Electrical - Low Voltage Wiring - Nibe ClimateMaster Trilogy VE Series Installation, Operation & Maintenance Instructions Manual

Accessory Connections
The EXM controller includes accessory relays. Each relay
includes a normally open (NO) and a normally closed (NC)
contact. Accessory relays may be configured to operate as
shown in Table 8.
Figure 20: EXM Layout and Connections
Electric Heat
Connection
Thermostat
and WXM
Connection
Test Button To Speed Up
Time Delays
Table 8: Accessory Relay Configuration
S1 DIP Accessory
Switch Relay
S1-1 N/A Modbus Master
S1-2 N/A Diagnostics Master
S1-3 ACC1 (K3) Tracks Compressor
S1-4 ACC2 (K4) Tracks Compressor
S1-5 K7 Tracks Compressor
Trilogy
Accessory Relay
Connections
Acc1 Acc2
K7 Relay
Relay Relay
Fault and
Status LEDs
S-1 Dipswitches
On Off
Modbus Slave
Diagnostics Slave
Tracks Blower
Tracks Blower
Tracks Blower
c l i m a t e m a s t e r . c o m
Variable ( VE ) Series IOM - 60Hz HFC-410A
®

Electrical - Low Voltage Wiring

R e v i s i o n D a t e : 2 F e b r u a r y , 2 0 2 2
Jumpers Positioned
for ACC1 and ACC2
to be Dry Contacts
Jumpers Positioned
for ACC1 and ACC2 to
output 24 VAC
27