Orion Two Condenser Head Pressure Module User Manual
LED BLINK CODES
LED NAME STAT
BLINKS QTY. OF SENSORS INSTALLED
LED NAME
ALARM
NO PROBLEMS 0
NO SENSORS DETECTED 1
HIGH HEAD PRESSURE DETECTED 2
LOW HEAD PRESSURE DETECTED 3
Coil Products
Head Pressure Module
Factory Packaged Controls
Two Condenser
Technical Guide
www.aaon.com
www.orioncontrols.com
Two Condenser Head Pressure Module
Circuit A1
+5V
HEAD
SIG 1
PRESSURE
GND
TRANSDUCER #1
Circuit A2
+5V
HEAD
SIG 2
PRESSURE
GND
TRANSDUCER #2
Circuit B1
+5V
HEAD
SIG 3
PRESSURE
GND
TRANSDUCER #3
Circuit B2
+5V
HEAD
SIG 4
PRESSURE
GND
TRANSDUCER #4
COND. A & B ENABLE
BIN 1
COOL A& B ENABLE
BIN 2
COM
COMMON
WattMaster Label
E-BUS
Connector
#LB102081-B
Rev.: 1H
RELAY CONTACT
2COrion No.:OE370-23-HP
E-BUS
Connector
RATING IS 1 AMP
MAX @ 24 VAC
COND. A ENABLE
COOL AENABLE
COND. B ENABLE
COOL B ENABLE
RELAY COMMON
AAON Coil No.:
30310
COND. A SIGNAL
COND. B SIGNAL
COND. FAN A
COND. FAN A
COND. FAN B
COND. FAN B
GND
AO1
AO2
GND
PWM1PWM1+
PWM2PWM2+
GND
R1
R2
R3
R4
RC
+24 VAC
Table of Contents
OVERVIEW ........................................................................................................................................................ 3
Overview ......................................................................................................................................................................................3
Features .......................................................................................................................................................................................3
INSTALLATION AND WIRING ........................................................................................................................... 4
Environmental Requirements .......................................................................................................................................................4
Mounting.......................................................................................................................................................................................4
Power Supply ...............................................................................................................................................................................4
Important Wiring Considerations ..................................................................................................................................................5
VCM-X / SA Controller to Two Condenser Head Pressure Module Wiring ..................................................................................6
E-BUS Controller to Two Condenser Head Pressure Module Wiring ...........................................................................................8
Stand-Alone Wiring ....................................................................................................................................................................10
Condenser Type Selection .........................................................................................................................................................10
SEQUENCE OF OPERATION ........................................................................................................................... 11
Inputs and Outputs ..................................................................................................................................................................... 11
Stand-Alone Input Commands ..................................................................................................................................................11
Input Commands (VCM-X Connection) ......................................................................................................................................12
Modes of Operation ....................................................................................................................................................................12
TROUBLESHOOTING ...................................................................................................................................... 15
Head Pressure Module Valve/Fan Position Troubleshooting .....................................................................................................15
Troubleshooting for Stand Alone Mode ......................................................................................................................................16
Pressure Transducer T roubleshooting .......................................................................................... ............................................17
Using LEDs to Verify Operation..................................................................................................................................................18
LED Diagnostics .........................................................................................................................................................................19
Other Checks .............................................................................................................................................................................19
APPENDIX FOR VERSION 1.04 AND EARLIER ............................................................................................... 20
VCM-X / SA Connection Wiring ..................................................................................................................................................20
Stand-Alone Wiring ....................................................................................................................................................................21
Condenser Type Selection .........................................................................................................................................................22
Refrigerant Selection ..................................................................................................................................................................23
PART NUMBER CROSS REFERENCE TABLE
PART DESCRIPTION ORION AAON
COIL
VCM-X Two Condenser Head Pressure Module OE370-23-HP2C 30310
VCM-X Modular E-BUS Controller - Coil OE332-23E-VCMX-MOD-C TBA
VCM-X Modular Controller - Coil OE332-23-VCMX-MOD-C 30553
VCM-X WSHP E-BUS Controller - Coil OE332-23E-VCMX-WSHP-C TBA
VCM-X WSHP Controller - Coil OE332-23-VCMX-WSHP-C 30526
E-BUS Distribution Module - Coil OE365-23-EBD-C 30312
www.aaon.com
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
Copyright November 2013 WattMaster Controls, Inc.
