Maico WR 600 Quick start guide

WIRING DIAGRAM
WR 600
Version: 2019-05-22 - 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 1
Wiring diagram for WR 600 ventilation with RLS D1 WR room air control (plus
function)
L 1
NN
A b l u f t
T e m p
C O 2
Z u l u f t
S 2
S 3
S 1
A b l u f t
S 1 S 3
S 2
O T
L D 2
O T
S 2
S 1
L D 3
L D 1
B e d i e n t e i l
L 1
N
Z u l u f t
N
L 1L 1
N
L 1 L 1
N
1
23
4
567
8
9
1
0
C O 2
B D E
O n / O f f
T e m p
2 4 V
G Y
P K
W H
B N
B N
B U
G N Y E
B N
G N Y E
B U
W H
B U
A 2
W 2
B N
W H
T y p
0 - 1 0 V ( M 1 ) 0 - 1 0 V ( M 2 )
53
1
G N Y E
B U
B N
N e t z
A b l u f t
Z u l u f t
6
A B L
Z U L
I I
I
I I I
L D 3
L D 2
L D 1
S 1 +
S 2 -
P K
W H
B N
G Y
Y E
G N
S T m i n
B e t r i e b s -
a n z e i g e
J u m p e r
6
k 1
B 1
0 - 1 0 V
G N D
+ 2 4 V
W 1
B N
B U
G N Y E
N E
P
N ' P '
P E
N
L
N P M 1 M 2 A B C
32 1
W Y B N G N B U B N
M O D E
Y E
N P M 1 M 2 A B C
32
1
W Y B N G N
A B L
B U B N
M O D E
Z U L
M 2
W Y Y E
G N
B N
G N
B K
B N B U
M 1
W Y Y E
G N
B N
G N
B K
B N B U
M P 2
M P 1
1 2 3
1 2 3
1 2 3
32 1
Y E
A 1
A
F
W 3 ' ' W 3 W 3 '
W 3 ' W 3 W 3 ' ' W 2
W 3 ' / + 2 4 V
Y E
G N
B N
W H
W H
B N
B
W 2 '

WIRING DIAGRAM
WR 600
Version: 2019-05-22 - 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 2
A - WR 600 / RB 600 ventilation unit
A1 - WR 600 / RB 600 terminal box
A2 - Control circuit board
B1 - RLS 1 WR or RB-ZF4 room air control
W1 -230 VAC connecting cable
W2' - Shielded control cable (to be supplied by customer) for RLS D1 WR / RB-D1-ZF4 room air control. Room air
control B (RLS D1 WR / RB-D1-ZF4) can also be connected instead of room air control B1 (RLS 1 WR / RB-ZF4). Ex-
ternal diameter of the shielded cable 3.2...6.5 mm, e.g. LIYCY 2 x 0.75 mm².
W2 - Control cable (to be supplied by customer) for RLS 1 WR / RB-ZF4 room air control. External diameter of the
control cable 3.2...6.5 mm, e.g. LIYY 6 x 0.34 mm²
F - Mains filter
MP1 - Motor board 1 for supply air fan
MP2 - Motor board 2 for exhaust air fan
M1 - Supply air fan
M2 - Exhaust air fan
S - Door contact switch/activated via front plate
T-min - Frost protection temperature sensor
S1 [blue] - setting potentiometer for supply air volumetric flow, ventilation level 1
S2 [blue] - setting potentiometer for supply air volumetric flow, ventilation level 2
S3 [blue] - setting potentiometer for supply air volumetric flow, ventilation level 3
S1 [red] - setting potentiometer for exhaust air volumetric flow, ventilation level 1
S2 [red] - setting potentiometer for exhaust air volumetric flow, ventilation level 2
S3 [red] - setting potentiometer for exhaust air volumetric flow, ventilation level 3
Jumper settings
J 1-3 - Unit type, 011 = WR 600 / RB 600
J 4-5 - Frost protection temperature
J 6 - No function
J 7 - Time limitation (60 minutes) LS3 is activated
J 8 - RLS 1 WR/RB-ZF4 or RLS D1 WR/RB-D1-ZF4 room air control is selected
J 9 - Humidity protection is blocked at switch position OFF. Room air control: switch setting OFF (standby) is released
J 10 - 0 - 10 V input for CO2 sensor blocked
Further connection options
W3 - Connecting cable (provided by customer) for external operating display.
k1- Potential-free relay contact k1 (max. 3 A / 250 VAC, 2 A / 30 VDC). Contact k1 is closed when the ventilation unit
is running.
W3' - Connecting cable (to be supplied by customer) for external CO2/VOC sensor or external hygrostat. Hygrostat
with potential-free contact.
W3" -Connecting cable (provided by customer) for external differential pressure controller. Differential pressure con-
troller with potential-free relay contact. Minimum switching capacity of relay contact: 230 VAC / 2A. Remove J1 bridge
on A2 control circuit board.

