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INSTALLATION AND OPERATION MANUAL 

PAC HEAT RECOVERY WATER HEATER 

Page

 

30 

 

 

Maintenance

 

In order to achieve the maximum life from your PAC Heat Recovery Water Heater the 

following should be done annually : 

1.

 

Remove and check at least one of the two anode rods. Both anode rods should 

be replaced. 

2.

 

Check  the  operation  of  the  pressure/temperature  relief  valve  by  manually 

operation it to see that it will freely flow water should it be required to do so. If there is any 
doubt that it will not function properly, replace it.  

3.

 

Check all water fittings, valves, etc. to be sure there are no water leaks. Repair as 

necessary. 

4.

 

Check the operation of all controls such as the hot gas by pass valve aquastat, 

electric  element  controls,  refrigeration  head  pressure  controls,  or  any  other  controls 
necessary for the proper operation of the Heat Recovery Water Heater and ion and/or air 
conditioning systems it is connected to. 

5.

 

Recommend to check Mg. Anode every 6 months or 12 months (depends on the 

real water condition usability), If find the Mg. Anode was corroded until small remaining. 
Please change new Mg. Anode immediately. 
 
 
 
 
 
 
 
 
 
 
 
 

Summary of Contents for PAS

Page 1: ......

Page 2: ...ed refrigerant will run to the air condition system for release to condensing unit as a normal system Uniqueness PAC Heat Recovery Water Heater is designed to recover waste heat from refrigerate of th...

Page 3: ...tioning systems for long time or the use of air conditioners in small quantities The placement of this element for store up water heater PAC Heat Recovery Water Heater for all models are access points...

Page 4: ...INSTALLATION AND OPERATION MANUAL PAC HEAT RECOVERY WATER HEATER Page 3 Model Explaination Figure 3 Explaination for PAU model Figure 4 Explaination for PAS model...

Page 5: ...thread 1 2 male thread 3 8 Flare 3 8 Flare 47x78 47x78 19 19 PAU 100101 PAS 100101 100 100 1 1 3 4 male thread 3 4 male thread 3 8 Flare 3 8 Flare 47x101 47x101 23 23 PAU 100102 PAS 100102 100 100 2...

Page 6: ...nt leakage of refrigerant efficiently Cold water inlet Size 3 4 use for 50L and 75L tank and the size 3 4 use for 100L and 150L tank The inlet must to connected to a water tank at the minimum to preve...

Page 7: ...and Install Equipment Ball Valves 2 sets Size 1 2 for 50L 75L and Size 3 4 for model 100L 150L 200L Check valve Pressure Relief valve 1 set Size 1 2 for 50L 75L and Size 3 4 for model 100L 150L 200L F...

Page 8: ...INSTALLATION AND OPERATION MANUAL PAC HEAT RECOVERY WATER HEATER Page 7 3 User Manual and Warranty card...

Page 9: ...INSTALLATION AND OPERATION MANUAL PAC HEAT RECOVERY WATER HEATER Page 8 CONNECTING LIST Pattern 1 For Model PAS 050101 and PAU 050101...

Page 10: ...INSTALLATION AND OPERATION MANUAL PAC HEAT RECOVERY WATER HEATER Page 9 Pattern 2 For Model PAS 075101 and PAU 075101...

Page 11: ...ALLATION AND OPERATION MANUAL PAC HEAT RECOVERY WATER HEATER Page 10 Pattern 3 For Model PAS 100101 PAS 100102 and PAU 100101 PAU 100102 Pattern 4 For Model PAS 150151 PAS 150152 and PAU 150151 PAU 15...

Page 12: ...INSTALLATION AND OPERATION MANUAL PAC HEAT RECOVERY WATER HEATER Page 11 Pattern 5 For Model PAS 200151 PAS 200152 and PAU 200151 PAU 200152...

Page 13: ...INSTALLATION AND OPERATION MANUAL PAC HEAT RECOVERY WATER HEATER Page 12 Socket for Magnesium Anode 3 4 DRAWING OF PRODUCTS Pattern 1 Size and Main equipment for PAS 050101 and PAU 050101 model...

