A1
SUCTION PRESSURE
TRANSDUCER
NOTE: ALL RELAY OUTPUTS
ARE NORMALLY OPEN AND
RATED FOR 24 VAC POWER
ONLY
Line Voltage
Connect To Other
WattMaster-Approved
E-BUS Expansion Module(s)
24 VAC Transformer
3 VA Minimum
HSSC Cable
E
WARNING!!
Observe Polarity! All
boards must be wired
with GND-to-GND and 24
VAC-to-24 VAC. Failure
to observe polarity could
result in damage to the
boards.
HSSC Cable
Connect To VCM-X E-BUS
Controller or SA E-BUS Controller
LEAVING WATER TEMPERATURE
FOR SYSTEM A
LEAVING WATER TEMPERATURE
FOR SYSTEM B
Figure 8: VCM-X E-BUS Controller to WSHP-X Module Wiring Diagram for Dual Water Circuit
14
Technical Guide
WSHP-X Module
Installation and Wiring
NOTE: Contact Factory for the correct HSSC cable length for
your application. Cables are available in ¼, ½, 1, 2, 3,
4, and 5 Meter lengths and 100 and 150 Foot lengths.
WARNING:
Be sure all controllers and modules are
powered down before connecting or
disconnecting HSSC cables.
For Stand Alone Applications,
Connect To System Manager. For Network
Applications Connect To Next Controller
And/Or MiniLink PD On Local Loop.
Note:
All Relay Outputs Are Normally Open And
Rated For 24 VAC Power Only.
1 Amp Maximum Load.
OE332-23E-VCMX-WSHP
VCM-X Modular
E-BUS Controller
Local Loop
RS-485
9600 Baud
RS-485 COMMUNICATION LOOP. WIRE
“R” TO “R”, “T” TO “T” “SHLD” TO “SHLD”
R - 24VAC
RELAY CONTACT
RATING IS 1 AMP
MAX @ 24 VAC
G - Fan ON/OFF Only
RELAY
COMMON
All Comm Loop Wiring Is
Straight Thru
T to T, R to R & SHLD to SHLD
FAN
RELAY 2
RELAY 3
RELAY 4
RELAY 5
Relay Output Contacts
R2 Through R5 May Be User-Configured
For The Following:
1 - Heating Stages
2 - Cooling Stages
3 - Warm-up Mode Command (VAV Boxes)
4 - Reversing Valve (Air To Air Heat Pumps)
5 - Reheat Control (Dehumidification)
6 - Exhaust Fan Interlock
7 - Preheater For Low Ambient Protection
8 - Alarm
9 - Override
10 - Occupied
11 - OA Damper
12 - Heat Wheel
13 - Emergency Heat
Note: 1.) When Using the WSHP-X Module,
All Compressors Will Be Wired From the Module,
Not the VCM-X Controller.
2.) A Total Of 20 Relays Are Available By Adding Relay
Expansion Modules. All Expansion Module Relay Outputs
Are User Configurable As Listed Above.
AAON No.:
V07150
VCM-X MODULAR E-BUS CONTROLLER
Orion No.:OE332-23E-VCMX-MOD-A
AI1 = SPC (SPACE TEMPERATURE SENSOR)
AI2 = SAT (SUPPLY AIR TEMPERATURE SENSOR)
AI3 = RAT (RETURN AIR TEMPERATURE SENSOR)
AI4 = OAT (OUTDOOR AIR TEMPERATURE SENSOR)
AI5 = SUCTION PRESSURE SENSOR (FROM EXP. MODULE)
AI7 = SPACE TEMPERATURE SENSOR SLIDE ADJUST
OR VOLTAGE RESET SOURCE
A01 = ECONOMIZER (2-10 VDC OUTPUT)
A02 = SUPPLY FAN VFD (0-10 VDC OUTPUT)
HSSC Cable Connect To
VCM-X E-BUS Port
E-BUS
CONNECTOR
ANALOG INPUT
JUMPER
SETTINGS
AI1 SET
See Individual
Component Wiring
Diagrams For
Detailed Wiring Of
Analog Inputs And
Outputs
AI1
THERM
4-20mA
0-10V
0-5V
LED BLINK CODES
STATUS1
STATUS2
NORMAL OPERATION
0
1
SAT FAIL
LED NAME
1
2
AI2 SET
THERM
4-20mA
0-10V
0-5V
OAT FAIL
2
AI2
SPC FAIL
3
MODULE ALARM
4
MECH COOL FAIL
1
3
AI3
THERM
4-20mA
0-10V
0-5V
MECH HEAT FAIL
2
3
FAN PROOF FAIL
3
3
DIRTY FILTER
4
3
AI4
THERM
4-20mA
0-10V
0-5V
AI5
THERM
4-20mA
0-10V
0-5V
THERM
4-20mA
0-10V
0-5V
PUSH BUTTON OVR
1
5
ZONE OVR
2
5
OUTPUT FORCE ACTIVE
0
6
AI7
2
EMERGENCY SHUTDOWN
5
3
LOW SAT
1
4
HIGH SAT
2
4
CONT. TEMP COOL FAIL
3
4
CONT. TEMP HEAT FAIL
4
4
AI3 SET
ANALOG INPUT JUMPER SETTINGS
MUST BE SET AS SHOWN FOR
PROPER OPERATION
STATIC
PRESSURE
2
2
WattMaster Label
#LB102073-01-A
Rev.: 1A
GND
Line Voltage
24 VAC POWER ONLY
WARNING! POLARITY MUST BE OBSERVED
OR THE CONTROLLER WILL BE DAMAGED
2
IC
EXPANSION
24VAC
2
IC DIGITAL
SENSOR
AI4 SET
Size Transformer For Correct
Total Load.
