STIEBEL ELTRON Accelera 300 - 6. Maintenance and care; 6.1 Descaling; 7. What to do if; 7.1 the water heater does not deliver hot water

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WWW.STIEBEL-ELTRON.COM ACCELERA 300/WHP 300 | 13
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INSTALLATION
SPECIFICATION
13.3 Specification
Model DHW heat pump
Type Accelera 300/WHP 300
Part no. 222423
Version with passive defrost and booster heater
Operating data
Application limits for heat pump operation °C 6 to 42
DHW temperature Heat pump °C 60
DHW temperature Heating element °C 60
Air flow rate m
3
/h 550
Cylinder capacity Gal / l 80.044 / 303
Refrigerant / filling weight -- / g R 134a / 900
Dimensions H /Ø mm 1875 / 660
Height of unit when tilted mm 1990
Height of unit when tilted including packing mm 2285
Weight dry/wet kg 130 / 432
Water connection inch R3/4""NPT
Condensate connection inch 3/4“
Condenser Safety heat exchanger (tank wrap-around condenser)
Permiss. operating pressure, water side Psi / MPa 87 / 0.6
Permiss. positive pressure, refrigerant side Psi / MPa 348.1 / 2.4
Electrical specification
Voltage / Frequency V / Hz 1/N/PE ~ 240 / 60
Protection IP 24
Maximum allowable rating
1)
kW 2.2
Electrical protection A 15
Rated current WP A 2.5
Rated power consumption WP
2)
kW 0.5
Power consumption, booster heater kW 1.690
Heating output WP
3)
kW approximately 1.7
COP (t)
3)
3.18
1)
Tamb = 42°C Twater = 60 °C / 240 V
2)
Test point to DIN 8947 at 15 °C air temperature, 70 % rel. humidity and 45 °C
water temperature.
3)
Test point at 15 °C air temperature, 70 % rel. humidity, heating up water from
15 °C to 60 °C (according to EN 255 T3, 240 V / 60 Hz)