®
AAON
is a registered trademark of AAON, Inc., Tulsa, OK.
WattMaster Form : AA-HP2C-C-TGD-01L
Neither WattMaster Controls, Inc. nor AAON
assumes any responsibility for errors or omissions in this document.
This document is subject to change without notice.
®
Two Condenser Head Pressure Module
Module Overview
Overview
NOTE: Software version 1.04 and earlier contain a few
differences from version 1.05 and later. For version
1.04 and earlier details, please see the Appendix.
The version number can be found on the upper right
of your module.
The T wo Condenser Head Pressure Module (OE370-23-HP2C) monitors
four individual head pressure transducers and controls two Condenser
Fans or Water Valves on units with two physically separate condenser
sections. The highest reading of head pressure transducers 1 & 2 controls
Condenser Signal A. The highest reading of head pressure transducers 3
& 4 controls Condenser Signal B. If this is a heat pump unit, the module
is able to detect when the unit is in Heat Pump Heating mode and will
force the condenser signal to 100% until it leaves this mode.
The Two Condenser Head Pressure Module is designed to work standalone by using its OPTIONS dip switch to adjust the Head Pressure
setpoint.
Up to (2) Two Condenser Head Pressure Modules can also be daisychained together and connected to the VCM-X Modular or VCM-X
WSHP Controller using the E-BUS Distribution Module, allowing the
Module(s) to receive setpoints from the Controllers, or the Module(s)
can be daisy-chained together and directly connected to the VCM-X
Modular E-BUS or VCM-X WSHP E-BUS Controller. See chart on
page 2 for part numbers.
The Two Condenser Head Pressure Module also provides a pulse
width modulation (PWM) signal or voltage output signal to control the
condenser fans.
The Two Condenser Head Pressure Module requires a 24 VAC power
connection with an appropriate VA rating.
Features
The Two Condenser Head Pressure Module provides the following:
Can be operated stand alone or up to (2) modules can be
daisy-chained together and connected to a VCM-X
Modular or VCM-X WSHP Controller using the
E-BUS Distribution Module to E-BUS interface
Up to (2) modules can be daisy-chained together and
directly connected to a VCM-X Modular E-BUS
or VCM-X WSHP E-BUS Controller
Monitors up to four individual head pressure transducers
Provides control of Condenser Output Signals based on the
highest reading of head pressure transducers
Capable of monitoring a Reverse Valve Signal
Forces Condenser Fans to 100% while in the Heat Pump
Heating Mode
NOTE: The Two Condenser Head Pressure Module contains
no user-serviceable parts. Contact qualifi ed technical
personnel if your Module is not operating correctly.
1
2
4
8
PWR
ADDRESS
OFF
SW1
+5V
SIG 1
GND
+5V
SIG 2
GND
+5V
SIG 3
GND
+5V
SIG 4
GND
BIN 1
BIN 2
COM
1003
1002
10uF
1003
1002
10uF
C2
1003
1002
10uF
1003
1002
10uF
4
R7
R9
300
4
R13
R14
300
1002
R23
1002
R24
1002
R25
1002
R26
www.aaon.com
Two Condenser Head Pressure Module
Circuit A1
+5V
HEAD
SIG 1
PRESSURE
GND
TRANSDUCER #1
Circuit A2
+5V
HEAD
SIG 2
PRESSURE
GND
TRANSDUCER #2
Circuit B1
+5V
HEAD
SIG 3
PRESSURE