VCM-X Controller = 8 VA
Jumpers
AI5 SET
Splice If Required
Connect To Digital Room Sensor And/Or
Digital CO2 Sensor
AI7 SET
Connect To
Expansion Module(s)
(When Used)
OE271
Static Pressure
Transducer
Warning:
24 VAC Must Be Connected So That All Ground
Wires Remain Common. Failure To Do So Will
Result In Damage To The Controllers.
Connect FRP Tubing To High Pressure
Port (Bottom Tube) and Route To Static
Pressure Pickup Probe Located In Unit
Discharge. Leave Port Marked “Lo” Open
To Atmosphere
Figure 8, cont.: VCM-X E-BUS Controller to WSHP-X Module Wiring Diagram for Dual Water Circuit
Technical Guide
15
WSHP-X Module
Start-Up & Commissioning
General
In order to have a trouble free start-up, it is important to follow a few
simple procedures. Before applying power for the first time, it is very
important to run through a few simple checks.
One of the most important checks to make before powering up the
system for the first time is to make sure that the VCM-X WSHP Series
Controller or SA Series Controller is configured properly for your application. Refer to the VCM-X Controller Technical Guide, VCM-X
Modular E-BUS Controller Technical Guide, SA Controller Technical
Guide, or SA E-BUS Controller Technical Guide for more information.
NOTE: The SA Series Controller does not utilize the System
Manager Touch Screen.
Check all wiring leads at the terminal block for tightness. Be sure that
wire strands do not stick out and touch adjacent terminals. Confirm
that all sensors required for your system are mounted in the appropriate
location and wired into the correct terminals.
WARNING:
A handheld Modular Service Tool, Modular System Manager, or System
Manager Touch Screen connected to the VCM-X WSHP Series Controller or SA Series Controller will allow you to configure your application.
Refer to the VCM-X Operator’s Interfaces Technical Guide, SA Operator
Interfaces Technical Guide, or System Manager TS Technical Guide for
more information.
Observe polarity! All boards must be wired
GND-to-GND and 24 VAC-to-VAC. Failure to
observe polarity could result in damage to the
boards.
UNIT CONFIGURATIONS
SYSTEM A
PERMUTATION
SYSTEM B
VCM-X WSHP
CONFIGURATION
SA
CONFIGURATION
Comp A1
Comp A2
Comp B1
Comp B2
Relay 1
Relay 2
Relay 3
Relay 4
1
On/Off
On/Off
—
—
2 Compressors
2
Digital
On/Off
—
—
2 Compressors
Digital Compressor
2 Compressors
Single Unit SA
3
Digital
Digital
—
—
2 Compressors
Full Digital
2 Compressors
Single Unit SA
4
On/Off
On/Off
On/Off
On/Off
4 Compressors
—
5
Digital
On/Off
On/Off
On/Off
Not Available
—
6
Digital
On/Off
Digital
On/Off
4 Compressors
Digital Compressor
4 Compressors
Dual Unit SA
7
Digital
Digital
Digital
Digital
4 Compressors
Full Digital
4 Compressors
Dual Unit SA
—
In the Cooling Mode, the Compressors will stage in the following order:
Permutations 1, 2 & 3: Compressor A1 -> Compressor A2
Permutations 4: Compressor A1 -> Compressor B1 -> Compressor A2 -> Compressor B2
Permutations 6: Compressor A1 & Compressor B1 -> Compressor A2 -> Compressor B2
Permutations 7: Compressor A1 & Compressor B1 -> Compressor A2 & Compressor B2
In the Dehumidification Mode, the Compressors will stage in the following order:
Permutation 4: Compressor A1 & Compressor B1 -> Compressor A2 -> Compressor B2
All other permutations in the Dehumidification Mode stage as described in the Cooling Mode.
Table 1: Unit Configurations Chart
16
Technical Guide
WSHP-X Module
Sequence of Operation
General
WSHP-X Module Setpoints
The following inputs and outputs are available on the WSHP-X Module.
See Table 2 below to reference the Input/Output Map.
The WSHP-X Module setpoints are preset at AAON and are based on
the unit’s design as well as the type of coolant being used in the water
loop. See Tables 3 & 4 for default settings.
Binary Inputs
NOTE: These are default settings only. The setpoints may be
different based on the unit’s design and coolant being
used.
