WIRING DIAGRAM
WS 170 KR
Version: 2019-08-30 - MAICO VENTILATOREN, www.maico-fans.com - We are not responsible for mistakes or printing errors and retain the
right to make technical modifications without giving prior notice
Page 9
WS 170 ventilation unit with NTC 15 supply air temperature sensor and RLS 1 WR
or RLS D1 WR room air control
B
W 2
W 2 '
I I
I
I I I
B 1
W 6
W 1
G
N
Y
E
B
U
B
N
T 1
A
K L 5
K L 6
K L 1
K L 2
K L 3
K L 4
G W 1
J 2
K L 5
K L 6
K L 1
K L 2
K L 3
K L 4
G W 2
8
9
10
C O 2
B D E
O N / O F F
6
7
J u m p e r
1
A 2
P E
N
L
A - WS 170 electronic slide-in module
A2 - Control circuit board: Jumper 8 bridged (= factory setting)
B - RLS D1 WR room air control
B1 - RLS 1 WR room air control
GW1 - Gateway frost protection heat register
GW2 - Gateway bypass shutter (only WS 170 bypass unit)
T1 - Supply air temperature sensor in
supply air channel (provided by customer)
W1 - 230 V AC connection cable
W2, W2´ - Control cable for room air control
W6 - Connection cable of supply air temperature sensor. Connection on GW1 circuit board to KL2 terminals.
For WS 170 in passive-energy houses, an NTC 15 must also be installed to protect against icing over (if the supply air
is too cold). The ventilation unit then switches off at supply air temperatures of less than 6 °C.
Only in Comfort and Bypass units when deploying a supply air temperature sensor: Remove the resistor on GW1 cir-
cuit board at the KL2 terminals.