Separated pressure solar water heater' water tank temperature
sensorSpecifications
Solar controller
1.Model:SN868C8
2.Automatic operation
3.With many functions
4.Use separated pressurized solar system
SR868C8 Solar Water Heater Controller, solar system controller
Introduce
solar controller suitable for separated pressurized solar system
| Model | SR868C8 sensor |
| Power | 110V DC or 220V AC |
| Function | separated pressure solar water heating system |
Main technical data:
APPLICATIONS CAPACITY
Max.number of collectors:1
Max.number of storage tanks:1
Max.number of relays:4
Max.number of sensors:5
Max.number of visualization application system: 1
FRT:1* Rotary vane type electron flow meter
Size of Keypad:120mm x 120mm x 18mm
Size of Controller(1.5KW version): 187mm x128mm x46mm
Size of Controller(3KW version): 218mm x165mm x55mm
Size of Controller(4KW version): 218mm x165mm x55mm
Power supply: AC100-240V,50-60Hz. .
Power consumption: < 2.5W
Rated impulse voltage: 2.5KV
Housing: Plastic ABS
Protection type: IP41
Mounting: Wall mounting
Operation: 10 push buttons at the front cover.
Accuracy of temperature measuring: ± 0.1oC
Range of collector temperature measuring: -10oC ~220oC
Range of tank temperature measuring: 0oC ~110oC
Suitable power of pump: 3 pump possible to be connected
Suitable power of HK (backup heating):
1pc(1.5KW version) <1.5KW
1pc(3KW version)< 3KW
1pc(4KW version) <4KW
Inputs: 5 sensors,
1pcs*Pt1000 sensor (≤500oC) for collector (silicon cable≤280oC),
4pcs*NTC10K, B3950 sensor (≤ 135oC) for tank, (PVC cable ≤105oC),
1*FRT Rotary vane type electron flow meter
Outputs: 4 relays, for circulation pump and backup heating
3*Electronmagnetic relay, Max.current 2A
HK relay(1.5KW version):10A
HK relay(3KW version):15A
HK relay(4KW version):20A
Ambient temperature: -10oC ~ 50oC.
Water proof grade: IP41
Main functions:
DATE---Date setting
Timed heat---backup heating
Circle---Hot water circulation
LOAD---Setup Loading tank1
COL---Collector1
PUMP---Pump control mode
COOL---Cooling function
AUX---Auxiliary function
MAN---Manual mode
BLPR---Blocking protection function
OTDI---Thermal disinfection function
FS---Flow meter type selection.
UNIT---C-F unit switch
RST---factory setting
PASS--- password set
Holiday function
Screen Protection
Trouble Protection
Trouble Checking
System:
Installation Instructions
Suitable both Flat roof and Pitched roof
OUR SERVICE
1, Fast delivery, 40 feet container quantity will deliver in 7
days.
2, Experienced sales team assistant you, fast confirmation for
every related questions from you.
3, Rich experiences for differenct Market (countries), kinds of
customized design will be welcomed.
4, Assistant you load other goods with solar water heater in one
container.
5, Installation guide and train
6, LOGO print and water tank and cartons.
FAQ
1. Is solar water heating a viable alternative to gas or
electricity?
Solar should not be seen as a alternative to gas or electricity,
but rather a supplement. Solar cannot totally replace the need for
gas or electric heating as there are sometimes days when there is
little sunlight. When averaged over a year, a correctly sized solar
system can provide 60%-70% of a household's hot water needs.
Providing more than this is unadvisable, as too much heat will be
produced in the summer. The hot water system system can easily be
automated so hot water is guaranteed regardless of sunlight levels.
2. How long will it take to recoup my investment?
QIRUI solar collectors are much more affordable than many other
solar hot water heaters. For a household of 4, the price of a full
system may not be too much more than a new electric or gas system.
Depending on you location (solar levels) and current hot water
usage the annual electricity or gas saving will differ. However in
a normal household that spends 25% of its electricity bill on hot
water heating, the full cost of the purchase may be recouped as
quickly as 4-5 years in reduced bills. You will definitely make
considerable savings during the life of the solar hot water heater.
3. Can QIRUI solar collectors be used in cold conditions?
Yes. QIRUI collectors can be used in temperatures as low as -30oC,
although performance is greatly reduced in such extreme conditions.
Good heat output is still achieved in mild sub-zero conditions.
4. What happens if one of the tubes is broken?
Firstly, tubes are very strong and not easily broken, but if the
worst should happen, solar tubes can be replaced very easily. They
are inexpensive and available though your local QIRUI distributor.
The HAINING QIRUI solar collectors can operate with several broken
tubes, but the efficiency will be reduced, so it is recommended
that broken tubes be replaced immediately.
5. Will water be heated on a cloudy day?
Yes. Although the heat output of the solar collector is reduced on
overcast days it will still be able to provide heating. If it is a
heavily clouded day or raining, then more gas or electric boosting
may be required to maintain water at the required temperature. This
system will be automated so you don't have to worry about running
out of hot water on a rainy day.
6. Can I use a solar collector with my existing hot water system?
Normally yes. Simple retrofit valves can often be used to allow
solar to connect to your existing cold water inlet. If your tank
cannot accept the solar input directly an additional storage tank
can be installed to pre-heat the cold water prior to entering the
existing tank.
7. Are the solar collectors noticeable on the roof?
If only the collector is mounted on the roof it should blend into
the roof design quite well. HAINING QIRUI solar collectors are very
thin and can be flush mounted on a roof. From a distance they look
somewhat like a skylight. You may have to check with your local
council regarding building restrictions when installing your solar
collector. Click here to view installation photos.
8. Can QIRUI solar collectors be mounted on a flat surface?
Yes they may be mounted on a flat roof, or on the ground by using a
stainless steel Flat Roof Frame. The collector should be installed
at a minimum of 20o angle to ensure optimal heat pipe operation.
9. How do I protect my solar system during subzero temperatures?
If you have a system that is operating in areas with subzero
temperatures then freeze protection must be implemented. The
easiest means of preventing freezing is to use a controller with a
low temperatures setting, so when the manifold temperature drops
below a certain pre-set temperature (5oC/40oF), the pump will
circulate, warming the collector with water from the bottom of the
storage tank. The pump will not run continually, just periodically,
the frequency of which will depend on the outside temperature. In
extremely cold areas, a closed loop using a glycol/water mix may be
appropriate.
10. Will the QIRUI solar collector be a fire hazard during hot, dry
weather?
No. The QIRUI solar collector's components are all high temperature
rated and non-flammable so even during strong sunlight with the
circulation pump turned off (stagnation), the system will not catch
alight or give off any sparks. The majority of the solar
collector's components are stainless steel, aluminium, glass or
glass wool. The manifold outlet should be fitted with a temperature
relief valve, which will prevent the manifold temperature from
exceeding 99oC / 212oF.