1
Compressor A1 Enable (BIN 1)
2
Compressor A2 Enable (BIN 2)
3
Compressor B1 Enable (BIN 3)
4
Compressor B2 Enable (BIN 4)
5
Heat Enable (BIN 5)
6
Water Proof of Flow System A (BIN 6)
7
Water Proof of Flow System B (BIN 7)
Analog Inputs
Water-Only Default Setpoints
Description
R410-A
R22
1
Suction Pressure A1 (Pres 1)
2
Suction Pressure A2 (Pres 2)
UNSAFE SUCTION
40 PSIG
20 PSIG
3
Suction Pressure B1 (Pres 3)
LOW SUCTION HEAT MODE
100 PSIG
57 PSIG
4
Suction Pressure B2 (Pres 4)
5
Leaving Water Temperature System A (T1)
LOW SUCTION COOL MODE
85 PSIG
57 PSIG
6
Leaving Water Temperature System B (T2)
LOW LEAVING WATER TEMP
37ºF
37ºF
Analog Outputs (1-5 VDC or 0-10 VDC)
1
Digital Stage 1 (Compressors A1 & B1) (AOUT1)
2
Digital Stage 2 (Compressors A2 & B2) (AOUT2)
Table 3: Factory-Set Default Setpoints - Water Only
NOTE: Analog Outputs are not used on Stand
Alone Application
Relay Outputs (24 VAC)
1
Compressor A1 Enable Output (RLY1)
2
Compressor A2 Enable Output (RLY2)
3
Compressor B1 Enable Output (RLY3)
4
Compressor B2 Enable Output (RLY4)
5
Alarm Output (RLY5)
Table 2: WSHP-X Module Inputs & Outputs
Technical Guide
17
WSHP-X Module
Sequence of Operation
Glycol Default Setpoints
R22
R410-A R410-A R410-A
0%
0%
5%
10%
Glycol Glycol Glycol Glycol
R410-A R410-A R410-A R410-A R410-A R410-A
15%
20%
25%
30%
35%
40%
Glycol Glycol Glycol Glycol Glycol Glycol
UNSAFE
SUCTION
20 PSIG
40 PSIG
40 PSIG
40 PSIG
40 PSIG
40 PSIG
40 PSIG
40 PSIG
40 PSIG
40 PSIG
LOW SUCTION
HEAT MODE
57 PSIG
100 PSIG
93 PSIG
87 PSIG
82 PSIG
75 PSIG
65 PSIG
58 PSIG
49 PSIG
45 PSIG
LOW SUCTION
COOL MODE
57 PSIG
87 PSIG
85 PSIG
85 PSIG
85 PSIG
85 PSIG
85 PSIG
85 PSIG
85 PSIG
85 PSIG
LOW LEAVING
WATER TEMP
37ºF
37ºF
34ºF
30ºF
27ºF
20ºF
15ºF
9ºF
2ºF
0ºF
Description
Table 4: Factory-Set Default Setpoints - Glycol
Stand-Alone Input Commands
Compressor On/Off
A 24 volt signal to Binary Inputs #1-4 initiates each Compressor’s On
function. The source for this signal would typically come from Y1 to
Y4 calls from the thermostat.
Heat Enable On/Off
A 24 volt signal on this input indicates the unit is in the Heating Mode.
Typically, the source for this signal is the “O” call from the thermostat.
Input Commands (VCM-X WSHP or SA
Connection)
NOTE: When the term “ON” is used, it means there is either 24
VAC on the appropriate Binary Input or a call-to-run
signal is being received from the VCM-X WSHP Series
or SA Series Controller. When the term “OFF” is used,
it means there is either 0 VAC on the appropriate Binary
Input or the call-to-run signal from the VCM-X WSHP
or SA has been removed.
Water Proof of Flow System On/Off
Compressor On/Off
A 24 volt signal to Binary Inputs #6-7 indicates Water Proof of Flow
for each system.
Instead of a physical input signaling the Compressor On/Off function,
the VCM-X WSHP Series Controller or SA Series Controller communications drives the Compressor On/Off function.
Suction Pressure Analog Inputs
Sensors from Analog Inputs #1-4 correlate with the Suction Pressure of
each Compressor (250 PSI).
Heat Enable On/Off
As with the Compressor On/Off function, the VCM-X WSHP Series or
SA Series Controller communicates to the Module that it is in Heat Mode.
Leaving Water Temperature Thermistor Inputs
T1 correlates with Compressors A1 & A2 (RLY1 and RLY2). T2 correlates with Compressors B1 & B2 (RLY3 and RLY4).
18
Revised: 6/13/13
Technical Guide
WSHP-X Module
Sequence of Operation
Modes of Operation
NOTE: See the Unit Configurations Chart on page 16 for more
information about compressor staging.
Digital Stage 1 / Digital Stage 2
On units with two Digital Scroll Compressors, the first compressor (A1)
will be designated as Digital Stage 1 and the second compressor (A2)
will be designated as Digital Stage 2.
On units with four Digital Scroll Compressors, there may be instances
where compressor numbers on the module do not correlate with the
mechanical compressors’ numbers. Therefore, Digital Stage 1 refers to
the first set of Digital Scroll Compressors (A1/B1) that will stage on
together and Digital Stage 2 refers to the second set of Digital Scroll
Compressors (A2/B2) that will stage on together. Please refer to AAON’s
wiring diagram for specific wiring of the unit.
Compressor Operation (Heat/Cool)
Digital Scroll Compressor Control
When a Cool Signal is received, the WSHP-X Module will go into Cooling Mode. Once Proof of Water Flow has been made and a start-up delay
has been met, Compressor A1 (and B1*) will energize and Digital Stage 1
Analog Output will go to 50% and modulate as necessary to maintain the
Supply Air Temperature at the Active Supply Air Setpoint that is broadcast from the VCM-X WSHP Series Controller or SA Series Controller.
When Digital Stage 1 reaches 100%, a stage up timer is started. If Digital
Stage 1 stays at 100% for the stage up timer, Compressor A2 (and B2*)
will energize and both Digital Stage 1 and Digital Stage 2 outputs will
go to 50% and will begin to modulate together.
If both systems are energized and they go below 30% and the Supply Air
is below the Supply Air Setpoint by the Cooling Stage Window value,
the stage down timer is started. If the systems remain below 30% for
the duration of the stage down timer, Digital Stage 2 will deactivate and
Digital Stage 1 will go to 60%. Digital Stage 1 will stage down if it is
at 0% for the duration of the stage down timer.
* If configured for 4 modulating compressors.
