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

Two Condenser Head Pressure Module
Technical Guide 6
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) Two Condenser Head Pressure Modules can be daisy-chained
together and connected to the E-BUS Distribution Module using a modu-
lar HSSC cable. The Two Condenser Head Pressure Module requires a
24 VAC power connection with an appropriate VA rating.
Figure 4: VCM-X WSHP Controller to Two 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 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 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
OE332-23-VCMX-WSHP
VCM-X WSHP Controller
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
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 Dis-
tribution Module’s output ports or can be daisy-chained together using
HSSC cables.