WIRING DIAGRAM
WR 600
Version: 2019-05-22 - 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 3
WR 600 ventilation unit with RLS 1 WR room air control and COsensor
Connection of a CO2 sensor for the demand-driven supply of fresh air. The ventilation unit only reacts to the
CO2sensor if ventilation level 2 (nominal ventilation) is selected at the room air control.
A1 - electrical terminal box WR 600
A2 - control circuit board: Jumper 10 (CO2) set
B1 - room air control RLS 1 WR
CO2 - CO2sensor SKD
W1 - 230 V AC connecting cable
W2 control cable for room air control
W3' - connecting cable for external CO2sensor (to be supplied by the customer). Connection to control circuit board
A2 at terminals “CO2” and “OT”. Set jumper 10 (CO2) to release the feature, see figure.
Switching points for CO 2sensor
< 900 ppm, ventilation unit switches to ventilation level 1. Ventilation level 2 is shown at the room air control.
> 1,000 ppm, ventilation unit switches from ventilation level 1 to ventilation level 2.
> 1,100 ppm, ventilation unit switches to ventilation level 3. Ventilation level 2 is shown at the room air control.
< 1,000 ppm, ventilation unit switches from ventilation level 3 to ventilation level 2.

WIRING DIAGRAM
WR 600
Version: 2019-05-22 - 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 4
WR 600 ventilation unit with RLS 1 WR room air control and differential pressure
controller
Parallel operation of fireplace and ventilation unit
The differential pressure controller P is a safety device, which allows a ventilation system to be operated at the same
time as an air-ventilated fireplace.
The differential pressure controller, e.g. Wodtke DS 01, prevents a ventilation unit that is connected to this safety de-
vice being operated, if there is negative pressure in the living room.
The potential-free relay contact (n/c) in the differential pressure controller switches the fans in the ventilation unit off, if
required. Relay contact k is connected in series to the fans' supply voltage for this purpose.
This blocks the room air control RLS 1 WR. The LED display goes out. The unit is only released again when the differ-
ential pressure controller switches the fans back on. The ventilation unit runs at the same ventilation level as before it
was blocked.
When selecting the differential pressure controller, note the technical data of the switching output (potential-free relay
contact k). Minimum switching capacity: 230 V AC, 2A
The connection between the differential pressure controller and ventilation unit is made with W3" connecting cable.
The potential-free relay contact k of the differential pressure controller P is connected to control circuit board A2 at ter-
minals "N" and " ".
Before this, the jumpers on the terminals "N" and " " on the control circuit board A2 must be removed.
A1 - electrical terminal box WR 600
A2 - control circuit board
B1 - room air control RLS 1 WR
P - differential pressure controller with potential-free relay contact k (provided by customer)
k - switching output, potential-free relay contact
W3" - connecting cable for differential pressure controller (provided by customer)
ABL - exhaust air
ZUL - supply air

WIRING DIAGRAM
WR 600
Version: 2019-05-22 - 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 5
WR 600 ventilation unit with up to 5 RLS 1 WR room air controls
Up to 5 RLS 1 WR room air controls can be connected to the ventilation unit. No CO2 sensor should be connected if
several room air controls are connected.
A1 - electrical terminal box WR 600
A2 - control circuit board: Jumper setting = Factory setting
B1 - 1 RLS 1 WR room air control
B2 - 2. RLS 1 WR room air control
W1 - 230 V AC connecting cable
W2 - control cable for room air control
V - distributor (supplied by the customer)
The ventilation unit is factory-set for the connection of the RLS 1 WR room air control. Jumper 8 is set on the control
circuit board A2.