Heat Pump Heating Mode
A compressor can energize if the following is true:
1. There is 24 VAC applied to the appropriate Binary Input for
the Compressor.
2. If two compressors are enabled simultaneously, a 5 second
staging delay will occur.
3. Suction Pressure is above the Low Suction Pressure Cooling
(Heating) Setpoint.
4. Proof of Flow for the appropriate water loop is made.
5. Leaving Water Temp is above the Leaving Water Safety
Setpoint (Heating Only).
6. A minimum off time of 3 minutes is met for that compressor.
NOTE: If the WSHP-X Module receives a signal on the Heat
Enable input, it will operate using the Heating Mode
Setpoints.
Cooling Mode
NOTE: Control of digital compressor(s) is only available when
the WSHP-X Module is connected to the VCM-X WSHP
Series Controller or SA Series Controller.
Fixed Compressors Only
When a Cool Signal is received, the WSHP-X Module will go into
Cooling Mode. Once Proof of Water Flow has been made, they will
sequentially stage according to Table 1 on page 16, using Stage Up and
Stage Down delays to maintain the Supply Air Setpoint that is broadcast
from the VCM-X WSHP Series Controller or SA Series Controller.
Technical Guide
Heating Mode works the same as Cooling Mode except the Reversing
Valve is switched and the sequence is opposite. Compressors modulate
up when below the Heating Supply Air Setpoint and modulate down
when above the setpoint.
Dehumidification Mode
Fixed Compressors Only
In the Dehumidification Mode, if this unit has only fixed compressors,
they will sequentially stage according to Table 1 on page 16 to maintain
the Suction Pressure Setpoint. Compressors A1 & B1 will stage on together first followed sequentially by A2 & then B2. Stage Up and Stage
Down delays will apply.
Digital Scroll Compressor Control
In Dehumidification Mode, compressors will be controlled to maintain
the Suction Pressure Temperature Setpoint. Digital Stage 1—Compressor A1 (and B1*) will modulate up to 100% before Digital Stage 2—
Compressor A2 (and B2*) can be energized. When Digital Stage 2 is
energized, Digital Stage 1 will be locked at 100%.
* If configured for 4 modulating compressors.
Staging Delays
Staging Delays minimum run times and minimum off times are sent from
the VCM-X WSHP Series Controller or SA Series Controller.
Revised: 12/16/13
19
WSHP-X Module
Navigation Keys
LCD Display Screen & Navigation
Keys
Navigation Key
Key Function
MENU
Use the MENU key to navigate through the
Main Menu Screens
UP
Use this key to adjust setpoints and change
configurations. This key is also used to turn
Valve Force Mode on.
DOWN
Use this key to adjust setpoints and change
configurations. This key is also used to turn
Valve Force Mode off.
ENTER
Use the Enter key to move through screens
within Main Menu categories. Also, use this
key to save setpoints and configuration
changes.
The WSHP-X Controller allows you to make configuration changes, view
status, change setpoints, create force modes, and perform diagnostics
using the keypad next to the LCD display. See Figure 9 and refer to
Table 5 for descriptions.
Figure 9: LCD Display and Navigation Keys
Table 5: Navigation Key Functions
20
Technical Guide
WSHP-X Module
Main Screens Map and WSHP Screens
Main Screens Map
WSHP Screens
Refer to the following map when navigating through the LCD Main
Screens. The first screen is the address screen. To scroll through the rest
of the screens, press the <MENU> button.
Refer to the following map when navigating through the Main Screens.
From the WSHP AAON Screen, press <ENTER> to scroll through
the screens.
ADDRESS
#
WSHP
AAON
Press
WSHP
AAON
S/A or
COMM MODE or
COM T/O ERROR
to scroll through WSHP Screens.
In Stand-Alone Mode, the screen will only display S/A MODE.
Press
to go to ALARM Screens.
ALARMS
In Communications Mode, the screen will display COMM MODE and the
items below will scroll through the screen:
1. Number of good packets being received. This will roll over after 9999.
Example: +XXXX
2. Number of checksum errors. This will stop at 9999. Example: C-XXXX
3. Number of packet length errors. This will stop at 9999 until power is
cycled. Example: P-XXXX
Press
to scroll through ALARMS Screens.
Press
to go to STATUS SYSTEM A Screens.
STATUS
SYSTEM A
SOFTWARE
1053v100
CURRENT SOFTWARE VERSION
Press
to scroll through STATUS SYSTEM A Screens.
Press
to go to STATUS SYSTEM B Screens.
STATUS
SYSTEM B
Press
to scroll through STATUS SYSTEM B Screens.
Press
to go to SETPOINT Screens.
SETPOINT
Press
H20 CNFG
SINGLE or DUAL
WATER CIRCUIT CONFIGURATION
SINGLE (Typical for AAON Coil) or DUAL (Typical for AAON Tulsa)
REV VALV
OFF=COOL or
OFF=HEAT
REVERSING VALVE CONFIGURATION
OFF=COOL (No signal on reversing valve input equals cool mode)
OFF=HEAT (No signal on reversing valve input equals heat mode)
to scroll through SETPOINT Screens.
ADDRESS
#
Technical Guide
21
WSHP-X Module
Alarm Screens
Alarm Screens
Refer to the following map when viewing the Alarm Screens. These
screens will display automatically when alarms are present.
ALARMS
ALARMS
The alarms are as follows:
NO ALARMS: This will be shown if there are no current alarms.
