Haier HSU24VHG(DB)-G&W Service Manual

Contents

Detach the service port’s cap of1. 3-way valve, and the valve cap for 2-way valveand 3-way valve. Connect the service port to the low side of the gauge manifoldOpen the handle on the low side of the gauge manifold and operate vacuum pump.2.Vacuum the tubing for at least 15 minutes. The vacuum level on the low side gaugeshould be 29.9 in of Hg, 76 cm of Hg, 0.1 MPa. when vacuuming is complete, closethe valve on the manifold and turn off the vacuum pump. The vacuum level shouldhold for 1-2 minutes. If the vacuum level does not hold, check the flared connectionsand repeat this step.3.Purging Method:To use vacuum pumpOpenOpen the 2-way valve 1/4 turn. After 5-6 seconds, close the valve and inspect forleaks with a leak detector or soap solution.4.No gas leakage? Go to step 6.5.Detach the charge hose6. from the service port, open 2-way valve and 3-wayGauge manifoldGaugemanifold(for R410A)2-way valve Liquid Side3-way valve Gas SideVacuum pumpTube(for R410A)Close2-way valve3-way valveOpen 90O2-way valve3-way valve2-way valve 3-way valve2-way valve3-way valveValve capValve capService port capAfter attaching the caps, check for leakage around the caps.7.8.Step 1. Step 2.Step 3.Step 7.Step 6.Step 4.The power source must be exclusively used for airƽ conditioner.In the case of installing an air conditioner in a moist place,ƽ please install an ea-For installation in other places, use an HVACR circuit breaker of time delay fuse.ƽIf the refrigerant of the air conditioner leaks, it is necessary to discharge all theƽaccording to the amount marked on the name plate.Please do not let other cooling medium, except specified one (R410A), or airƽenter into the cooling circulation system. This could cause high pressure and Power Source InstallationCAUTIONrth leakage breaker.(GFCI) On DrainageIt becomeshigh midway.The gap with theground is too small.There is the badsmell from a ditchIt waves.The end is imm-ersed in water.Please install the drain hose and ensure downward flow.Please don’t do the drainage as shown below.ƽƽPlease pour water in the drain pan of the indoor unit, andƽ is proper.In case that the attached drain hose is in a room, pleaseƽ apply insulation toLess than5cmconfirm that drainageto the hose to prevent condensation.Check Items for Test RunPlease kindly explain to our customers how to operatethrough the instruction manual.Check for Installation and Test RunƵƵ11+2= kgR410A2 kg2=1= BCDF EkgAThis product contains fluorinated greenhouse gases covered bythe Kyoto Protocol. Do not vent into the atmosphere.Refrigerant type:R410AGWP* value:1975GWP=global warming potentialPlease fill in with indelible ink,• 1 the factory refrigerant charge of the product• 2 the additional refrigerant amount charged in the field and• 1+2 the total refrigerant chargeon the refrigerant charge label supplied with the product.The filled out label must be adhered in the proximity of the productcharging port (e.g. onto the inside of the stop value cover).A contains fluorinated greenhouse gases covered by the KyotoProtocolB factory refrigerant charge of the product: see unit name plateC additional refrigerant amount charged in the fieldD total refrigerant chargeE outdoor unitF refrigerant cylinder and manifold for chargingContains fluorinated greenhouse gasescovered by the Kyoto ProtocolRefrigerant charge labelƵPut check mark in boxesTo prevent the gas leakage,continues, remove the refrigerant used for the leakage check and flaretubes again. Repeat vacuum and leak and if no leakage, proceed to step 6.replace the service port and valve caps.Gas leak from interconnecting tubing?Installation is on the interconnecting tubing?Are the connecting wirings of indoor and outdoor firmlyIs the connecting wiring of indoor and outdoor firmly fixed?Is drainage securely carried out?Is the ground wire securely connected?Is the indoor unit securely fixed?Is power source voltage the local codes?Is there any noise?Are the lights near the unit working normally?Are cooling and heating (when in heat pump) performing normally?Is the operation of room temperature control normal?inserted to the terminal block?Loosen the screws onƽ terminal block and insert the wires fully into terminalblock, then tighten the screws.If wiring is not correct, the unit will not operate properly and it could cause aƽFix the cable with a clamp.ƽConnectionIf the drain-elbow is used,ƽplease attach as shown in figure.(Note: Only for heat pump unit.)Attaching Drain-Elbowdefect in the unit.and connect the vacuum pump to the center port of the manifold.In case of a leak, try tightening the flare connections to fix the leak. If theleak stops, go to step 6. If the leak continues, check the flare connectionsand repair as needed, then go back to step 3. then proceed step 6. If leakvalve completely.refrigerant. Repair the leak, vacuum the unit then charge the liquid refrigerantinto air conditionercould cause a leak and lead to personal injuries.InstalltionDomestic Air Conditioner