2
1
1
Diamond-shaped holes
blocked with sponge
Figure 5-19 Removing the electric control box and blocking the
diamond-shaped holes
5) Anti-freezing
The water in the unit may freeze when the unit is left unused in winter.
Drain the water system when appropriate if it is not used over a long period. Or you can simply add some antifreeze in water.
Mixing water with glycol will affect the unit performance.
●
Please pay attention to the safety instructions attached to the glycol container.
●
5.5 Electrical Connection
Make sure that the power supply falls with 220-240V~1ph 50Hz/60Hz and is able to provide enough wattage for the
●
unit. The power supply system must comply with the current national safety regulations.
The electrical connection must be completed by qualified professionals and must comply with local laws and
●
regulations. The company is not responsible for personal or property damage resulting from any incorrect electrical
connections.
Provide dedicated and suitable leakage protection device for the unit, with a minimum distance of 3 mm among the
●
wiring contacts. The unit must be grounded reliably.
Make sure that the power cord has a large-enough cross section to withstand the maximum current required. Never
●
use a damaged cable.
Perform electrical connections according to the wiring nameplate (Figure 5-20) of the unit.
●
Secure the cable using clamps in the electric control box to ensure the safety of the power supply cable and the
●
connection cable.
Do not pull, step on or squeeze the cable. Do not use nails or staples to secure the power cord.
●
You need to pass the cable through the knockout hole at the foundation.
●
For this stationary appliance it is required to have for disconnection of mains supply and all-pole switch with a
●
contact opening of at least 3mm in the fixed wiring.
1
2
2
2
Temperature
sensor plug
Figure 5-18
NOTE
NOTE
13
Heat
1
exchanger
1
1
1
Drain pan
Electric
control
box
1
1