5
IMAX XTRA 2 -
Flue Damper Kit Instructions
INSTRUCTIONS
Gnd
OT
Open
Therm
Gnd
In
Out
LV
External
Interlock
Room
Stat 3
QAA55
CL-
C
Room
Stat 2
QAA55
CL-
C
Room
Stat 1
QAA55
CL-
C
Gnd
0-10
0-10V
Input
Outside
Sensor
DHW
Sensor
Header
Sensor
Fused Spur
L
Mains
In
L
L
Out In
In
Out
Switched
Live 2
Switched
Live 1
L
Boiler Pump
or
System Pump
COM
NO
NO
COM
Volt Free
Fault
Relay
Volt Free
Burner
Relay
In
Out
230V
External
Interlock
Flue
Damper
External System
Controls
N
N
N
N
DHW Pump or
Hea�ng
Circuit 2 Pump
Hea�ng
Circuit 1
Pump
6A
12A 12B
11
10A 10B 10C
9A
9B
9C
9D
6B
5
4A
4B
3
2A
2B
1
PWM
PWM
Pump
M
The schematic below shows the wiring for the Flue Damper.
Turn on the power to the boiler and recommission the boiler to configure the connected motorised flue damper.
Power from main supply
MUST be the same phase
as the boiler supply.
Note:
If you are adding a Motorised Flue Damper to an Imax Xtra 2 that already has a Boiler Pump controlled directly from the
boiler you must observe the following:
•
The On/Off Controlled Boiler Pump MUST be converted to Modulation Controlled Boiler Pump.
•
If the Boiler pump has a PWM Modulation Input available you can use the schematic shown in Figure 3.
•
If the Boiler pump only has a 0-10V Modulation Input available you need to order the 0-10V Pump Kit. The schematic
showing the wiring is shown in the instructions which are provided with the kit.
Fig. 2
Gnd
In
Out
LV
External
Interlock
Boiler
Pump
12A 12B
PWM
PWM
Pump
Fig. 3