COMPRESSOR LOCKOUT (1-4):
•
If a circuit’s Suction Pressure falls below the Low Suction
Pressure Setpoint for longer than one minute twice within a
two hour window, the compressor on that circuit will be
locked out. Manual reset or change of mode is required to
return to normal operation.
•
If the Suction Pressure falls below the Unsafe Suction
Setpoint for 5 seconds, that circuit’s compressor will locked
out. Power will need to be cycled to restart the unit.
•
If the Leaving Water Temperature falls below setpoint,
the last compressor will be locked out until the Leaving Water
Temperature rises 6 degrees above setpoint.
•
The Leaving Water Temperature remains below setpoint for
1 minute or falls 3 degrees below setpoint. This alarm will
disable when the leaving water temperature rises 12 degrees
above the setpoint.
LOW H2O: The Leaving Water Temperature has dropped below setpoint. This alarm will disable when the leaving water temperature rises 6
degrees above the setpoint.
NO PROOF OF FLOW: There is a call for a compressor and there is
no Proof of Flow Input Enable for more than 3 minutes or if during Heat
Pump heating, the Proof of Flow Enable is open for more than 2 seconds. This alarm will disable when Proof of Flow is enabled.
LOW SUCTION PRESSURE: The Circuit’s Suction Pressure has
dropped below the Low Suction Pressure for longer than one minute.
This alarm will disable ten minutes after Suction Pressure rises above
the setpoint.
22
Technical Guide
WSHP-X Module
System Status A Screens
System Status A Screens
Refer to the following map when navigating through the System Status
A Screens. From the SYSTEM STATUS A Screen, press <ENTER> to
scroll through the screens.
PO FLOW
YES or NO
PROOF OF WATER FLOW
SYSTEM
STATUS A
Status Screens shown below will scroll automatically if LCD display is
left on this screen for 20 seconds.
A1 PRES
XXX
SYSTEM A, COMPRESSOR 1 PRESSURE READING
A1 COMP
OFF,PENDING,ON or
Reason for Fail
SYSTEM A, COMPRESSOR 1
This screen displays the current status of the A1 Compressor.
A2 PRES
XXX or NOT USED
OFF
PENDING: Compressor is off, but a request is made to be on, but the
1 minimum off time has not been met.
SYSTEM A, COMPRESSOR 2 PRESSURE READING
If Single Water Configuration, this screen will display “NOT USED.”
ON: HEAT or Cool
REASON FOR FAILURE: Low Pres, Lockout, Low H2O, No Flow
AOUT1
X%
A2 COMP
OFF,PENDING,ON or
Reason for Fail
ANALOG OUTPUT 1 PERCENT
0 - 100%
SYSTEM A, COMPRESSOR 2
This screen displays the current status of the A2 Compressor.
OFF
PENDING: Compressor is off, but a request is made to be on, but the
1 minimum off time has not been met.
AOUT2
X%
ON: HEAT or Cool
REASON FOR FAILURE: Low Pres, Lockout, Low H2O, No Flow
ANALOG OUTPUT 2 PERCENT
0 - 100%
H2O TEMP
NO SENSR
LEAVING WATER TEMPERATURE READING
OR “NO SENSOR”
Technical Guide
23
WSHP-X Module
System Status B Screens
System Status B Screens
Refer to the following map when navigating through the System Status
B Screens. From the SYSTEM STATUS B Screen, press <ENTER> to
scroll through the screens.
H2O TEMP
NO SENSR
LEAVING WATER TEMPERATURE READING
OR “NO SENSOR”
SYSTEM B
DISABLED
If System B is disabled, the above screen will appear.
SYSTEM
STATUS B
PO FLOW
YES or NO
PROOF OF WATER FLOW
Status Screens shown below will scroll automatically if LCD display is
left on this screen for 20 seconds.
B1 PRES
XXX
B1 COMP
OFF,PENDING,ON or
Reason for Fail
SYSTEM B, COMPRESSOR 1 PRESSURE READING
SYSTEM B, COMPRESSOR 1
This screen displays the current status of the B1 Compressor.
OFF
PENDING: Compressor is off, but a request is made to be on, but the
1 minimum off time has not been met.
ON: HEAT or Cool
REASON FOR FAILURE: Low Pres, Lockout, Low H2O, No Flow
B2 COMP
OFF,PENDING,ON or
Reason for Fail
B2 PRES
XXX or NOT USED
SYSTEM B, COMPRESSOR 2 PRESSURE READING
If Single Water Configuration, this screen will display “NOT USED.”
AOUT1
X%
SYSTEM B, COMPRESSOR 2
ANALOG OUTPUT 1 PERCENT
This screen displays the current status of the B2 Compressor.
0 - 100%
OFF
PENDING: Compressor is off, but a request is made to be on, but the
1 minimum off time has not been met.
ON: HEAT or Cool
REASON FOR FAILURE: Low Pres, Lockout, Low H2O, No Flow
AOUT2
X%
ANALOG OUTPUT 2 PERCENT
0 - 100%
24
Technical Guide
WSHP-X Module
Setpoint Screens
Setpoint Status Screens
UNSAFESP
40 PSI
Refer to the following map when navigating through the Setpoint Status Screens. From the SETPOINTS Screen, press <ENTER> to scroll
through the screens.
UNSAFE SUCTION PRESSURE SETPOINT
NOTE: The following screens are Status Screens. The Setpoints
can’t be changed from these screens.
See Table below.
Refrigerant
Unsafe
Suction
Setpoint
Refrigerant
Unsafe
Suction
Setpoint
R410A
40 PSI
R22
20 PSI
SETPOINTS
GLYCOL
xx%
LOWSP HT
XXX-XXX PSI
GLYCOL SETPOINT
0%, 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%
LOW SUCTION PRESSURE HEAT MODE SETPOINT
See Table below.
