Maintenance; Descaling; Draining - Rotex RKHTS200A Manuel D'installation

11 Commissioning
The domestic hot water tank coil must be filled with
water at the indoor unit water inlet. This to avoid that
dirt enters the system.
Follow the next steps to fill up the domestic hot water tank:
1 Open each hot water tap in turn to expel air from the system
pipe work.
2 Open the cold water supply valve. Make sure the decoration
panels of both the domestic hot water tank and the indoor
unit are aligned.
3 Close all water taps after all air is expelled.
4 Check for leaks.
5 Manually operate the pressure relief valve to ensure free
water flow through the discharge pipe (turn knob left). Refer
to "Main components" on page 2 for location of the pressure
relief valve.
12 Reattach the front
decoration panel of the
domestic hot water
tank.
13 Reattach the front
decoration panel of the
indoor unit.
Installing the hot water tank by the side of the indoor
unit
Refer to the manual delivered with the kit EKFMAHTA.
RKHTS200+260A
Domestic hot water tank for air to water heat pump system
4PW56004-1
2x
2x
M
AINTENANCE
In order to ensure optimal availability of the unit, a number of checks
and inspections on the unit and the field wiring have to be carried out
at regular intervals.
Each inspection has to be carried out by a licensed
technician and not by the user.
Before carrying out any maintenance or repair activity,
always switch off the circuit breaker on the supply
panel, remove the fuses or open the protection
devices of the unit.
Make sure that before starting any maintenance or
repair activity, also the power supply to the outdoor
unit is switched off.
The described checks must be executed at least once a year by
qualified personnel.
1 Domestic hot water tank pressure relief valve (field supply)
Check for correct operation of the pressure relief valve on the
domestic hot water tank.
2 Remove the front panel to check for water leaks (first remove the
front panel of the indoor unit).

Descaling

Depending on the water quality and set temperature, scale
candeposit on the heat exchanger inside the domestic hot water tank
and can restrict heat transfer. For this reason, descaling of the heat
exchanger may be required at certain intervals.
When using means for descaling, it must be ensured that
the water quality remains compliant with the requirements
of EU directive 98/83/EC.

Draining

Follow the next steps to drain the domestic hot water tank:
1 Switch off the power supply.
2 Turn off the cold water supply valve.
3 Open the hot water taps.
4 Open the drain valve.
Installation manual
6