WIRING DIAGRAM
WR 600
Version: 2019-05-22 - 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 6
WR 600 ventilation unit with RSL 2 F room air control and HY 5 hygrostat
Connection of a hygrostat for demand-driven humidity extraction. This must have a potential-free switching output,
e.g. Maico Hygrostat HY 5.
The hygrostat always switches the ventilation unit to ventilation level 3 if the defined humidity value is exceeded. If the
humidity in the room drops, the ventilation unit switches back to the previously selected ventilation level.
If you switch manually or using the timer from ventilation level 3 to level 2 or 1, this deactivates the automatic function
of the hygrostat temporarily. This is then switched back to active if the level drops below the hygrostat set point once.
A1 - electrical terminal box WR 600
A2 - control circuit board: Jumper 10 (CO2) not set / Jumper 8 not set
B1 - room air control RLS 2 F
r.F. (relative humidity) r.F. (relative humidity) - Hygrostat HY 5, see accessories
W1 - 230 V AC connecting cable
W2 - control cable for room air control
W3' - connecting cable for an external hygrostat (to be supplied by the customer). Connection to control circuit board
A2 at “CO2” terminal, see figure.
Set the switching point at the hygrostat manually.
Never connect a hygrostat and a CO2 sensor at the same time.

WIRING DIAGRAM
WR 600
Version: 2019-05-22 - 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 7
Wiring diagram for WR 600 ventilation with RLS 1 WR room air control

WIRING DIAGRAM
WR 600
Version: 2019-05-22 - 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 8
A - WR 600 ventilation unit
A1 - electrical terminal box
A2 - control circuit board
B/B1 - room air control
W1 - 230 V AC connecting cable
W2 - control cable for room air control
F - mains filter
MP1 - motor board 1 for supply air fan
MP2 - motor board 2 for exhaust air fan
M1 - supply air fan
M2 - exhaust fan
S - door contact switch: activated by front plate
Tmin - Frost protection temperature sensor
Supply air
S1 (blue) - Potentiometer adjuster, ventilation level 1
S2 (blue) - Potentiometer adjuster, ventilation level 2
S3 (blue) - Potentiometer adjuster, ventilation level 3
Exhaust air
S1 (red) - Potentiometer adjuster, ventilation level 1
S2 (red) - Potentiometer adjuster, ventilation level 2
S3 (red) - Potentiometer adjuster, ventilation level 3
Jumper settings
J 1-3 Potentiometer volumetric flow range
J 4-5 Frost protection temperature
J 6 No function
J 7 Ventilation level 3 is reset after an hour
J 8 Room air control (RLS 1 WR factory setting)
J 9 Switching off the ventilation unit possible (on/off active)
J 10 Hygrostat connection released
Further connection options
W3/W3' - Connection cable (supplied by customer) for hygrostat, CO2 sensor, external operating display, thermostat
or differential pressure controller.
k1 - Potential-free relay contact (max. 3A / 250 VAC, 2A / 30 VDC). The contact is closed when the ventilation unit is
running.
ABL - exhaust air
ZUL - supply air
N - mains
BA - operating display
BT - operator unit

WIRING DIAGRAM
WR 600
Version: 2019-05-22 - 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
Wiring diagram for WR 600 ventilation with RLS 2 F room air control