Glycol %
Low Suction
Heat Setpoint
Glycol %
Low Suction
Heat Setpoint
0% (R22)
57 PSI
20%
75 PSI
0% (410A)
100 PSI
25%
65 PSI
5%
93 PSI
30%
58 PSI
10%
87 PSI
35%
49 PSI
401A or R22
15%
82 PSI
40%
45 PSI
(If R22, Glycol Setpoint will default to 0%)
REFRIGNT
410A or R22
REFRIGERANT
LOW H2O
XX DEG
LOWSP CL
57 PSI or
85 PSI
LOW SUCTION PRESSURE COOL MODE SETPOINT
LOW LEAVING WATER TEMPERATURE SETPOINT
See Table below.
See Table below.
Refrigerant
Low Suction
Cool Setpoint
Refrigerant
Low Suction
Cool Setpoint
R410A
85 PSI
R22
57 PSI
Technical Guide
Glycol %
Low Leaving
Water
Temperature
Setpoint
Glycol %
Low Leaving
Water
Temperature
Setpoint
0% (R22)
37 ºF
20%
20 ºF
0% (410A)
37 ºF
25%
15 ºF
5%
34 ºF
30%
9 ºF
10%
30 ºF
35%
2 ºF
15%
27 ºF
40%
0 ºF
25
WSHP-X Module
Troubleshooting
Safety Monitoring for Single Water
Circuit
Proof of Flow
1. If there is a call for a compressor and there is no Proof of Flow
Input Enable:
•
The module will wait up to 3 minutes to activate
the Proof of Flow Alarm LED(s) which will blink
the code indicating failure.
2. If the compressor(s) is (are) running and contact is opened for
2 seconds during Heat Pump Heating:
•
Low Leaving Water Temperature
NOTE: This safety monitoring is only performed in the Heat
Mode.
1. If the Leaving Water Temperature falls below setpoint, the
following will occur:
•
The last compressor will turn off.
•
Alarm LED will indicate Compressor Low Water
Temp Shutoff.
•
Last compressor will be locked out until the
Leaving temperature is 6 degrees above setpoint.
Compressor(s) will be turned off.
3. If the compressor(s) are running and contact is opened for 2
seconds during Cooling:
•
Proof of Flow Input will be ignored.
•
No alarm will be generated.
Low Suction Pressure Detection
2. If the Leaving Water Temperature remains below setpoint for
1 minute or falls 3 degrees below setpoint, the following will
occur:
•
All compressors will deactivate.
•
Alarm LED will indicate Compressor Low
Water Temperature Shutoff.
•
All compressors will be locked out until the
Leaving Temperature is 12 degrees above setpoint.
1. If any Circuit’s Suction Pressure falls below the Low Suction
Pressure Setpoint for longer than 1 minute, then the following
will occur:
•
The compressor(s) on that circuit will turn off.
•
Alarm LED will indicate Low Suction Pressure.
•
Compressor(s) will be enabled again after 10
minutes if Suction Pressure rises above setpoint.
2. If any Circuit’s Suction Pressure falls below the Low Suction
Pressure Setpoint for longer than 1 minute a second time
within a two hour window, then the following will occur:
•
The compressor(s) on that circuit will be locked out.
•
Alarm LED will indicate a Compressor Lockout.
•
Manual reset or change of mode (i.e., Cool to Heat)
must occur to reset back to normal operation.
Unsafe Suction Pressure Detection
If the Suction Pressure falls below the Unsafe Suction Setpoint for 5
seconds, the circuit’s compressor will be locked out immediately and
will not be allowed to restart. You will need to reset the Power to restart
the unit.
26
Technical Guide
WSHP-X Module
Troubleshooting
Safety Monitoring for Dual Water
Circuit
2. If any Compressor’s Suction Pressure falls below the Low
Suction Pressure Setpoint for longer than 1 minute a second
time within a two hour window, then the following will occur:
Proof of Flow
•
That compressor will be locked out.
There are separate inputs for System A and System B. System A provides water for Compressors A1 & A2 and System B provides water
for Compressors B1 & B2.
•
Alarm LED will indicate a Compressor Lockout.
•
Manual reset or change of mode (i.e., Cool to Heat)
must occur to reset back to normal operation.
1. If there is a call for a compressor and there is no Proof of Flow
Input Enable:
•
The module will wait up to 3 minutes to activate
the Proof of Flow Alarm LED(s) which will blink
the code indicating failure.
•
Proof of Water Flow A will disable compressors A1
and A2.
•
Proof of Water Flow B will disable compressors B1
and B2.
2. If the compressor(s) is (are) running and contact is opened for
2 seconds during Heat Pump Heating:
•
Compressor(s) will be turned off.
•
Proof of Water Flow A will disable compressors A1
and A2.
•
Proof of Water Flow B will disable compressors B1
and B2.
3. If the compressor(s) are running and contact is opened for 2
seconds during Cooling:
•
Proof of Flow Input will be ignored.
•
No alarm will be generated.
Unsafe Suction Pressure Detection
If the Suction Pressure falls below the Unsafe Suction Setpoint for 5
seconds, the compressor will be locked out immediately and will not be
allowed to restart. You will need to reset the Power to restart the unit.
Low Leaving Water Temperature
NOTE: This safety monitoring is only performed in the Heat
Mode.
