Orion System One Condenser Head Pressure Module - Manual (Page 6)

One Condenser Head Pressure Module
Technical Guide 6
Installation & Wiring
VCM-X Modular or VCM-X WSHP
to One Condenser Head Pressure
Module Wiring
The One Condenser Head Pressure Module connects to the E-BUS
Distribution Module using a modular HSSC cable. The One Condenser
Head Pressure Module requires a 24 VAC power connection with an
appropriate VA rating.
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 3 below for
wiring. Up to (2) One Condenser Head Pressure Modules can be used
per E-BUS Controller.
Any E-BUS Module can be connected to each of the four E-BUS Dis-
tribution Module’s output ports or can be daisy-chained together using
HSSC cables.
Figure 3: VCM-X WSHP Controller to One Condenser Head Pressure Module Wiring Diagram
Connect To
E-BUS
Distribution
Module
Line Voltage
24 VAC
GND
Line Voltage
All Comm Loop Wiring Is
Straight Thru
24VAC
GND
Local Loop
RS-485
9600 Baud
See Individual Component
Wiring Diagrams For
Detailed Wiring Of Analog
Inputs And Outputs
For Stand Alone Applications,
Connect To System Manager.
For Network Applications
Connect To Next Controller
And/Or MiniLink PD On Local Loop.
G - Fan ON/OFF Only
R - 24VAC
Relay Output Contacts
R2 Thru 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 HP1C Module,
All Compressors Will Be Wired From the
Protection 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.
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
OE271
Static Pressure
Transducer
Splice If Required
Connect To E-BUS Distribution Module or
Expansion Module(s)
(When Used)
Connect To Digital Room Sensor And/Or
Digital CO Sensor
2
Warning:
24 VAC Must Be Connected So That All Ground
Wires Remain Common. Failure To Do So Will
Result In Damage To The Controllers.
T to T, R to R & SHLD to SHLD
Size Transformer For
Correct Total Load.
VCM-X Controller = 8 VA
Note:
All Relay Outputs Are Normally
Open And Rated For 24 VAC Power
Only. 1 Amp Maximum Load.
AI1
AI1 SET
AI2 SET
AI3 SET
AI4 SET
AI5 SET
AI7 SET
AI2
AI3
AI4
AI5
AI7
AI1 SET
AI2 SET
AI3 SET
AI4 SET
AI5 SET
AI7 SET
Jumpers
OE332-VCMX-WSHP
VCM-X WSHP Controller