GIA HTW HTW-AT-O-200VA2, Owners And Installation Manual

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Part 1. The Characteristics and Working Principles
Air source heat pump water heater is one of the most advanced water heater appliances with the
highest energy efficiency ratio in the world. The operational principle of heating is to absorb heat
from the air based on the changing state of the refrigerant in the refrigerant line system, and then
release heat into the water so the storage water's temperature increases, so as to heat the hot
water.
This product is suitable for domestic use, enterprises and institutions, service business and other
industries, providing hot water for shower and washing.
■
Characteristics
High-Efficiency, Energy-Saving
This product consumes little electric power. It absorbs a large number of free thermal energy from
the air with high heat-collecting efficiency and low operational cost. Compared with the traditional
electric water heater, the air source heat pump water heater can save energy by 70% or above.
Environmental Friendly
This product consumes natural energy, with no air pollution, no smoke emission and no harmful
gas emission. It has zero-pollution and is absolutely environmental friendly.
Safe and Reliable
This product's operation separates the water and the electricity, excluding any potential safety
problems of explosion, combustion, electric shock, poisoning etc.
Convenient-To-Use
This product has the electricity-assistant heating function, so it is not influenced by cloudy, rainy or
snowy weather, no matter day or night. It can produce hot water efficiently in the environment
ranging -15
℃
~-43
℃
.
Intelligent Control
This product has micro-computer unit to control, easy to operate and with automatic memory
function when power supply interrupts. It doesn't need the guarding of a special person. Besides,
the electricity-assistant function is together with anti-dry and anti-over-high-water-temperature
protection.
Stand Wear and Tear
The core component compressor is of high-quality with strong reliable performance and long
service life.
Compatible with photovoltaic inverter
T
his product can be connected to photovoltaic inverter, exploits any overproduction of electricity
for free.
■
Working Principles
1. Working Principles of Air Source Heat Pump Water Heater
The compressor draws refrigerant vapor which is low temperature and low pressure from
evaporator and significantly increases the vapor's pressure and temperature. Then the refrigerant
will exchange heat with water in the water tank and become liquid state. The water keeps
absorbing the heat and the temperature is rising. The high pressure liquid will go through the
throttling device to significantly reduce pressure and temperature. Finally the fan draws air
through the evaporator and the cold liquid refrigerant absorbs heat from air to become vapor
again. The refrigerant will run again and again the above way so as to heat water.
Before maintenance, please check the following matters:
Non-Unit
Failure
1) There is water flow out of the drainage outlet of the safety valve:
When producing hot water, the cold water within the appliance is heated and
expands, so there is water flow out of the drainage outlet of the drain valve, which
is normal case. However, if there is water extruding continuously, that means the
safety valve loses efficacy. You should stop using the appliance and replace the
safety valve as soon as possible.
2) The duration for heating a whole tank’s water becomes longer:
When the temperature is quite low in winter (e.g. 0
℃
), the heat pump’s
performance of producing hot water will not be as good as usual, so the duration
for heating a whole tank’s water becomes longer.
Please
check
again.
1) The appliance operates or stops automatically:
a) Please check if you have set a timer.
2) The appliance does not work:
a) To check if the power is on;
b) To check if the appliance is turned off;
c) To check if the fuse is broken;
d) To check if the appliance’s protection device is working (the indicator light
keeps glittery).
3) Performance of producing heat is not good:
a) To check if the air inlet and outlet are blocked.
ATTENTION
If the appliance remains abnormal after you check as above, please contact the local service
center or dealer to send servicemen to repair the appliance promptly. Try to avoid the fuse fusing
or the leakage protector turning on and off back and forth.
Part 7: After-Sales Service
Dear User:
We sincerely express our gratitude to you for using our brand products. Our company follows the
target that "quality first, customer top". For the purpose of serving you the best in a long term,
please fill the user information in the custom info card, and thanks for your cooperation. If some
exceptional conditions happen to the air source heat pump water heater, please check and solve
it according to “table 1 of malfunction code” and “table 2 of common malfunctions”. If you still
cannot solve it, please contact our company's special maintenance center.
You can also directly contact the after-sales service center and inform us the following
information:
(1) Product's name, model number and purchase date;
(2) Detailed information about the malfunction;
(3) Your contact information including address and name.
According to the national regulations, our company offers after-sales service for the manufacturing
and selling products through regulated channels. The appliance warranty is six years, the
accessories are one year, and counts from the date of purchase (subject to the purchase invoice).
If the product's malfunction belongs to one of the following circumstances, we offer charged after-
sales service:
-22-
After-Sales Service The Characteristics and Operational Principles
28