Manual 2100-647D
Page
29 of 36
Terminal
Description
MV Terminal Connection
Revision
"2"
Reference
1
Compressor on Output Signal from Jade to MV
"A" on Relay Board
"A"
2
24VAC HOT
from Terminal 2 Connected to Unit Transformer to MV
"R" on Relay Board
"R"
3
24VAC COMMON
from Unit Transformer to MV
"C" on Relay Board
"C"
4
Unit Compressor Operation, Unit Receives Signal from MV for Compressor/
Condenser Fan On
"Y" on Relay Board
"Y"
5
Close Damper Input (Close Blade 100%), Unit Receives Signal from MV
"F" on Relay Board
"F"
6
Electric Heat On Operation, Stage 1 and 2, Unit Receives Signal from MV
"W" on Relay Board
"W1"
7
1st Stage Cooling Input, 1st Stage Cooling Signal to Jade from MV
"Y1" on Relay Board
"Y1"
8
2nd Stage Cooling Input, 2nd Stage Cooling Signal to Jade from MV
"Y2" on Relay Board
"Y2"
9
Blower Operation (Indoor Blower On), Unit Receives Signal from MV
"G" on Relay Board
"G"
10
Filter Switch Normally Closed Dry Contacts, MV Signals Dirty Filter Alarm
"4" on Relay Board
"4"
11
Filter Switch Normally Closed Dry Contacts, MV Signals Dirty Filter Alarm
"5" on Relay Board
"5"
12
Blade Switch Delay Relay Normally Closed Dry Contacts, MV Signals Blade
Switch Fail Alarm*
"8" on Relay Board
"8"
13
Blade Switch Delay Relay Normally Closed Dry Contacts, MV Signals Blade
Switch Fail Alarm*
"9" on Relay Board
"9"
14
Occupied Signal Input, Econ Emergency Open (Open Blade 100%), Unit
Receives Signal from MV
"ECONE" on Alarm Board
"E"
15
Econ Open Output (
6V HOT, 24V HOT
after Blade Open 100% and Delay), Sends
Signal to MV
"DAMPER" on Comm Board
"10"
16
Alarm Relay Common Dry Contact, MV Signals Compressor Fail Alarm
"LOCKOUT 3" on Alarm
Board
"3"
17
Alarm Relay Normally Open Dry Contact, MV Signals Compressor Fail Alarm
"LOCKOUT 2" on Alarm
Board
"2"
18
Alarm Relay Normally Closed Dry Contact
Not Used on MV
"1"
19
24VAC HOT
to Terminal 2 from Unit Transformer Through Smoke Alarm Jumper
Wire**
Building Smoke Alarm
(optional)
"RT"
20
2nd Stage Heating On Operated Through Jumper to Terminal 6
Not Used on MV
"W2'
21
Blade Switch Terminal
24V HOT
When Blade is Open, Sends Signal from Switch
to Delay Relay
Not Used on MV
"7"
TABLE 11
Unit Low Voltage Terminal Connection Chart – MV Series Controller
* 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.
