Failure phenomenon: heat pump hot water unit does not work Fault reasons: 1, no power input 2, part of the fuse fuse fuse circuit 3, short circuit power trip 4, the power cord loose 5, the transformer burned 6, the relay burned 7, Compressor overload protection circuit 8, the thermostat is bad or not set 9, high voltage relay circuit 10, low voltage relay circuit 11, water flow control switch is bad 12, phase sequence error 13, no temperature display or display failure 14, insufficient pump flow 15, clogged filter 16, water circuit blocked or too small 17, following the switch does not work 18, the fan does not turn 19, the compressor power phase is not correct Reverse phase protection 20, insufficient water flow or target water flow switch malfunction to solve Ways: 1, the reset of the circuit breaker 2, the replacement of the fuse 3, find out the reasons for the trip, reset the relay 4, tighten the current wiring 5, replace the transformer 6, replace the relay 7, replace the thermal switch 8, replace the thermostat Or reset 9, check the cause of circuit break, reset after solution 10, adjust setting 11, repair or replace 12, adjust phase sequence 13, replace thermal probe 14, replace or repair 15, clean up internal debris 16, clean up or replace Pipeline 17 Check the open normally open / normally closed circuit or replace 18, check the fan relay and motor 19, adjust the power in the two phases 20, check the water pump and hot and cold water valve and pump electrical failure phenomenon: Compressor noise causes: 1, Internal pipe, valve parts loose parts, vibration 2, low oil pressure 3, muffler is bad 4, suction and exhaust valve is bad 5, suction valve broken 6, thermal expansion valve open too large 7, compressor noise Way: 1, check the fastening pipe, valve 2, check the reason, replace the oil 3, replace the muffler 4, replace the suction valve 5, replace the suction valve 6, adjust the thermal expansion valve opening 7, the compressor tight Firmware loose failure phenomenon: Compressor operation overload Fault reason: 1, the power supply voltage is too low 2, the compressor terminals loose 3, refrigerant charge over 4, the system has non-condensable gas 5, the compressor overload relay failure Solution: 1, check the power supply voltage 2, check the fastening terminals 3, let go of excess 4, let go or reinjection 5, replace the relay Fault phenomenon: compressor high voltage protection Fault reason: 1, refrigerant charge over 2 , Motor does not turn or burn out 3, the pressure control is not normal 4, the solenoid valve failure 5, the defrost cycle is too long Solution: 1, spare the excess 2, check repair or replacement 3, adjust the pressure controller 4, repair or replacement 5, replace the thermostat switch, defrost controller, time relay Fault phenomenon: compressor does not stop Fault reason: 1, thermostat failure 2, the thermostat position placement error 3, sensing probe resistance Wrong value or sensing line broken solution: 1, repair and replace the thermostat 2, reposition the appropriate location 3, replace the sensor probe Symptom: compressor continuous operation, but poor heating capacity Fault reason: 1, the system cooling Agent is missing 2, the compressor exhaust valve damage 3, the solenoid valve leak 4, defrost controller, time relay failure 5, the thermal expansion valve failure 6, the system has air and other non-condensable gases 7, the system Moisture is greater than 0,0025% 8, Hydrophilic aluminum pieces clogged with dust Solution: 1, Filling refrigerant after leak detection 2, Replacing or repairing 3, Replacing electromagnetic reversing valve 4, Replacing or repairing 5, Replacing or repairing or Re-adjust the opening degree 6, emissions re- Note refrigerant 7, replace the desiccant to re-fill the refrigerant 8, with a brush and tap water scrub Symptom: fan does not run Fault causes: 1 fan motor burned 2, fan relay burned 3, the power cord off solution: 1, replacement or Repair 2, replacement 3, check repair Fastening failure phenomenon: the fan does not run But there buzz sound Failure reasons: 1, the fan motor bearing card case 2, the motor phase loss 3, the fan power cord loose solution: 1, replace the bearing 2 , Check, repair or replacement 3, check the wiring Fault phenomenon: the compressor starts hum but does not run Fault causes: 1, the power