Heat pump water heater routine maintenance and care methods

Heat pump water heater is a high degree of automation equipment, regular use of the unit status check, if the unit for a long-term and effective maintenance and repair, unit operation reliability and service life will be unexpectedly improved. 1, outside the installation of water filters should be regularly cleaned to ensure clean water system to avoid damage to the unit due to water filter dirty block. 2, the user should pay attention to the use and maintenance of the unit: all the safety devices in the unit are set at the factory, do not adjust. 3, always check the unit's power supply and electrical system wiring is solid, the electrical components are abnormal, if timely repair and replacement. 4, often check the water system replenishment, water tank safety valve, liquid level controller and exhaust device work is normal, so as to avoid the air into the system resulting in reduced water circulation, thus affecting the unit heat and the reliability of unit operation. 5, check the water pump, water valve is working properly, water pipes and pipe joints whether leakage. 6, the unit should be kept clean and dry around, well-ventilated. Regularly clean (January-February) air-side heat exchanger, to maintain a good heat transfer. 7, always check the work of the various components of the unit, check the machine pipe joints and inflatable valves at the oil, to ensure that no leakage of refrigerant units. 8, do not pile up debris around the unit, so as not to block the inlet and outlet, the unit should be kept clean and dry around, well-ventilated. 9, if the downtime is longer, the water in the unit pipeline should be let go, and cut off the power, set the protective cover. When running again, check the system before turning it on. 10, the unit fails, the user can not be resolved, please call the local special maintenance department, in order to send the timely maintenance. 11, the host condenser cleaning, it is recommended to use 50 ℃ -60 ℃, the concentration of 15% hot phosphoric acid solution to clean the condenser, start the host comes with a circulating pump cleaning 3 hours, and finally washed with tap water 3 times. (It is recommended to reserve the tee port when installing the pipeline, and to seal an interface with the tap) to take over for cleaning. Do not clean the condenser with a caustic cleaning solution. 12, the tank to be used in a period of time (usually two months, depending on the local water quality may be) to remove scale.

High Speed Door Accessories

About high speed Door Accessories:

1.Driving system: High Speed Door Servo System motor and control, motor SNMA / SEJ +reducer+flang+encoder+control box

2.Other accessories: Middle aluminium bar, bottom aluminium bar, aluminium vertical track, stainless steel vertical track, brushes,round nylon strip, PVC roll, rolling steel tube complete, drum be;;s for rolling tube, side end covers, stainless steel cover, steel tubes, air bag sensor system, safety light beam, Microwave sensor 24 Gigahertz,PVC welding machine, smoke and fire sensors, PVC transparent window, magnetic loop, photocell, remote control, manual push button, sound warning alarm Led lamp traffic light

For some main accessories, here is detain introduction:

1).24G radar sensor:

Brand: Hofic

Technology: Microwave processor

Maintain time: 0.5s

Protection: IP54

Transmitting frequency: 24.125GHz

Maximum installation height: <5meter

Transmitting power density: <5mw/cm2

Power consumption: <1W(VA)

Installation angle: 0-90°(lengthways) -30-30°(crosswise)

Supply voltage: AC&DC 12V-30V

2).Photocell:

Approval CE & ISO9001

Power supply AC/DC 12-30V

Static current 25A

Action current 40mA

Mounting distance Max 10m

NO or NC contact Done by NO./NC. contact selection

Working environment temperature -42℃ to +45℃

Working environment humidity 10 to 90%RH

Appearance dimensions( controller) 123*50*32mm(L*W*H)

Appearance dimensions(Magic eye head) 19*13mm(L*D)

3). Remote control

Operating Voltage: AC220V/50HZ+-20%

Transmit power:≤100mW;Super regenerative module, strong anti-interference

Operating temperature:-30℃-+70℃

Working frequency: 433MHZ;transmitter 1527, millions of encoding chip

Accept sensitivity:≤110dB

Manipulation method: electric remote control

Configure the quantity: Wireless number; factory configuration transmitter two. Can be equipped with PT2272 digital decoder chip

Configure the function: Up, down, stop, anti-lock full-featured reproduction

4). Magnetic loop

Voltage: 12V AC/DC +-10% 24V 115V AC+-10% 230V

Power: <2VA

Continued electrical output: 7A / 250V AC

Frequency range: 20 to 200K Hz

Response time: infinity (factory setting) or adjust maintain time

Sensitivity: 0.01% to 0.1% divided into 3 levels

Protection level: IP30

Electromagnetic compatibility (EMC) Complies with EM50081-1 and EN50082-2

Detection loop inductance: the limit of 40uH to 100uH ideal value 80uH to 300uH

Operating temperature: -25 ℃ to 70 ℃

Storage temperature: -40 ℃ to 85 ℃

Relative humidity: <90% non-condensing

Temperature compensation: automatic compensation up to 50 ℃ / h

Connection type: 11 pin DIN rail socket

Dimensions: 41 * 78 * 85 mm (width * height * length)

Weight: 250 grams

5). manual push button

This exit switch button is made of ABS and has built-in indicator light make it looks more elegant and fashionbale. It can be widely used in public entrance gates, public door, home, office, hotel, etc.

Door Exit Button Push To Exit Switch Door Opener For Access Control Security

Main Feature

Fashionable appearance

Made of ABS Plastic

Easy to install and operate

Used for access control

Specification

Mechanical Life: 500,000 test

Material: Plastic

6). Limit switch encoder

Voltage: DC5V-24V

Output voltage: high voltage≥85%Vcc, low voltage≤0.5V

Maximum mechanical speed:6000rpm

Anti-vibration: 50m/s,10-200HZ,XYZeach way 2 times.

Current consumption:≤30mA

Response frequency: 0-100KHZ

Protection: waterproof,oil proof,dust prevention, IP54

The output code system: binary code

Operating life: MTBF≥30000(+25℃,2000rpm)

Rotational inertia:4.0x10-8kgm²

Maximum load:radial direction20N

Axial direction:10N

Weight: about 0.4kg

High Speed Door Accessories,High Speed Door,Electronic High Speed Door Accessories

Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.pvchighspeeddoor.com