GND
TRANSDUCER #3
Circuit B2
+5V
HEAD
SIG 4
PRESSURE
GND
TRANSDUCER #4
COND. A & B ENABLE
BIN 1
COOL ENABLE
BIN 2
COM
COMMON
WattMaster Label
E-BUS
Connector
#LB102081
Rev.: 1H
Figure 1: Two Condenser Head Pressure Module
COND. A ENABLE
COOL ENABLE
COND. B ENABLE
COOL ENABLE
MAX @ 24 VAC
RATING IS 1 AMP
RELAY CONTACT
RELAY COMMON
2COrion No.:OE370-23-HP
E-BUS
Connector
AAON Coil No.:
COND. A SIGNAL
COND. B SIGNAL
COND. FAN A
COND. FAN A
COND. FAN B
COND. FAN B
LED BLINK CODES
LED NAME STAT
BLINKS QTY. OF SENSORS INSTALLED
LED NAME
NO PROBLEMS 0
NO SENSORS DETECTED 1
HIGH HEAD PRESSURE DETECTED 2
LOW HEAD PRESSURE DETECTED 3
30310
GND
AO1
AO2
GND
PWM1-
PWM1+
PWM2PWM2+
ALARM
GND
R1
R2
R3
R4
RC
R34 R50
1002
1002
1002
1002
R30
R29
+24 VAC
R28
D3
D4
D12
D13
SERIAL #
PWM1-
PWM1+
PWM2-
PWM2+
AO1
AO2
GND
OFF
R1
R2
R3
R4
Rc
SW2
RELAYS
ANALOG
ALARM
STAT
COMM
C20
.01uF
TB3
OPTIONS
R53
R12
R11
R54
4751
4751
4751
4751
Technical Guide
3
Two Condenser Head Pressure Module
Installation & Wiring
Environmental Requirements
The Two Condenser Head Pressure 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).
Mounting
The Two Condenser Head Pressure 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).
0.18 DIA. TYP.
+5V
1003
SIG 1
1002
10uF
GND
+5V
1003
5.64
5.04
2
4
8
PWR
ADDRESS
1
OFF
SW1
SIG 2
GND
+5V
SIG 3
GND
+5V
SIG 4
GND
BIN 1
BIN 2
COM
Two Condenser Head Pressure Module
1002
10uF
C2
+5V
SIG 1
1003
GND
1002
10uF
+5V
SIG 2
GND
1003
+5V
1002
10uF
SIG 3
GND
4
R7
R9
300
+5V
4
R13
R14
SIG 4
300
GND
1002
R23
1002
R24
1002
BIN 1
R25
1002
R26
BIN 2
COM
E-BUS
Connector
Power Supply
The Two Condenser Head Pressure Module requires a 24 VAC power
connection with an appropriate VA rating.
If you will be connecting the T wo Condenser Head Pressure Module to
any of the VCM-X series controllers, one of the most important checks
to make before powering up the system for the fi rst time is to make sure
that the controller is confi gured properly for your application. Refer to
the VCM-X Controller Technical Guide or VCM-X Modular E-BUS
Controller Technical Guide for more information.
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.
5.71
0.29
R12
R53
R54
R11
4751
4751
4751
4751
30310
GND
AO1
AO2
GND
PWM1PWM1+
PWM2PWM2+
ALARM
GND
R1
R2
R3
R4
RC
R34 R50
+24 VAC
1002
1002
1002
1002
R30
R29
R28
D3
D4
D12
D13
SERIAL #
PWM1-
PWM1+
PWM2-
PWM2+
AO1
AO2
GND
OFF
R1
R2
R3
R4
Rc
SW2
RELAYS
ANALOG
ALARM
STAT
COMM
C20
.01uF
TB3
OPTIONS
www.aaon.com
Circuit A1
HEAD
PRESSURE
TRANSDUCER #1
Circuit A2
HEAD
PRESSURE
TRANSDUCER #2
Circuit B1
HEAD
PRESSURE
TRANSDUCER #3
Circuit B2
HEAD
PRESSURE
TRANSDUCER #4
COND. A & B ENABLE
COOL ENABLE
COMMON
WattMaster Label
#LB102081
Rev.: 1H
COND. A ENABLE
COOL ENABLE
COND. B ENABLE
COOL ENABLE
MAX @ 24 VAC
RATING IS 1AMP
RELAY CONTACT
RELAY COMMON
2COrion No.:OE370-23-HP
E-BUS
Connector
AAON Coil No.:
COND. A SIGNAL
COND. B SIGNAL
COND. FAN A
COND. FAN A
COND. FAN B
COND. FAN B
LED BLINK CODES
LED NAME STAT
BLINKS QTY. OF SENSORS INSTALLED
LED NAME
NO PROBLEMS 0
NO SENSORS DETECTED 1
HIGH HEAD PRESSURE DETECTED 2
LOW HEAD PRESSURE DETECTED 3
2.07
0.55
Note: Height is 1.49 inches.