WIRING DIAGRAM
WR 600
Version: 2019-05-22 - 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 10
A - WR 600 ventilation unit
A1 - electrical terminal box
A2 - control circuit board
B/B1 - room air control
W1 - 230 V AC connecting cable
W2 - control cable for room air control
F - mains filter
MP1 - motor board 1 for supply air fan
MP2 - motor board 2 for exhaust air fan
M1 - supply air fan
M2 - exhaust fan
S - door contact switch: activated by front plate
Tmin - Frost protection temperature sensor
Supply air
S1 (blue) - Potentiometer adjuster, ventilation level 1
S2 (blue) - Potentiometer adjuster, ventilation level 2
S3 (blue) - Potentiometer adjuster, ventilation level 3
Exhaust air
S1 (red) - Potentiometer adjuster, ventilation level 1
S2 (red) - Potentiometer adjuster, ventilation level 2
S3 (red) - Potentiometer adjuster, ventilation level 3
Jumper settings
J 1-3 Potentiometer volumetric flow range
J 4-5 Frost protection temperature
J 6 No function
J 7 Ventilation level 3 is reset after an hour
J 8 Room air control (RLS 1 WR factory setting)
J 9 Switching off the ventilation unit possible (on/off active)
J 10 Hygrostat connection released
Further connection options
W3/W3' - Connection cable (supplied by customer) for hygrostat, CO2 sensor, external operating display, thermostat
or differential pressure controller.
k1 - Potential-free relay contact (max. 3A / 250 VAC, 2A / 30 VDC). The contact is closed when the ventilation unit is
running.
ABL - exhaust air
ZUL - supply air
N - mains
BA - operating display
BT - operator unit

WIRING DIAGRAM
WR 600
Version: 2019-05-22 - 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 11
WR 600 ventilation unit with RSL 1 WR room air control and HY 5 hygrostat
Connection of a hygrostat for demand-driven humidity extraction. This must have a potential-free switching output,
e.g. Maico Hygrostat HY 5.
The hygrostat always switches the ventilation unit to ventilation level 3 if the defined humidity value is exceeded. If the
humidity in the room drops, the ventilation unit switches back to the previously selected ventilation level.
If you switch manually from ventilation level 3 to level 2 or 1, this deactivates the automatic function of the hygrostat
temporarily. This is then switched back to active if the level drops below the hygrostat set point once.
A1 - electrical terminal box WR 600
A2 - control circuit board: Jumper 10 (CO2) open
B1 - room air control RLS 1 WR
r.F. (relative humidity) r.F. (relative humidity) - Hygrostat HY 5, see accessories
W1 - 230 V AC connecting cable
W2 - control cable for room air control
W3' - connecting cable for an external hygrostat (to be supplied by the customer). Connection to control circuit board
A2 at “CO2” terminal, see figure.
Set the switching point at the hygrostat manually.
Never connect a hygrostat and a CO2 sensor at the same time.

WIRING DIAGRAM
WR 600
Version: 2019-05-22 - 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 12
WR 600 ventilation unit with RSL 1 WR or RLS 2 F room air control and electric air
heater
If the heat recovery unit is installed in a passive-energy house, a heat register in the outside air is necessary, in order
to guarantee a permanent air exchange.
It preheats cold outside air and keeps the heat exchanger free of frost. The switch-on temperature of the TH 10 should
be set to -3#.
If the outside air temperature gets too cold, the external frost protection heating of the DRH 25-6 switches on and
guarantees an uninterrupted ventilation operation.
The switch-off difference should be set to 5 K. Optionally, the switch-on temperature can be adjusted manually using
the setting wheel at the TH 10.
The air flow controller sensor "S1" must be installed in the direction of flow, at least 30 cm ahead of the electrical air
heater. The TH 10 temperature sensor "R1" must be installed in the air flow direction, at least 50 cm after the electri-
cal air heater.
LW 9 - air flow monitor
S1 - air flow monitor sensor before the DRH..
JP1 - plug jumper on operating mode “H”. Relay switches on as the temperature drops.
TH 10 - thermostat
R1 - temperature sensor after DRH..
US 16 T- universal contactor
DRH 25-6 - electrical air heaters
S - sensor
We recommend the filter box TFE 25-4 (with G4 filter) to protect the electrical heat register against dirt. If a filter box is
used, the G4 filter in the outside air channel can be removed from the heat recovery unit.
A ground collector and brine-air heat exchanger can be used to keep the heat exchanger free of frost.
For external heat register, filter box, outside air and outgoing air channel: These must be diffusion-resistant insulated
to protect against condensation.