Page 14: ...INSTALLATION AND OPERATION MANUAL PAC HEAT RECOVERY WATER HEATER Page 13 Pattern 2 Size and Main equipment for PAS 075101 and PAU 075101 model...

Page 15: ...STALLATION AND OPERATION MANUAL PAC HEAT RECOVERY WATER HEATER Page 14 Refrigerant Inlet Outlet of coil Second coil for 2 coil model Pattern 3 Size and Main equipment for PAS 100101 and PAU 100102 mod...

Page 16: ...STALLATION AND OPERATION MANUAL PAC HEAT RECOVERY WATER HEATER Page 15 Refrigerant Inlet Outlet of coil Second coil for 2 coil model Pattern 4 Size and Main equipment for PAS 150151 and PAU 150152 mod...

Page 17: ...STALLATION AND OPERATION MANUAL PAC HEAT RECOVERY WATER HEATER Page 16 Refrigerant Inlet Outlet of coil Second coil for 2 coil model Pattern 5 Size and Main equipment for PAS 200151 and PAU 200152 mod...

Page 18: ...product for checking that it work well Have to give a manual of installation to user also Warning The system should be install by dealer or a technician Installation should be follow the instructions...

Page 19: ...high growth rate when the tank is heated it will explode as a danger to life Should be insulated with a heat pipe cooling editing If water pipes are installed incorrectly it will cause a water leak an...

Page 20: ...and save time during installation and on maintenance in the future 1 Installations Location 1 1 In case of installed multi air condition need to choose the most frequently used air and need to choose...

Page 21: ...heater as a picture as below 2 Installations Tank Measure and capture the water level to the point and drill holes for cleat embedded lead Expansion Anchors taken together with the machine screw numbe...

Page 22: ...IMPORTANT NOTE To reduce the risk of excessive temperatures and pressures in this water heater a pressure temperature relief valve has been installed by the manufacturer and should not be removed The...

Page 23: ...e heat recovery efficiency of the system by keeping the total system water volume at a uniform temperature and picking up the most available heat from any refrigeration unit which may be running Consu...

Page 24: ...INSTALLATION AND OPERATION MANUAL PAC HEAT RECOVERY WATER HEATER Page 23 Figure 5 Pipeline system installations Figure 6 Installing PAC Fre Heater Through one circuit into another...

Page 25: ...undertake the refrigeration connection portion of a Heat Recovery Water Heater installation Inlet and outlet stubs are copper tube for Freon applications and stainless steel male pipe thread for ammo...

Page 26: ...Heat Recovery Water Heater Caution The insulated pipe solution in and out should be wrapped separately from each other freely should not be insulated pipe to the solution together this will cause the...

Page 27: ...exceeding the single circuit connections to a specific PAC Heat Recovery Water Heater may be connected to two or more Heat Recovery Water Heater circuits on one or more Heat Recovery Water Heater hav...

Page 28: ...and refrigeration connections are leak free The unit is then ready for use Refrigerant charge should be checked after the system has achieved normal operation conditions Be sure to check for proper o...

Page 29: ...ATER Page 28 The illustrate and connection of Heat Recovery Water Heater Model PAS with Heat Exchanger Figure 8 Installing Refrigerant Charge with Air Condition Figure 9 Typical Refrigeration Connecti...

Page 30: ...ND OPERATION MANUAL PAC HEAT RECOVERY WATER HEATER Page 29 Figure 10 Typical Dual Refrigeration Unit Piping Figure 11 Fre Heater Location with Hot Gas Defrost Valve Oil Separator and or Discharge Muff...

Page 31: ...here is any doubt that it will not function properly replace it 3 Check all water fittings valves etc to be sure there are no water leaks Repair as necessary 4 Check the operation of all controls such...

Page 32: ...HEATER Page 31 Capability The result of Electric Power of Compressor without PAC Heat Recovery Water Heater The result of Electric Power of air condition and temperature of refrigerant by PAC Heat Rec...

Page 33: ...HEAT RECOVERY WATER HEATER Page 32 The result of Electric Power of air condition and temperature of refrigerant by PAC Heat Recovery Water Heater setting and water flow out Temperature of water flow o...

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