On the larger units, there are two separate condenser/water sections and
each section (water system) has its own Leaving Water Temperature
Sensor. Each sensor will only affect the compressors associated with
that condenser/water section. The description below describes System
A. System B works the same but will affect Compressors B1 & B2.
1. If the Leaving Water Temperature for System A falls below
setpoint, the following will occur:
•
Compressor A2 will deactivate if active.
•
Alarm LED will indicate Compressor A2 Low
Water Temp Shutoff.
•
Compressor A2 will be locked out until the Leaving
temperature is 6 degrees above setpoint.
Low Suction Pressure Detection
1. If any Compressor’s Suction Pressure falls below the Low
Suction Pressure Setpoint for longer than 1 minute, then the
following will occur:
2. If the Leaving Water Temperature for System A remains below
setpoint for 1 minute or falls 3 degrees below setpoint, the
following will occur:
•
The compressor will turn off.
•
Compressor A1 will deactivate.
•
Alarm LED will indicate Low Suction Pressure.
•
Alarm LED will indicate Compressor A1 & A2 Low
Water Temperature Shutoff.
•
Compressor will be enabled again after 10 minutes
if Suction Pressure rises above setpoint.
•
Both Compressors will be locked out until the
Leaving Temperature is 12 degrees above setpoint.
Technical Guide
27
WSHP-X Module
Troubleshooting
Temperature Sensor Testing
The following sensor voltage and resistance tables are provided to aid in
checking sensors that appear to be operating incorrectly. Many system
operating problems can be traced to incorrect sensor wiring. Be sure all
sensors are wired per the wiring diagrams in this manual.
If the sensors still do not appear to be operating or reading correctly,
check voltage and/or resistance to confirm that the sensor is operating
correctly per the tables. Please follow the notes and instructions below
each chart when checking sensors.
Temperature – Resistance – Voltage for
Type III 10 K Ohm Thermistor Sensors
Temperature – Resistance – Voltage for
Type III 10 K Ohm Thermistor Sensors
Temp
(ºF)
Resistance
(Ohms)
Voltage @
Input (VDC)
74
10625
2.635
75
10398
2.607
76
10158
2.577
78
9711
2.520
80
9302
2.465
82
8893
2.407
84
8514
2.352
86
8153
2.297
88
7805
2.242
90
7472
2.187
Temp
(ºF)
Resistance
(Ohms)
Voltage @
Input (VDC)
-10
93333
4.620
-5
80531
4.550
95
6716
2.055
6047
1.927
0
69822
4.474
100
5
60552
4.390
105
5453
1.805
4923
1.687
10
52500
4.297
110
15
45902
4.200
115
4449
1.575
20
40147
4.095
120
4030
1.469
125
3656
1.369
130
3317
1.274
135
3015
1.185
140
2743
1.101
145
2502
1.024
150
2288
0.952
25
35165
3.982
30
30805
3.862
35
27140
3.737
40
23874
3.605
45
21094
3.470
50
18655
3.330
52
17799
3.275
54
16956
3.217
56
16164
3.160
58
15385
3.100
60
14681
3.042
62
14014
2.985
64
13382
2.927
66
12758
2.867
68
12191
2.810
69
11906
2.780
70
11652
2.752
71
11379
2.722
72
11136
2.695
73
10878
2.665
Table 5, cont.: Temperature/Resistance for Type III
10K Ohm Thermistor Sensors
Thermistor Sensor Testing Instructions
Use the resistance column to check the thermistor sensor while disconnected from the controllers (not powered).
Use the voltage column to check sensors while connected to powered
controllers. Read voltage with meter set on DC volts. Place the “-”
(minus) lead on GND terminal and the “+” (plus) lead on the sensor
input terminal being investigated.
If the voltage is above 5.08 VDC, then the sensor or wiring is “open.”
If the voltage is less than 0.05 VDC, then the sensor or wiring is
shorted.
Table 5: Temperature/Resistance for Type III 10K
Ohm Thermistor Sensors
28
Technical Guide
WSHP-X Module
Troubleshooting
Temperature
°F
Pressure
PSI
Signal
DC Volts
Temperature
°F
Pressure
PSI
Signal
DC Volts
20.00
31.13
1.0
55.32
93.39
2.0
20.00
37.36
1.1
58.86
99.62
2.1
20.46
43.58
1.2
62.13
105.84
2.2
25.71
49.80
1.3
65.27
112.07
2.3
30.84
56.03
1.4
68.42
118.29
2.4
35.41
62.26
1.5
71.39
124.52
2.5
39.98
68.49
1.6
75.20
130.75
2.6
44.00
74.71
1.7
77.00
136.97
2.7
48.00
80.94
1.8
79.80
143.20
2.8
51.78
87.16
1.9
80.00
149.42
2.9
Pressure
PSI
Signal
DC Volts
OE275-01 Suction Pressure Transducer Coil Pressure
– Temperature – Voltage Chart for R-22 Refrigerant
Temperature
°F
See the OE275-01 Suction Pressure Transducer, Pressure, Temperature,
and Voltage Charts for R-22 and R410-A Refrigerant testing (Tables
6 & 7). The charts show a temperature range from 20°F to 80°F. For
troubleshooting purposes, the DC Voltage readings are also listed with
their corresponding temperatures and pressure.
Signal
DC Volts
Use the voltage column to check the Suction Pressure Transducer while
connected to the WSHP-X Module. Read voltage with a meter set on
DC volts. If the temperature/voltage or pressure/voltage readings do
not align closely with the chart, your Suction Pressure Transducer is
probably defective and will need to be replaced.
