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PAC PAS Installation & Operation Manual

Heat recovery
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Summary of Contents for PAC PAS

  • Page 2 It is easily connected to existing refrigeration unit, either air or water cooled. PAC Heat recovery Water Heater model PAS is a de-Superheater which removes most or all of the latent heat of the hot discharge gas from the compressor and uses the existing condenser to remove the remaining heat and condense the refrigerant.
  • Page 3 Heater where the tank bottom when placed vertically. The outer jacket of PAC Heat Recovery Water heater :- PAU model are made of powder coated steel 304 which it is high corrosion resistance, non corrosive in case of install in the sea area.
  • Page 4 INSTALLATION AND OPERATION MANUAL Model Explaination Figure 3 : Explaination for PAU model Figure 4 : Explaination for PAS model. PAC HEAT RECOVERY WATER HEATER Page 3...

  • Page 5: Specifications

    INSTALLATION AND OPERATION MANUAL Specifications PAC Heat Recovery Water Heater PAU and PAS model are designed for use with air or water cooled refrigeration units. The size of the units and refrigeration systems on which each model may be used are shown in Table 1 Water No.

  • Page 6: Product Content

    The three layer of PAC Heat Recovery Water Heater :- Outer : The outer jacket of PAU model made of stainless steel 304 high resistant to corrosion and rust. For the PAS model is made of powder coated steel to protect against corrosion.
  • Page 7 INSTALLATION AND OPERATION MANUAL damage from temperature and pressure is too high. PAC Heat Recovery Water Heater is the water heater clean and safe energy truly. 2. Valves 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.
  • Page 8 INSTALLATION AND OPERATION MANUAL 3. User Manual and Warranty card PAC HEAT RECOVERY WATER HEATER Page 7...
  • Page 9 INSTALLATION AND OPERATION MANUAL CONNECTING LIST Pattern 1 : For Model PAS-050101 and PAU-050101. PAC HEAT RECOVERY WATER HEATER Page 8...
  • Page 10 INSTALLATION AND OPERATION MANUAL Pattern 2 : For Model PAS-075101 and PAU-075101. PAC HEAT RECOVERY WATER HEATER Page 9...
  • Page 11 INSTALLATION AND OPERATION MANUAL 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-150152. PAC HEAT RECOVERY WATER HEATER Page 10...
  • Page 12 INSTALLATION AND OPERATION MANUAL Pattern 5 : For Model PAS-200151, PAS-200152 and PAU-200151, PAU-200152. PAC HEAT RECOVERY WATER HEATER Page 11...
  • Page 13 INSTALLATION AND OPERATION MANUAL DRAWING OF PRODUCTS Socket for Magnesium Anode 3/4” Pattern 1 : Size and Main equipment for PAS-050101 and PAU-050101 model. PAC HEAT RECOVERY WATER HEATER Page 12...
  • Page 14 INSTALLATION AND OPERATION MANUAL Pattern 2 : Size and Main equipment for PAS-075101 and PAU-075101 model. PAC HEAT RECOVERY WATER HEATER Page 13...
  • Page 15 INSTALLATION AND OPERATION MANUAL Refrigerant Inlet – Outlet of coil Second coil for 2 coil model. Pattern 3 : Size and Main equipment for PAS-100101 and PAU-100102 model. PAC HEAT RECOVERY WATER HEATER Page 14...
  • Page 16 INSTALLATION AND OPERATION MANUAL Refrigerant Inlet – Outlet of coil Second coil for 2 coil model. Pattern 4 : Size and Main equipment for PAS-150151 and PAU-150152 model. PAC HEAT RECOVERY WATER HEATER Page 15...
  • Page 17 INSTALLATION AND OPERATION MANUAL Refrigerant Inlet – Outlet of coil Second coil for 2 coil model. Pattern 5 : Size and Main equipment for PAS-200151 and PAU-200152 model. PAC HEAT RECOVERY WATER HEATER Page 16...
  • Page 18 Caution  Move the machine carefully. Overhaul should be at least 2 people, because machine weigh from 16 Kg up.  Must be turn off an electricity of air conditioning before the operation. PAC HEAT RECOVERY WATER HEATER Page 17...
  • Page 19 In case of need to move a large hot water tank and very much heavy For safety, need to use the tool to move the hot water tank by using the cable hook and hold the handle 4 points. The balance must be aware of the weight before lifting. PAC HEAT RECOVERY WATER HEATER Page 18...
  • Page 20 PAC Heat Recovery Water Heater PAS model can be installed inside and outside building. For installation should be check for capability of PAC tank PAS model because it is an important point for investigation. The weight is showing on Table 1.
  • Page 21 Measure and capture the water level to the point and drill holes for cleat embedded lead (Expansion Anchors) taken together with the machine screw number M8 tightening to four points as a pictures as below. Look from side Look from above Knot (number M8) Expansion Anchors PAC HEAT RECOVERY WATER HEATER Page 20...

  • Page 22: Important Note

    INSTALLATION AND OPERATION MANUAL 3. Pipeline installations  PAC Heat Recovery Water Heater is equipped with 1 ½” and ¾” connections for cold water inlet and hot water outlet.  The water inlet connection is labeled “Cold” and the outlet connection is labeled “Hot”...
  • Page 23 PAC Heat Recovery Water Heater. At those times a piping scheme should be used. This allows the PAC tank to operate at its optimum heat reclaim while the system temperature is at a higher level.
  • Page 24 INSTALLATION AND OPERATION MANUAL Figure 5 : Pipeline system installations Figure 6 : Installing PAC Fre-Heater (Through one circuit into another) PAC HEAT RECOVERY WATER HEATER Page 23...
  • Page 25  Inlet and outlet stubs are copper tube for Freon applications and stainless steel male pipe thread for ammonia applications. The sizes of refrigeration connections for various PAC Heat Recovery Water Heater are shown in Table 1.  On runs 8 meters or less, refrigeration lines to and from the Heat Recovery Water Heater should be the same size as the compressor discharge line.
  • Page 26 If they are, particular care must be taken to avoid oil traps and excessive pressure drop in the line.  The refrigeration lines going to and From PAC Heat Recovery Water Heater could reach temperatures of 150 Celsius degree. The refrigeration lines must be insulated to prevent a burn hazard for personal injury or combustible substances.
  • Page 27  Table 1 for the per circuit condensing unit capacity range of the various PAC Heat Recovery Water Heater units. To assure proper condensing unit operation, stay within the capacity range specified.

  • Page 28: Refrigerant Charge

    Heater becomes warm. Test Run Turn on the water supply and fill the Model PAC Heat Recovery Water Heater with water. Unsure that all water 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.
  • Page 29 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 Connections for Single Refrigeration Unit and Single-Circuit Piping. PAC HEAT RECOVERY WATER HEATER Page 28...
  • Page 30 INSTALLATION AND OPERATION MANUAL Figure 10 : Typical Dual Refrigeration Unit Piping. Figure 11 : Fre-Heater Location with Hot Gas Defrost Valve, Oil Separator, and/or Discharge Muffler in System. PAC HEAT RECOVERY WATER HEATER Page 29...

  • Page 31: Maintenance

    INSTALLATION AND OPERATION MANUAL 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.
  • Page 32 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 Recovery Water Heater setting have water in but now flow out. PAC HEAT RECOVERY WATER HEATER...
  • Page 33 INSTALLATION AND OPERATION MANUAL 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 out from the Heat Recovery Water Heater PAC HEAT RECOVERY WATER HEATER...