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Unit Low Voltage Terminal Connection Chart – MV Series Controller
Terminal
1
Compressor on Output Signal from Jade to MV
2
24VAC HOT from Terminal 2 Connected to Unit Transformer to MV
3
24VAC COMMON from Unit Transformer to MV
Unit Compressor Operation, Unit Receives Signal from MV for Compressor/
4
Condenser Fan On
5
Close Damper Input (Close Blade 100%), Unit Receives Signal from MV
6
Electric Heat On Operation, Stage 1 and 2, Unit Receives Signal from MV
7
1st Stage Cooling Input, 1st Stage Cooling Signal to Jade from MV
8
2nd Stage Cooling Input, 2nd Stage Cooling Signal to Jade from MV
9
Blower Operation (Indoor Blower On), Unit Receives Signal from MV
10
Filter Switch Normally Closed Dry Contacts, MV Signals Dirty Filter Alarm
11
Filter Switch Normally Closed Dry Contacts, MV Signals Dirty Filter Alarm
Blade Switch Delay Relay Normally Closed Dry Contacts, MV Signals Blade
12
Switch Fail Alarm*
Blade Switch Delay Relay Normally Closed Dry Contacts, MV Signals Blade
13
Switch Fail Alarm*
Occupied Signal Input, Econ Emergency Open (Open Blade 100%), Unit
14
Receives Signal from MV
Econ Open Output (6V HOT, 24V HOT after Blade Open 100% and Delay), Sends
15
Signal to MV
Alarm Relay Common Dry Contact, MV Signals Compressor Fail Alarm
16
Alarm Relay Normally Open Dry Contact, MV Signals Compressor Fail Alarm
17
18
Alarm Relay Normally Closed Dry Contact
24VAC HOT to Terminal 2 from Unit Transformer Through Smoke Alarm Jumper
19
Wire**
20
2nd Stage Heating On Operated Through Jumper to Terminal 6
Blade Switch Terminal 24V HOT When Blade is Open, Sends Signal from Switch
21
to Delay Relay
*
Blade switch delay relay fail alarm set to 500 second delay from factory.
** Replace jumper wire with smoke alarm connections to interrupt 24VAC unit power if smoke alarm is used in shelter. Jumper can also
be removed to break 24VAC power to unit.
TABLE 11
Description
MV Terminal Connection
"A" on Relay Board
"R" on Relay Board
"C" on Relay Board
"Y" on Relay Board
"F" on Relay Board
"W" on Relay Board
"Y1" on Relay Board
"Y2" on Relay Board
"G" on Relay Board
"4" on Relay Board
"5" on Relay Board
"8" on Relay Board
"9" on Relay Board
"ECONE" on Alarm Board
"DAMPER" on Comm Board
"LOCKOUT 3" on Alarm
Board
"LOCKOUT 2" on Alarm
Board
Not Used on MV
Building Smoke Alarm
(optional)
Not Used on MV
Not Used on MV
Manual
Page
Series "2"
Reference
"A"
"R"
"C"
"Y"
"F"
"W1"
"Y1"
"Y2"
"G"
"4"
"5"
"8"
"9"
"E"
"10"
"3"
"2"
"1"
"RT"
"W2'
"7"
2100-647
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