Pressure
PSI
The Evaporator Coil Temperature is calculated by converting the Suction Pressure to Temperature. The Suction Pressure is obtained by using
the OE275-01 Suction Pressure Transducer, which is connected into the
Suction Line of the Compressor.
OE275-01 Suction Pressure Transducer Coil Pressure
– Temperature – Voltage Chart for R410-A Refrigerant
Temperature
°F
OE275-01 Suction Pressure Transducer
Testing for R-22 & R410-A Refrigerant
21.19
80.94
1.8
59.03
168.10
3.2
24.49
87.16
1.9
61.17
174.32
3.3
27.80
93.39
2.0
63.19
180.55
3.4
30.99
99.62
2.1
65.21
186.78
3.5
33.89
105.84
2.2
67.23
193.00
3.6
36.80
112.07
2.3
69.24
199.23
3.7
39.71
118.29
2.4
71.15
205.46
3.8
42.30
124.52
2.5
72.95
211.68
3.9
44.85
130.75
2.6
74.76
217.91
4.0
47.39
136.97
2.7
76.57
224.14
4.1
49.94
143.2
2.8
78.37
230.36
4.2
52.23
149.42
2.9
80.18
236.59
4.3
54.50
155.65
3.0
56.76
161.88
3.1
Table 7: Coil Pressure/Voltage/Temp for OE275-01
Suction Pressure Transducers - R410-A Refrigerant
Table 6: Coil Pressure/Voltage/Temp for OE275-01
Suction Pressure Transducers - R-22 Refrigerant
Technical Guide
29
WSHP-X Module
Troubleshooting
Using LEDs to Verify Operation
The WSHP-X Module is equipped with LEDs that can be used to verify
operation and perform troubleshooting. There are LEDs for communication, operation modes, diagnostic codes, and relays. The Module has
twenty LEDs—one used for power, one used for communications, one
used for operation status, one used for alarms, five used for compressor
relays, four used for Suction Pressure Transducer status, and seven used
for Binary Input status. See Figures 10 & 11 on page 31 for the LED
locations. The LEDs associated with these inputs and outputs allow you
to see what is active without using a voltmeter.
YS102374 REV 0
WATTMASTER CONTROLS
MADE IN USA
Operation Status LEDs
“STATUS” - This is the status blink code LED. It will light up and
first blink the address of the Module. It will then blink out the Mode of
Operation. See Table 8 below for Status Blink Code descriptions. The
blink code descriptions are also located on the Module’s front cover.
See Figure 10 for location.
No. of
Blinks
Status
1
Off Mode
2
Cool Mode
3
Heat Mode
Table 8: STATUS LED Blink Codes

“COMM” - This LED will light up to indicate Communications with
the VCM-X WSHP Series Controller or SA Series Controller. If Communications are established, the COMM LED will blink. You should
not see this LED light up in stand-alone mode, because there would be
no communications with the VCM-X WSHP Series Controller or SA
Series Controller. See Figure 10 for location.
“ALARM” - This is the diagnostic blink code LED. It will light up and
blink out diagnostic codes. See Table 9 below for Diagnostic Blink
Code descriptions. The blink code descriptions are also located on the
Module’s front cover. See Figure 10 for location.
No. of
Blinks
Alarm
1
Low Suction Pressure
2
Compressor Lockout
3
Water Flow Failure
4
Low Leaving Water Temp
Figure 10: Operation Status LED Locations
Table 9: ALARM LED Blink Codes
30
Technical Guide
WSHP-X Module
Troubleshooting
Suction Pressure Transducer LEDs
LED Diagnostics
“PRES 1-4” - There are LEDs for each of the Suction Pressure
Transducers. Since each compressor has a sensor, these LEDs which
are located on the top left of the WSHP-X Module will give a better
indication of which compressor is causing an alarm. See Table 10 for
PRES LED status descriptions. See Figure 11 for locations.
“POWER” LED: When the WSHP-X Module is powered up, the
POWER LED (located above the address switches) should light up and
stay on continuously. If it does not light up, check to be sure that the
power wiring is connected to the board, the connections are tight, and
the VCM-X WSHP Series Controller or SA Series Controller is powered
(if connected). If after making all these checks, the POWER LED does
not light up, the module is probably defective.
No. of
Blinks
Status
Solid On
Sensor is Detected and is OK
Solid Off
Sensor is Not Detected
1
Low Suction Pressure on this Compressor
2
Compressor is Locked Out
Table 10: PRES 1-4 LED Blink Codes
“COMM” LED: When the WSHP-X Module is powered up while in
Stand Alone Mode, the COMM LED does not light up. When the module
is connected to the VCM-X WSHP Series Controller or SA Series Controller, the COMM LED should light up, indicating Communications.
Each time Communications are detected, this LED should continuously
blink on and off for a half second. This LED should never stop checking
for a Communications signal. If it does not light up, check to be sure
that the power wiring is connected to the board, the connections are
tight, and the VCM-X WSHP Series Controller or SA Series Controller
is powered. If after making all these checks, the COMM LED does not
light up, the board is probably defective.
“STATUS” LED: As previously described, when the WSHP Module is
first powered up, the STATUS LED will blink out the Mode of Operation.
“ALARM” LED: As previously described, this LED will blink on and
off to indicate alarms and diagnostics.
NOTE: The WSHP-X Module contains no user-serviceable parts.
Contact qualified technical personnel if your Module is
not operating correctly.
Figure 11: PRES 1-4 LED Locations
Technical Guide
31
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AAON® Manual Part No. V23560
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