Figure 2: Two Condenser Head Pressure Module Dimensions
4
4.14
Technical Guide
Two Condenser Head Pressure Module
Installation & Wiring
Important Wiring Considerations
Please read carefully and apply the following information when wiring
the Two Condenser Head Pressure Module:
1. To operate the Two Condenser Head Pressure Module, you
must connect power to the 24 VAC input terminal block.
2. Each Pressure Transducer must have its own 18-gauge
shielded twisted pair cable. The Drain Wire must be the “Gnd”
signal for the transducer.
3. When the 2-10 VDC Analog Output is being used to control
the Condenser Fan Speed or Water Valve Percentage, the cable
must be 18-gauge shielded wire, and the Drain Wire must be
the “Gnd” signal.
OE370-23-HP2C-C
Two Condenser Head Pressure Module
Head Pressure Transducers
(One Per Refrigerant Circuit)
0 - 667 PSI
+V
RD
SIG
WH
GND
BK
+V
RD
SIG
WH
GND
BK
+V
RD
SIG
WH
BK
GND
+V
RD
SIG
WH
BK
GND
CONDENSER ON/OFF (Y1 CALL)
COOLING ENABLE (O CALL)
Set ADDRESS Dip Switch 1 to ON
for Water Cooled or to OFF for Air
Cooled. Currently showing OFF for
Set ADDRESS Dip Switch 3 to ON
Air Cooled.
to disable Circuit B alarms when
only one Condenser is Used.
Currently showing OFF.
ADDRESS Dip Switch 4 should
always be set to ON to make
reversing valve "ON to Cool / OFF
to Heat". Currently showing ON.
COM
PWR
ADDRESS
+5V
SIG 1
GND
+5V
SIG 2
Two Condenser Head Pressure Module
GND
+5V
+5V
SIG 1
SIG 3
GND
GND
+5V
SIG 2
+5V
GND
SIG 4
+5V
SIG 3
GND
GND
BIN 1
+5V
SIG 4
BIN 2
GND
COM
BIN 1
BIN 2
COM
E-BUS
Connector
www.aaon.com
Circuit A1
HEAD
PRESSURE
TRANSDUCER #1
Circuit A2
HEAD
PRESSURE
TRANSDUCER #2
Circuit B1
HEAD
PRESSURE
TRANSDUCER #3
Circuit B2
HEAD
PRESSURE
TRANSDUCER #4
COND. A & B ENABLE
COOL ENABLE
COMMON
WattMaster Label
#LB102081
Rev.: 1H
Connector
4. If the Pulse Width Modulation (PWM) Output is being used to
directly control the ECM 142 motor, the wires do not need to
be shielded and can be any 18-gauge wire.
5. 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.
WARNING: Be sure all controllers and modules are
powered down before connecting or
disconnecting HSSC cables.
NOTE:
ALL RELAY OUTPUTS
NORMALLY OPEN AND
ARE
RATED FOR 24 VAC POWER
- 1 AMP MAXIMUM LOAD
ONLY
CONDENSER A ENABLE
CONDENSER B ENABLE
HVAC UNIT CONNECTION
30310
GND
GND
GND
PWM1PWM1+
PWM2PWM2+
ALARM
GND
AO1
AO2
R1
R1
R2
R2
R3
R3
R4
R4
RC
Rc
AO1
AO2
GND
PWM1-
PWM1+
PWM2-
PWM2+
+24 VAC
RELAYS
ANALOG
ALARM
STAT
COMM
R1
R3
COMM
OPTIONS
OPTIONS Dip Switch is
Used for Setting the Head
Pressure Setpoint if Not
Using Default Setpoint.
