Gree GRS-1.5/D150ANbA-K, Service Manual

Page: 49 / 81

GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL
47
3.2 Document Preparation for Commissioning
Running Parameters for Commissioning of Household Air Source Water Heaters
Project name: Unit model:
Commissioning performed by: Water tank model:
Rated capacity of the outdoor
unit (kW)
Capacity of the
water tank
Date
Maximum drop between the
outdoor unit and water tank (m)
Length of system pipe
Commissioning status:
□
Heat up
Status Parameter Unit Before Startup 60 minutes
Status parameters of the outdoor
unit
Outdoor ambient
temperature
°C
Power supply
voltage
V
Air intake
temperature
°C
Air exhaust
temperature
°C
Parameters of the water tank
Temperature of the
temperature
sensor for water
outlet pipe
°C
Temperature of the
water temperature
sensor
°C
Summary
Checklist for Commissioning of Household Air Source Water Heaters
No. Check Item Pass
Unit
The heat exchange space for unit installation meets the related requirement.
A drainage ditch or outlet is available near the installation position to facilitate water
drainage.
The drop between the outdoor unit and water tank meets the unit’s design
requirement.
The foundation or support is solid and secure to ensure stable operation of the unit.
The unit must be installed in a horizontal manner without any tilt.
Total pipe length meets the requirement.
Cable diameter of the outdoor unit meet the unit’s design requirement.
The circuit breaker and leakage circuit breaker meet the unit’s design requirement.
The position for installing the water tank must have sufficient load-bearing capacity.
The drain outlet for water tank is near the drainage ditch or drainage hole.
The safety check valve and drainage pipe are installed securely.
The safety check valve and drainage pipe are placed in the drainage pipe for
drainage.
Insulation pipes such as PPR pipes are adopted as the inlet/outlet pipe for cool
water and hot water. The length (L) of each section of insulation pipes is larger than
or equal to 70
×
R
2
(R indicates the internal radius of pipe).
Water leaks in the hot water tap.
Wired
controller
The communication cable of the wired controller is 50 mm or more away from the
strong electricity cable.
The wired controller is not installed in a place with high temperature and high
humidity, such as the kitchen and bathroom.
It is recommended that the wired controller is installed indoor. If it is installed
outdoor, an opaque rain-proof box must be provided to protect it against sunlight
and rain.