cord burned or missing phase 2, the compressor motor burned 3, the compressor off the oil bearing 4 , Compressor card cylinder (crankshaft, connecting rod broken) 5, terminal damage solution: 1, repair the power 2, replace 3, identify the cause, replace 4, replace 5, repair failure phenomenon: compressor overcurrent protection action Fault reasons: 1, the exhaust pressure is too high 2, the power supply voltage is too high or too low or the phase imbalance 3, loose wiring 4, the compressor motor is burned 5, the compressor card cylinder 6, overcurrent protection failure to solve Way: 1, check the compressor, the discharge of non-condensable gases 2, check the power and contact 3, fastening joints 4, replace the compressor 5, compressor repair 6, replace the over-current protection Fault phenomenon: compressor oil failure Reason: 1, the refrigerant circuit is blocked 2, the suction pressure is too low 3, the thermal expansion valve is open too little solution: 1, leak detection, add refrigerant 2, increase the evaporator side load, check the suction pipe valve with or without plug 3, Cleaning or replacement of thermal expansion valve Failure phenomenon: electromagnetic reversing valve does not operate Fault reasons: 1, electromagnetic reversing valve failure 2, transformer burned 3, electromagnetic coil burned or short circuit 4, electromagnetic reversing valve deformation card 5, compressor valve Damage solution: 1, replace the solenoid valve 2, replace the transformer 3, replace the solenoid coil 4, replace the solenoid valve 5, replace the valve plate valve failure phenomenon: Unit suction pressure during operation is too high Failure reasons: 1, heat Expansion valve failure 2, the solenoid valve failure 3, the heat exchanger more than 4 ash, pipe plug solution: 1, cleaning or replacement of the thermal expansion valve 2, replace the solenoid valve 3, cleaning the heat exchanger 4, excluding Clogged Barrier phenomenon: the defrost process does not stop Fault reasons: 1, less refrigerant 2, defrosting controller improper adjustment 3, the valve damage 4, the defrost controller time relay thermal probe and other components failure 5, the compressor valve Damage solution: 1, leak detection, trapped, filled with refrigerant 2, adjust the defrost controller 3, replace the valve 4, replace the malfunction element 5, replace the valve disc Fault phenomenon: the cause of the compressor surface frosting : 1, thermal expansion valve temperature package off 2, thermal expansion valve open too large 3, thermal expansion valve failure 4, refrigerant charge less than 5, thermal expansion valve temperature set properly 6, thermal expansion valve spool stuck Solution : 1, re-banding temperature package 2, adjust the thermal expansion valve 3, replace the thermal expansion valve 4, leak detection, trapping, filling refrigerant 5, readjustment 6, cleaning, replacement of thermal expansion valve
Overhead sectional door most widely used for loading areas on all types of industrial premises and Designed with a curved overhead track, these vertically-opening sectional doors can be installed in areas with reduced head room. They provide heat and sound insulation with its composite panel construction.
The counterbalance and cable system provides quiet and straight forward operation for manual doors. Electric operation is available for larger applications that can incorporate many alternative operator options to suit all client requirements.
The standard outer panels are manufactured from 0.5mm thick, high quality zinc coating to BS EN 10147
For the best weather protection the sectional door panel has an interlocking hinged joint integrating a high quality seal the full length of the panel.
A counterbalance system is incorporated into the sectional overhead door to ensure efficient and effortless operation.
The counterbalance comprises of springs mounted on a steel shaft that are high tensile helical wound steel. It has been heat treated for enhanced performance for around 50,000 cycles.
Reducing shaft friction is achieved with the aid of brackets and guide rollers incorporating highest quality sealed bearings.
Overhead Sectional Door,Overhead Sectional Garage Door,Automatic Overhead Sectional Door, Overhead Insulated Garage Door
Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.hfhighspeeddoor.com