24 VAC
Line Voltage
COND. A ENABLE
COOL ENABLE
COND. B ENABLE
COOL ENABLE
MAX @ 24 VAC
RATING IS 1AMP
RELAY CONTACT
RELAY COMMON
2COrion No.:OE370-23-HP
E-BUS
AAON Coil No.:
COND. A SIGNAL
COND. B SIGNAL
COND. FAN A
COND. FAN A
COND. FAN B
COND. FAN B
LED BLINK CODES
LED NAME STAT
BLINKS QTY. OF SENSORS INSTALLED
LED NAME
NO PROBLEMS 0
NO SENSORS DETECTED 1
HIGH HEAD PRESSURE DETECTED 2
LOW HEAD PRESSURE DETECTED 3
Condenser
Signal A
+
COM
Condenser
Signal B
+
COM
Condenser Fan A
ECM Motor
+
COM
Condenser Fan B
ECM Motor
+
COM
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.
Figure 3: Two Condenser Head Pressure Module Wiring Diagram
Technical Guide
24 VAC Transformer
3 VA Minimum
Revised 7/26/11
5
Two Condenser Head Pressure Module
VCM-X Controller to Two Condenser Head Pressure Module Wiring
VCM-X Modular or VCM-X WSHP
Controller to Two Condenser Head
Pressure Module Wiring
Up to (2) T wo Condenser Head Pressure Modules can be daisy-chained
together and connected to the E-BUS Distribution Module using a modular HSSC cable. The Two Condenser Head Pressure Module requires a
24 VAC power connection with an appropriate VA rating.
For Stand Alone Applications,
Connect To System Manager.
For Network Applications
Connect To Next Controller
And/Or MiniLink PD On Local Loop.
Local Loop
RS-485
9600 Baud
All Comm Loop Wiring Is
Straight Thru
T to T, R to R & SHLD to SHLD
See Individual Component
Wiring Diagrams For
Detailed Wiring Of Analog
Inputs And Outputs
AI1 SET AI2 SET AI3 SET
AI1
AI2
AI3
AI4
AI5
AI7
OE332-23-VCMX-WSHP
VCM-X WSHP Controller
AI1 SET AI2 SET AI3 SET
AI4 SET AI5 SET AI7 SET
The E-BUS Distribution Module connects to the VCM-X Modular
Controller, VCM-X WSHP Controller, VCM-X Expansion Module,
or 12 Relay Expansion Module using the I
2
C port. See Figure 4 below
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.
Note:
All Relay Outputs Are Normally Open And Rated
For 24 VAC Power Only.
1 Amp Maximum Load.
R - 24VAC
G - Fan ON/OFF Only
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
13 - Emergency Heat
Note: 1.) When Using the HP2C Module,
All Compressors Will Be Wired From the
Protection Module, Not the VCM-X
Controller.
2.) A Total Of 20 Relays AreAvailable By
Adding Relay Expansion Modules. All
Expansion Module Relay Outputs Are UserConfigurable As Listed Above.
24 VAC
GND
Line Voltage
24VAC
Size Transformer For Correct
AI4 SET AI5 SET AI7 SET
Total Load.
VCM-X Controller = 8 VA
Jumpers
Splice If Required
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 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.
Connect To Digital Room Sensor And/Or
Digital CO Sensor
2
Figure 4: VCM-X WSHP Controller to Two Condenser Head Pressure Module Wiring Diagram
6
Technical Guide
Connect To
E-BUS
Distribution
Module
GND
Line Voltage
Two Condenser Head Pressure Module
VCM-X Controller to Two Condenser Head Pressure Module Wiring
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 fi rst module. For more information, refer
to the E-BUS Distribution Module Technical Guide.
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.
Head Pressure Transducers
OE365-23-EBD E-BUS
Distribution Module
YS102308
REV 1
I2CTO COMM
DIST. BOARD
OUTPUT
+COMM
SHLD
-COMM
GND
+VDC
INPUT
+COMM
SHLD
-COMM
GND
24VAC
GND
PWR
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.
485 DRV
Modular Cable
Connect To
VCM-X WSHP or
VCM-X Modular Controller,
0 - 667 PSI
(One Per Refrigerant Circuit)
RD
WH
BK
RD
WH
BK
RD
WH
BK
RD
WH
BK
Set ADDRESS Dip
Switch 1 to ON for
Water Cooled or to
OFF for Air Cooled.
Currently showing
OFF for Air Cooled.
