Altherma EKHWS150A3V3, Руководство по установке, Страница: 8 / 10

Installation manual
6
EKHWS150~3 E300A3Z2
Domestic hot water tank for air to water heat pump system
4PW42336-1
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.
The described checks must be executed at least once a year.
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 Domestic hot water tank booster heater
It is advisable to remove lime buildup on the booster heater to
extend its life span, especially in regions with hard water. To do
so, drain the domestic hot water tank, remove the booster heater
from the domestic hot water tank and immerse in a bucket (or
similar) with lime-removing product for 24 hours.
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.
Before contacting your local dealer, read this chapter carefully, it will
save you time and money.
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
T
ECHNICAL SPECIFICATIONS
Domestic hot water tank specifications
■
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.
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(s) has/have
operated • Check and reset button(s).
• Check if thermistor is correctly
installed in thermistor socket.
The indoor unit (EKHBH/X) is not
operating. Check the indoor unit (EKHBH/X)
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). Switch off power to the indoor unit.
When discharge has stopped, check
the thermal controls and replace if
faulty.
Contact your local dealer.
The expansion vessel is broken. Replace the expansion vessel.
EKHWS150A3V3 EKHWS200A3V3 EKHWS200A3Z2 EKHWS300A3V3 EKHWS300A3Z2
Volume 150 l 200 l 200 l 300 l 300 l
Internal heat exchanger volume 2 l 3 l 3 l 3 l 3 l
Overall dimensions (Ø x H) 580 x 900 mm 580 x 1150 mm 580 x 1150 mm 580 x 1600 mm 580 x 1600 mm
Booster heater, power supply 230 V 50 Hz 1P 230 V 50 Hz 1P 400 V 50 Hz 2P 230 V 50 Hz 1P 400 V 50 Hz 2P
Booster heater, running current 13 A 13 A 7.5 A 13 A 7.5 A
Booster heater, capacity 3 kW 3 kW 3 kW 3 kW 3 kW
Connections 3/4" FBSP
(a)
3/4" FBSP
(a)
3/4" FBSP
(a)
3/4" FBSP
(a)
3/4" FBSP
(a)
Weight (empty) 37 kg 45 kg 45 kg 59 kg 59 kg
Mounting
Wall or floor Floor Floor Floor Floor
(a) FBSP = Female British Standard Pipe