Installation instructions srmv, 3 installation, Wire module to controller – TREND SRMV User Manual
Page 3: Ensure hvac equipment power supply is switched off, Connect relay to hvac equipment

SRMV Installation Instructions 91-2853 Issue 3/C 22/11/06
3
Installation Instructions
SRMV
O
I
3 INSTALLATION
(Continued)
Wire module to controller
7
Ensure HVAC Equipment Power Supply is Switched off
8
SRMV
HVAC
Equipment
Power Supply
Power
WARNING:
The wires may be connected to
hazardous voltages. Disconnect
power before attempting any
wiring.
Relay Output Arc
Suppression Installation
Instructions TG200208
IQ
SRMV
SIG
0 V
A2
A1
Relay
coil
polarity independent
I
= 17.5 mA
A2
coil
A1
NO
14
N
C
12
11
C
O
Connect Relay to HVAC Equipment
9
use either normally open or
normally closed contact
14
C
SRMV
NO
NC
12
A2
coil
A1
NO
14
N
C
12
11
C
O
For SRMV/USA the UL rating applies to loads
of up to 30 V.
Terminal size 2 x 2.5 mm
2
(11 AWG) wires -
Cu only
Arc suppression
recommended
Terminal size 2 x 2.5 mm
2
(11 AWG) wires - Cu only
250 Vac @ 8A (resistive), 5A (inductive,
cos ø>=0.4)
20 Vdc @ 8A (resistive)
24 Vdc @ 2A (inductive, T<=30 ms)
11
Power
Supply
HVAC
Equipment