PAC PAU User manual

INSTALLATION AND OPERATION MANUAL
PAC HEAT RECOVERY WATER HEATER Page 1
(PRODUCT INTRODUCTION )
Principle of Working
PAC Heat Recovery Water Heater
PAC Heat Recovery Water Heater are produce water heater from recover heat
removed by refrigeration or air conditioning as follows:
1. Cutting circuit of air conditioning at discharge refrigerant which out from
compressor.
2. The temperature from refrigerant will transfer heat to the heat exchanger in the
tank and make the lower temperature of water in the tank higher (Maximum higher
temperature is 60 C)
3. After heat Exchanged, 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 the air conditioning system to utilize that heat for heating water. It is a heat recovery
system which heats and store hot water all in one unit. 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. It is not intended to and should not be used totally replace the
normal air-or-water-cooled condenser.

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PAU model PAS model
Figure 1 : PAC Heat Recovery Water heater PAU and PAS Model.
PAC Heat Recovery Water Heater of all models can operate in normal pressure 100
PSI, As the refrigerant integrated solution for creating heat to work at normal pressure as
250-300 PSI. By testing the ability of the pressure 150 PSI for water pressure and 600 PSI
circuit solution.
In order to back up heat or in the absence of air conditioning 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 to support the
electric 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.
-PAS model are made of a spray paint steel. It should not to clean with the
cleaning equipment or liquid mixture which it damage to the surface of tank, all
for protect the corrosion.
Figure 2 : The bracket of PAU and PAS model.

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

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PAC HEAT RECOVERY WATER HEATER Page 4
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
Model
Water
Connection
Size
(Liter)
No. of
Refrig.
Circuits
(Set)
Water
Connection
size(Inch)(Male
Thread)
Refrig.
Connection
Size
(Inch)
Dimension
ØxHigh
(cm)
Weight
(Kg)
PAU-050101
PAS-050101
50
50
1
1
1/2” male thread
1/2” male thread
3/8” Flare
3/8” Flare
47x61
47x61
16
16
PAU-075101
PAS-075101
75
75
1
1
1/2” male 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
2
3/4” male thread
3/4” male thread
3/8” Flare
3/8” Flare
47x101
47x101
24
24
PAU-150151
PAS-150151
150
150
1
1
3/4” male thread
3/4” male thread
3/8” Flare
3/8” Flare
56x113
56x113
43
43
PAU-150152
PAS-150152
150
150
2
2
3/4” male thread
3/4” male thread
3/8” Flare
3/8” Flare
56x113
56x113
44
44
PAU-200151
PAS-200151
200
200
1
1
3/4” male thread
3/4” male thread
3/8” Flare
3/8” Flare
56x134
56x134
62
62
PAU-200152
PAS-200152
200
200
2
2
3/4” male thread
3/4” male thread
3/8” Flare
3/8” Flare
56x134
56x134
63
63
Table 1 : PAC Technical Specifications
Pressure Testing
General water pressure (normally) 100 PSI (6.89 Bar)

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PAC HEAT RECOVERY WATER HEATER Page 5
Maximum testing pressure 150 PSI (10.34Bar)
Maximum testing refrigerant 600 PSI (41.37 Bar)
Product Content
1. PAC Heat Recovery Water Heater the components as below.
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.
-Middle : The middle is a special thermal insulation, Poly Urethane. Prolong to
keep the heating and strong.
-Inner : The inner pressure tank is made of stainless steel 316L and seamless
Heat exchanger. Resistant to high corrosion, heat and pressure with clean and
safe.
Heat Exchanger equipment. Made of seamless stainless steel 316L Resistant to
high corrosion and prevent 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 prevent to mixing the cold water, hot water production.
Hot water outlet : Size 1/2” use for 50L and 75L tank and the size ¾” use for
100L and 150L tank. The inlet must to connected to a water tank at the top of
efficient storage of heat and hot water temperatures up.
Magnesium Anode (Mg. Anode)Size ¾” use for sediment trap and scale to
reduce contamination of the water, make a water safer and prevent the equipment
within the tank for more safety.
Electric Heater : It on the button when placing a vertical cylinder. As an option
in case that does not turn on air conditioners for a long time.
Components within the tank made of Stainless Steel 316L it is do not all react the
same positive impact on the cleanliness of hot water and tank. Long-term need to install
control equipment, temperature and pressure that comes with the tank. To prevent

