Winterwarm XR+ Series, Installation Manual

Page: 11 / 28

11 INSTRUCTION MANUAL AIR HEATER TYPE XR+
1. Connect the two wires of the thermostat to termi-
nals 4 and 5 of the first air heater.
2. Connect the first air heater to the second air heater.
3. Repeat for each subsequent air heater.
PE L 5 4 N 5 4 5 4 5 4
22°C
L N
PE L N
L N
PE L N
L N
PE
L
N
L N
1
2 3 ...8
22°C
L Ne
ut
al
4 5
L Ne
ut
al
4 5
L Ne
ut
al
4 5
1 2 3 4 5 6 7 8
ON
1 0
1 2 3 4 5 6 7 8
ON
1 0
S1 J14
1 2 3 4 5 6 7 8
ON
1 0
1
2
3
Figure 10 - Connection of multiple air heaters to a
modulating room thermostat
Each air heater needs an unique number to be recognised
by the room thermostat. This number can be set with the
J14 switch on the control unit of each air heater:
1. Set the S1 and J14 switches on the control unit as
follows (figure 11):
a. Set the S1 switch of the first air heater to 1.
b. Set the S1 switch of the other air heaters to 2.
c. Set the J14 switch of the first air heater to 1.
d. Set the J14 switch of the second air heater to
2, etc.
1 2 3 4 5 6 7 8
ON
1 0
1 2 3 4 5 6 7 8
ON
1 0
S1
J14
1 2 3 4 5 6 7 8
ON
1 0
Figure 11 - Positions of the S1 and J14 switches for the
first three air heaters in a system
NOTICE If the J14 switch of more than one air heater is
set to the same number, the system will not work.
NOTICE The air heater must be switched off when setting
the switches. Otherwise the settings will have no effect.
4.4.4 ON/OFF thermostat installation
To connect the air heater to an ON/OFF room thermostat,
do the following:
• Connect the two thermostat wires to terminal 6 and
7 (see figure 12 or the electrical wiring diagram in
§11). This is a 24 V connection for the thermostat
signal.
Figure 12 - ON/OFF thermostat connection
NOTICE Never combine these connections with the
terminals 6 and 7 of other air heaters.
NOTICE Always use separate relays for each air heater.
NOTICE Do not connect an external power source to
these terminals. These terminals need a dry contact.