Installation Instructions

9
CONNECTION TO POWER MAINS
Cut power supply o before any operations with the unit. The unit shall be
connected to power mains by a duly qualied electrician only. Rated values of the
electrical parameters are shown on the rating plate. Any modications of the internal
connections are not allowed and will void the warranty.
The unit is designed for connection to single-phase ac 120 V / 60 Hz power mains.
The unit is equipped with a power cable and a plug and can be connected to any standard
grounded outlet. The power cable is connected to the terminal X1 by default.
Connect the unit to power mains through the external automatic switch
integrated into the xed wiring system that breaks the circuit in case of short circuit or overload.
Install the circuit breaker to have a free quick access in case of need to turn the unit o
promptly.
The unit has overload protection provided by the thermal fuse which is activated in case of
overload or short circuit. To replace the thermal fuse, disconnect the unit from power mains, remove the
overload or short circuit. Remove the thermal fuse and check the unit.
Wiring diagram is shown in g. 6.
The thermostat TS1 (g. 6) provides freezing protection of the unit during cold season.
As the thermostat is activated, the supply fan stops and the heat recovery core is warmed up with extract
air stream. To adjust the thermostatic switch, rotate the control dial to required setpoint. The setpoint
depends on the operating conditions. Recommended setting of the thermostat is 37°F (+3ºС), set in the
factory by default.
РЕ
L N
Kon 1
Kon 2
PE M1
PE M2
Brown M1
Cap1
Black M1
Cap1
Black M2
Cap2
Brown M2
Cap2
Blue M1
Term
Term
Blue M2
Х1
Х2
Х3
SW1
1
2
3
Сap1
Сap2
TS1
М1
FANMOTOR
М2
FANMOTOR
t
0
SW2
Low
Standby
Med
1
К1 К2 К3
2
9
10
11
SetupofLow
SetupofMed
termostat
Low
Med
G0
High
~24V
PE
Twowire
control
9
2
10
2
11
3
4
Y/G
Y/G
5
16
17
6
12
18
19
8
7
14
15
13
C
2
~24V
~120V
Х5.1
Х5.2
Х6.1
Х6.2
Red
Red
White
White
TR1
Green
Black
White
120V 60Hz
1
2
3
4
5
6
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Х4
W1
Fig. 6. Unit wiring diagram