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PAC HEAT RECOVERY WATER HEATER Page 6
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. Size 1/2” for 50L, 75L and Size 3/4”
for model 100L, 150L, 200L
- Flexible Pipe Stainless steel 35 cm. + Flare + Insulation 2 set. Size 1/2” for 50L,
75L and Size 3/4” for model 100L, 150L, 200L.
- Spiral Tap 1 roll.
Figure 5 : The connection for installment of PAC Heat Recovery Water Heater.

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3. User Manual and Warranty card

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PAC HEAT RECOVERY WATER HEATER Page 8
CONNECTING LIST
Pattern 1 : For Model PAS-050101 and PAU-050101.

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Pattern 2 : For Model PAS-075101 and PAU-075101.

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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.

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Pattern 5 : For Model PAS-200151, PAS-200152 and PAU-200151, PAU-200152.

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Socket for Magnesium Anode 3/4”
DRAWING OF PRODUCTS
Pattern 1 : Size and Main equipment for PAS-050101 and PAU-050101 model.

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Pattern 2 : Size and Main equipment for PAS-075101 and PAU-075101 model.

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Refrigerant Inlet –Outlet of coil
Second coil for 2 coil model.
Pattern 3 : Size and Main equipment for PAS-100101 and PAU-100102 model.

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Refrigerant Inlet –Outlet of coil
Second coil for 2 coil model.
Pattern 4 : Size and Main equipment for PAS-150151 and PAU-150152 model.

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Refrigerant Inlet –Outlet of coil
Second coil for 2 coil model.
Pattern 5 : Size and Main equipment for PAS-200151 and PAU-200152 model.

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CAUTION
Before installation, must to read the caution carefully for safety.
Please contract the dealer if product had a problem when you are installing.
Warning : Means, Caution in the air conditioning and associated equipment to be
notice for avoid a dangerous to the user or workers.
Caution : Means, Precautions that should be observed to avoid the danger that will
happen to the machine.
After installation should be explain “Instructions for Safety” How to use and care to
the product to customer and need to test run the 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 in the manual and use the right tools for work.
Installation should be follow the instructions in the manual to reduce the risk of
earthqauke or strom. Installed with the wrong method it might be the product falling to the
ground and damage.
Should to install a product with a strong structure which it can get the weight.
Should not to remove the product after installed.
Before installation or change location
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.

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Suction refrigerant to keep out of the system out, because when the connection pipe
Refrigerant may cause a serious explosion. Or when refrigerant in contact with fire it will
burn which causes toxic gases.
Ware groves and goggles whenever working. Since refrigerants are generally very low
boiling point. If touched to the skin or eyes, it was time to get that serious.
Keep the container of refrigerant in the indoor temperature does not exceeds 52 degree
Celsius. Because the refrigerant has a 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, and may cause the
damage to the ceiling, furniture or other property.
Betel nut is tightened all the selected points with a wrench mod, if the tightening nut may
be too premature to crack.
Caution Before Testing System
Before start to testing the air condition system, need to checking all the valves and be
sure that it ready to work.
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.

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INSTALLMENT
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.
PAC Heat Recovery Water Heater PAS model should be located as near as
practical to the refrigeration unit. Careful planning of the Pac tank location and plumbing
can reduce installation costs 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 the size that most BTU.
1.2 Choose a location to install the machine near the condensing unit as much as
possible by taking into account the length of the tube-term solution that does not exceed
more than 8 meters, use the solution pipe as the same size as a solution pipe which out
from the compressor.
Should be extened pipe solution if you need to pipe more than 8 meters. If you have
any question, please contact manufacturer.
In normally the total length of solution pipe should not exceed more than 16 meters.
X< 8 m.