Polario BH30A, Installation And Owner'S Manual, Page: 5 / 17

03
3 PREPARATION
3.1 Preparing installation site
3.1.1 Installation site requirements of the backup heater
Keep in mind the guidelines for the measures:
▪
Mind the following spacing installation guidelines:
(Unit:mm)
3.2 Preparing water piping
3.3 Preparing electrical wiring
>300
>300 >300
>350
>500
Maximum distance between the
backup heater and the external drive
5m
(
If you exceed this
distance, you need an
additional water pump
）
Operating range (Internal installation) 5~35
℃
Item Description Wires
Maximum
running
current
Interconnection cable
1 4/5
Interconnection
cable between
backup heater kit
and outdoor unit
(a)
(a)Minimum cable section: 0.75 mm
2
;
Minimum cable section: 4 mm
2
;
Backup
heater
Power supply Required number
of conductors
0.2A
BH45B/R 380-415V 3~ 50Hz 4Wires
380-415V 3N~ 50Hz 5Wires
BH30A
BH30B
BH45B
220-240V~ 50Hz 3Wires
75
70 105
280 220 170
140
Ø11
30X11
20
780 630
35
The backup heater is designed to be wall mounted in indoor locations only.
Make sure the installation surface is a flat and vertical noncombustible wall.
When installing the backup heater in the system, make sure the required minimum water flow rate is guaranteed at all times.
For more information, refer to the installation manual of the outdoor unit.
3.3.1 Overview of electrical connections for external and internal actuators.
NOTE
More technical specifications of the different connections are indicated on the inside of the backup heater.
BH90B/R