If Using (2)
Modules, Set
ADDRESS Dip
Switch 2 to OFF for
Address 1 or to ON
for Address 2.
to OFF if Using (1)
Module. Currently
Set ADDRESS Dip
Switch 3 to ON to
alarms when only
one Condenser is
reversing valve "ON
showing OFF.
disable Circuit B
Used. Currently
showing OFF.
ADDRESS Dip
Switch 4 should
always be set to
ON to make
to Cool / OFF to
Heat". Currently
showing ON.
Set
WARNING: Be sure all controllers and modules are
powered down before connecting or
disconnecting HSSC cables.
Two Condenser Head Pressure Module
+V
+5V
SIG
SIG 1
GND
GND
+V
+5V
SIG
SIG 2
GND
GND
+V
+5V
SIG
SIG 3
GND
GND
+V
+5V
SIG
SIG 4
GND
GND
BIN 1
BIN 2
COM
ADDRESS
PWR
Connect To E-BUS
Distribution Module
OE370-23-HP2C-C
www.aaon.com
Two Condenser Head Pressure Module
+5V
SIG 1
GND
+5V
SIG 2
GND
+5V
SIG 3
GND
+5V
SIG 4
GND
BIN 1
BIN 2
COM
E-BUS
Connector
HSSC Cable
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.
Circuit A1
HEAD
PRESSURE
TRANSDUCER #1
Circuit A2
HEAD
PRESSURE
TRANSDUCER #2
Circuit B1
HEAD
PRESSURE
TRANSDUCER #3
Circuit B2
HEAD
PRESSURE
TRANSDUCER #4
COND.A & B ENABLE
COOLENABLE
COMMON
WattMaster Label
#LB102081
Rev.: 1H
E-BUS
Connector
2COrion No.:OE370-23-HP
COND.A ENABLE
COOLENABLE
COND. B ENABLE
COOLENABLE
MAX @ 24 VAC
RATINGIS 1 AMP
RELAYCONTACT
RELAYCOMMON
AAON Coil No.:
30310
COND.A SIGNAL
COND. B SIGNAL
GND
COND. FANA
COND. FANA
COND. FAN B
COND. FAN B
LED BLINKCODES
LED NAME STAT
BLINKSQTY. OF SENSORS INSTALLED
LED NAME
NOPROBLEMS 0
NOSENSORS DETECTED 1
HIGHHEAD PRESSURE DETECTED 2
LOWHEAD PRESSURE DETECTED 3
GND
HSSC Cable
PWM1PWM1+
PWM2PWM2+
ALARM
R1
R2
R3
R4
RC
AO1
AO2
GND
GND
+24VAC
24 VAC
R1
R2
R3
R4
Rc
RELAYS
ANALOG
AO1
AO2
GND
PWM1-
PWM1+
PWM2-
PWM2+
OPTIONS
ALARM
STAT
COMM
Line Voltage
24 VAC Transformer
3 VA Minimum
R1
R3
COMM
NOTE:
ALL RELAY OUTPUTS
NORMALLY OPENAND
ARE
RATED FOR 24 VAC POWER
ONLY - 1AMP MAXIMUM LOAD
CONDENSER A ENABLE
CONDENSER B ENABLE
HVAC UNIT CONNECTION
Condenser Fan A
ECM Motor
Condenser Fan B
ECM Motor
OPTIONS Dip Switch Setting Not
Required When Connected To
VCM-X Modular, VCM-X WSHP
or SA Controller
Connect To Other
WattMaster-Approved
E-BUS Expansion Module(s)
Condenser
Signal A
+
COM
Condenser
Signal B
+
COM
+
COM
+
COM
Figure 4, cont.: VCM-X WSHP Controller to Two Condenser Head Pressure Module Wiring Diagram
Technical Guide
7
Two Condenser Head Pressure Module
E-BUS Controller to Two Condenser Head Pressure Module Wiring
VCM-X Modular E-BUS or VCM-X WSHP
E-BUS Controller to Two Condenser
Head Pressure Module Wiring
Up to (2) T wo Condenser Head Pressure Modules can be daisy-chained
together and connected to the E-BUS Controller using a modular HSSC
cable. The Two Condenser Head Pressure Module requires a 24 VAC
power connection with an appropriate VA rating. See Figure 5 below
for wiring.
