AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL
6
Sound Power Level
(
***
)
dB(A) 58
Operating Range -7~45
Notes:
(1)
(
*
)
Value obtained with the following conditions: Outdoor temperature: 20 DB/15 WB; Water tank
temperature (start/end): 15 /55 .
(2)
(
**
)
Value obtained with an air temperature of 7 and a water inlet at 10 , as per EN16147-2011,
(EU) No 814-2013.
(3)
(
***
)
Value obtained indoor placement, with 2m long inlet and outlet wind duct, as per EN 12102-2008,
(EU) No 814-2013.
(4) The installation of suction and backflow conduits on the heat pump lessens its performance.
Under RAPID function, electric heater helps to heating water.
Please always see the nameplate for the exact data as this table is subject to change.
4.3 Work Temperature Range
Models
GRS-S3.0G/NbA-K GRS-2.4/D270ANbA-K
Heating -7~45 -7~45
Note: The above value range indicates the outdoor ambient temperate range for normal operation of
the unit. For details on the configurable range of water temperature, see the nameplate of the water
tank.
5 Working Principle
5.1 Brief Introduction to Working Principle
As the refrigerant has different phase-transition temperature under varied pressure, it enables the
heat pump to transfer heat of low-temperature heat source to the high-temperature heat source. The air
source water heater unit utilizes the heat pump to obtain heat from the ambient low-grade energy (air
source) via thermodynamic cycle by consuming partial electrical energy, and then delivers heat to the
water tank for heating up water.
5.2 Working Diagram
5.2.1 Working Diagram
Energy obtained for water heating Q3 = Input electric
energy Q1 + Heat absorbed from environment Q2
To Next Page
Loading...
