Rotex RKHTS200AB, Руководство по установке

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R260AB
Domestic hot water tank for air to water heat pump system
4PW61220-1
Installation manual
7
Descaling
Depending on the water quality and set temperature, scale can
deposit 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.
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.
T
ROUBLESHOOTING
This section provides useful information for diagnosing and
correcting certain troubles which may occur in the unit.
General guidelines
Before starting the troubleshooting procedure, carry out a thorough
visual inspection of the unit and look for obvious defects such as
loose connections or defective wiring.
When a safety device was activated, stop the unit and find out why
the safety device was activated before resetting it. Under no
circumstances safety devices may be bridged or changed to a value
other than the factory setting. If the cause of the problem cannot be
found, call your local dealer.
General symptoms
Symptom 1: No water flow from hot taps
Symptom 2: Water from hot taps is cold
Symptom 3: Intermittent water discharge
Symptom 4: Dirty water and water that gives off odours
D
ISPOSAL REQUIREMENTS
Dismantling of the unit and treatment of parts must be done in
accordance with relevant local and national legislation.
T
ECHNICAL SPECIFICATIONS
Domestic hot water tank specifications
When using means for descaling, it must be ensured that
the water quality remains compliant with the requirements
of EU directive 98/83/EC.
When carrying out an inspection on the supply panel or on
the switch box of the unit, always make sure that the circuit
breaker of the unit is switched off.
P
OSSIBLE CAUSES
C
ORRECTIVE ACTION
The main water supply is off. Check that all shut off valves of the
water circuit are completely open.
P
OSSIBLE CAUSES
C
ORRECTIVE ACTION
The thermal cut-out located in the
indoor unit has operated • Check and find the cause of tripping
and then reset button.
• Check if thermistor is correctly
installed in thermistor socket.
Procedure: remove front panel and
insulation, replace or fix the sensor.
The indoor unit (RKHBRD) is not
operating. Check the indoor unit operation.
Refer to the manual delivered with
the indoor unit.
If any faults are suspected, contact
your local dealer.
P
OSSIBLE CAUSES
C
ORRECTIVE ACTION
Thermal control failure (water will be
hot). Contact your local dealer.
The expansion vessel is broken. Replace the expansion vessel.
P
OSSIBLE CAUSES
C
ORRECTIVE ACTION
Dirty water Flush or clean the domestic hot
water tank after periods of standstill.
It could occur that particles in the
water deposit on the bottom of the
tank. If this deposit layer becomes
thick enough it could enter the hot
water outlet and contaminate the hot
water.
RKHTS200AB RKHTS260AB
Storage capacity
(l)
200 260
Internal heat
exchanger volume
(l)
7.5 7.5
Material Stainless steel Stainless steel
Overall
dimensions
(h x l x w)
(mm)
1335 x 600 x 695 1610 x 600 x 695
Connections Quick coupling/G 3/4" F Quick coupling/G 3/4" F
Weight (empty) 70 78
Mounting On top of RKHBRD
or floor mounted
On top of RKHBRD
or floor mounted
Maximum pressure
domestic hot water
tank
(bar)
10 10
Maximum primary
working pressure
(heating side)
(bar)
3 3
Maximum
temperature
domestic hot water
(°C)
75 75
Maximum
temperature heat
exchanger
(°C)
85 85
1D_IM_4PW61220-1.book Page 7 Monday, April 19, 2010 3:41 PM