OE370-23-HP2C-C
www.aaon.com
RATINGIS 1 AMP
#LB102081
Rev.: 1H
RELAYCONTACT
2COrion No.:OE370-23-HP
LED NAME STAT
BLINKSQTY. OF SENSORS INSTALLED
LED NAME
NOPROBLEMS 0
NOSENSORS DETECTED 1
HIGHHEAD PRESSURE DETECTED 2
LOWHEAD PRESSURE DETECTED 3
E-BUS
Connector
Two Condenser Head Pressure Module
Circuit A1
+5V
HEAD
SIG 1
PRESSURE
GND
TRANSDUCER #1
Circuit A2
+5V
HEAD
SIG 2
PRESSURE
GND
TRANSDUCER #2
Circuit B1
+5V
HEAD
SIG 3
PRESSURE
GND
TRANSDUCER #3
Circuit B2
+5V
HEAD
SIG 4
PRESSURE
GND
TRANSDUCER #4
COND. A& B ENABLE
BIN 1
COOL ENABLE
BIN 2
COM
COMMON
WattMaster Label
E-BUS
Connector
COND. AENABLE
COOL ENABLE
COND. B ENABLE
COOL ENABLE
MAX @ 24 VAC
RELAYCOMMON
AAON Coil No.:
COND. ASIGNAL
COND. B SIGNAL
COND. FANA
COND. FANA
COND. FAN B
COND. FAN B
LED BLINKCODES
Head Pressure Transducers
0 - 667 PSI
(One Per Refrigerant Circuit)
RD
WH
BK
RD
WH
BK
RD
WH
BK
RD
WH
BK
Set ADDRESS Dip Switch 1 to ON for
Water Cooled or to OFF for Air Cooled.
Currently showing OFF for Air Cooled.
If Using (2) Modules, Set ADDRESS Dip
Switch 2 to OFF for Address 1 or to ON
for Address 2.
Module. Currently showing OFF.
Set ADDRESS Dip Switch 3 to ON to
disable Circuit B alarms when only one
Condenser is Used. Currently showing
ADDRESS Dip Switch 4 should always
be set to ON to make reversing valve
"ON to Cool / OFF to Heat". Currently
Set to OFF if Using (1)
OFF.
showing ON.
Two Condenser Head Pressure Module
+V
SIG
GND
SIG
GND
SIG
GND
SIG
GND
+5V
SIG 1
GND
+V
+5V
SIG 2
GND
+V
+5V
SIG 3
GND
+V
+5V
SIG 4
GND
BIN 1
BIN 2
COM
ADDRESS
PWR
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 ¼, ½, 1, 2, 3,
4, and 5 Meter lengths and 100 and 150 Foot lengths.
NOTE:
ALL RELAY OUTPUTS
NORMALLY OPEN AND
ARE
RATED FOR 24 VAC POWER
ONLY - 1 AMP MAXIMUM LOAD
CONDENSER A ENABLE
CONDENSER B ENABLE
HVAC UNIT CONNECTION
Condenser
Signal A
+
COM
Condenser
Signal B
+
COM
Condenser Fan A
ECM Motor
+
COM
Condenser Fan B
ECM Motor
+
COM
GND
30310
GND
PWM1PWM1+
PWM2PWM2+
ALARM
GND
R1
R2
R3
R4
RC
AO1
AO2
GND
PWM1-
PWM1+
PWM2-
PWM2+
+24 VAC
24 VAC
R1
R2
R3
R4
Rc
RELAYS
ANALOG
AO1
AO2
GND
OPTIONS
ALARM
STAT
COMM
Line Voltage
24 VAC Transformer
3 VA Minimum
R1
R3
COMM
OPTIONS Dip Switch Setting Not
Required When Connected To
VCM-X E-BUS Controller
or SA E-BUS Controller
Connect To Other
WattMaster-Approved
E-BUS Expansion Module(s)
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
Connect To VCM-X E-BUS Controller
HSSC Cable
Figure 5: VCM-X E-BUS Controller to Two Condenser Head Pressure Module Wiring Diagram
8
Technical Guide
Loading...