Panasonic Aquarea WH-SDC16H6E5 - Components

52 Aquarea air-to-water heat pumps - Planning and installation manual - 02/2022
Product Description
4
ATTENTION
Danger of water pipes freezing in ambient temperatures below 0 °C
When the heating circuit is lled with water and the outside temperature falls below 0 °C, the water
pipes of the mono-bloc system are at risk of freezing up. This can damage the mono-bloc unit.
The client should therefore ensure the absence of frost by taking one of the following measures:
► Operate the heating circuit using a food-safe antifreeze mixture (propylene glycol).
► Equip the mono-bloc unit with an optional base pan heater, to prevent the heating circuit
from freezing up.
► Drain the heating circuit by using a eld-supplied draining device (manually or
automatically) before freezing starts.
4.6.3.1 Components
Mono-bloc unit | High Performance | J generation | 5 to 9 kW
WH-MDC**J3E5
D
B E F
C
A
2
1
4 5 6
7
9
8
16 17
18
19
20
14
15
10
11
12
13
3
A Exterior view
1 Top panel
2 Valve covers
3 Front panel
B Top view (with opened top panel)
4 Expansion vessel (6 litres)
 5 Waterowsensor
6 Backup heater
C Detailed view of overload protectors
7 Overload protector (x 2)
D Front view (with opened front panel)
8 Optional PCB
9 Main PCB
10 RCCB (for power supply)
11 RCCB (for backup heater)
12 Heat exchanger
13 Water circulation pump
E Side view
F Rear view
14 Magneticwaterlterset*(strainerwith2stopvalves)
15 Water pressure gauge (only visible without cover)
16 Pressure relief valve (only visible without cover)
17 Air purge valve (only visible without cover)
18 Supply water outlet (to space heating)
19 Return water inlet (from space heating)
20 Cable gland (x 3)