OPERATION
WHAT TO DO IF ...
ENGLISH
WWW.STIEBEL-ELTRON-USA.COM ACCELERA 300 | 13
6.1 Descaling
At high temperatures water separates out lime. This
is deposited on the inside of the tank. With increasing
limescale build-up, the amount of hot water inside the
tank is reduced.
» Have a licensed installer descale the booster heater
from time to time. This extends the service life of
the booster heater.
» Scale cannot build up on the heat pump element.
A licensed installer who knows the local water quality
will tell you when the next maintenance appointment
is due.
» Have your licensed installer check the sacrificial
anode regularly.
7. What to do if ...
7.1 ... the water heater does not deliver hot
water
» Check the water heater power supply.
» Check your fuse box for a tripped circuit breaker.
» Make sure there is a 15A double pole circuit breaker
If the circuit breaker has tripped, reset it or replace it.
Notify your local licensed installer if the circuit breaker
trips again.
» Ensure that the air intake and air discharge are
unobstructed.
Excessively high ambient temperature, excessively
high temperature of the air drawn in (>108 °F (42 °C))
or a fault in the refrigerant circuit can result in the
compressor being overloaded. The thermal protective
'auto reset' motor switch or the high limit 'manual reset'
cut-out can both shut off the compressor off.
The high limit pressure limiter must only be
reset by your licensed installer after they have
removed the cause of the relevant fault.
After a short cooling down period, the thermal protective
motor auto reset switch will restart the compressor
automatically.
Notify your local licensed installer if the water heater
does not restart automatically.
7.2 ... the safety valve of the cold water supply
line is dripping
This unit can operate up to 70 psi of inlet pressure.
Expansion water drips from the safety valve during
heat-up. This is completely normal. Notify your local
licensed installer if water still drips after heat-up has
been completed.
7.3 ... the condensate drain drips
This is quite normal and always happens when the
surface temperature of the evaporator is lower than the
dew point temperature of the ambient air.
7.4 ... the power consumption is too high
Please consult a qualified licensed installer.
7.5 ... the room temperature drops excessively
The water heater operation reduces the ambient air by
2 to 6 °F (1 to 3 °C). Notify your local licensed installer
if the ambient temperature drops abnormally.
7.6 ... other faults occur
Notify your local licensed installer. Refer to the water
heater number on the type plate next to the barcode.
Type: Accelera 300/WHP 300
Heat pump:
PN (Air 42° / Water 60°):
IN (Air 42° / Water 60°):
Type of Refrigerant:
Refrigerant charge:
Max. operating pressure:
Lock rotor current:
MCA:
Rated load compressor:
Motor fan:
Order-No.:
222423
DHW-cylinder:
Additional heating element:
Max. operating pressure:
Max. operating temperature:
Type of cylinder material:
Cylinder capacity:
Test pressure storage tank:
Observe the installation manual! Tested for leaks!
Made in Germany
No.:
xx
xx
/
xxxxxx
Voltage / Frequency:
Breaker:
P (rated power input):
Maximum allowable ratings
Protection class:
Nmax
Single phase 220-240 V, 50/60 Hz
15 amp.
2200 W, 9.17 A
IP 24
*222423xxxxxxxxxxxx*
1690 W
87 psi /
600
kPa
168.8 °F / 76 °C
Glass lined steel
80.044 Gal /
303
l
130.5 psi / 900 kPa
0.5 kW
2.17
A
R134A
1.9842 Lb. /
900
g
348.1 psi /2.4 MPa
13.4 A
10.4 A
2.3 A
38 W
STIEBEL ELTRON INC
17 West Street
West Hatfield, MA 01088
USA
282209-35237
26_03_01_1357
1
1 Water heater number
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