sensor for low pressure solar water heater intelligent controller
M-7 and M-8
Suitable for open loop solar Thermal water heater: low pressure
solar water heater(CNP-58) and Pre-heated solar water heater.
Model | M-7 and M-8 sensor |
NTC10K, | B=3950 |
Function | adding water, control electric heating elements etc. |
The device type M-8 is fully automatically controlled by micro
computer inside as well as designed with human personality.its
sensor is adopted the advanced foreign technology which is avoid
water leaking.water temperature and water level is displayed with
large aized LCD.loading water can be automatically operated by its
own.its main functions are water lever preset,low lever alarm,low
water pressure loading,timer and manual control which makes this
device safe convenient and practical.
1, Technical datas:
<1> Power: 220VAC±10%
<2> Size: 17x12.5x5cm
<3> Temperature detective precision: ±2°C
<4> Temperature detect range: 0~90°C
<5> Water level: 4 level
<6> Power loss: <5W
<7> Auto control supercharging pump/Electric heating belt ≤
500W
<8> Electric heating ≤ 2000W
<9> Electric leakage cut off current: < 10mA/0.1s
<10> Solenoid Valve: DC12V for pressurized and non
pressurized valves
<11> Pressurized working pressure: 0.02~0.8Mpa, for direct
water supply
<12> Non pressurized: working pressure: 0 Mpa, for water
supply and low pressure water supply
2, Main functions:
<1> Water level preset
<2> Leakage protection
<3> Intelligent water loading
<4> Constant water level loading
<5> Insufficiency water loading
<6> Pipe heat prevention
<7> Constant temperature heating
<8> Low water pressure water loading
<9> Auto control supercharging pump
<10> Dry heating prevention
<11> Power off memory
<12> All-weather water supply
<13> Intelligent heating
<14> Water temperture preset
<15> Temperature control water loading
<16> Water insufficiency alert
<17> Manual control
Quickly guidencea, Free brand/LOGO print based on 20GP/40HQ quantity
b, 1% freee spare parts
c, our factory audited by SGS, TUV and BV
d, Sea Port: Shanghai or Ningbo
e, Payment terms: T/T, L/C, Western Union
f, Delivery time: 12 days after deposit in account
g, Certificate: Europe Solar Keymark EN12976/EN12975/CE/CCC/ISO9001/ISO14001/
ISO45001Detailed Photos
Certifications
1,high efficiency solar collector
2,rock wool/glass firber insulation
3,KEYMARK,CE certified solar collector
4,Factory price
Heat Pipe Vacuum Tube Solar Collector Features1) Can be matched with any low pressure, high pressure hot water
system.
2) Use heat pipe for the heat conduction and can get a high heat
absorbtion efficiency and rapid heat transfer.
3) Easy plug-in design and installation.
4) Corrosion-resist Aluminium manifold and frame.
5) Optional 38° /45° Frame can resists wind with a velocity of
36m/s.
6) Can supply hot water to large amount water needer.
7) Economical for hotel, school, domitory, hospital and tall
high-buildings.
8) Non freezing
Material of Heat Pipe Vacuum Tube solar collector1. Manifold Channel: 0.8mm thickness Red copper
2. Manifold Outer: 2.0 mm thickness Aluminum Alloy
3. Tube Size: 58mm x 1.800mm
4. Insulation layer: 40-45mm thickness Rock Wool /Polyurethane
foaming
5. Hail resistance: 35mm
6. Max pressure: 6 bar
7. Frame: 1.8mm thickness Aluminum Alloy8. Connections: 3/4inchOUR SERVICE1, 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.FAQ1. 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.