PAC AL Manuale utente
INSTALLATION AND OPERATION MANUAL
PAC HEAT RECOVERY WATER HEATER
INTRODUCTION
Description of the System
The Mueller PAC Fre-Heater Model AL
is designed to recover heat
removed by refrigeration or air conditioning systems and to utilize that
heat for heating water. It is a heat recovery system which heats and
stores hot water all in one unit. It is easily connected to an existing
refrigeration unit, either air or water cooled. PAC Fre-Heater is a de-
superheater which removes most or all of the latent heat of the hot
discharged 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 to totally replace the normal air- or
water-cooled condenser.
PAC water tanks are rated for 150 psi working pressure and refrigeration
circuits are rated for a maximum working pressure of 400 psi.
PAC have a placement for supporting heater by the placement of this
element located in the under of the tank. The placement of this element
allows the maximum utilization of the refrigerant heat recovery system
and minimizes the usage of electricity in directly heating the water.
The outer jacket of all PAC Fre-Heaters is highly corrosion-resistant
stainless steel and will remain bright and rust-free with a minimum
of care. Do not use abrasive cleaning materials or compounds on the
outer jacket as they will scratch the surface. After using any cleaning
compounds always rinse with clear water. In coastal areas where the
air contains a high salt content, the bright appearance of the Fre-Heater
can be maintained by rubbing it with oil or a light grease as soon as it is
installed.
Capacity
PAC Fre-Heater is 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.
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INSTALLATION AND OPERATION MANUAL
PAC HEAT RECOVERY WATER HEATER
Table 1 - PAC Technical Specifications
Model
Water
Connection
Sizes
No. of
Refrig.
Circuits
Water
Connection
Sizes
(inch)
Refrig.
Connection
Sizes
(inch)
Dimension
(cm..) Weight
(kilogram)
AL-0252P 25 1 1/2”
THREAD 3/8” FLARE 38x44 12
AL-0502P 50 1 1/2”
THREAD 3/8” FLARE 45x53 16
AL-0502PS 50 2 1/2”
THREAD 3/8” FLARE 45x53 16
AL-0752P 75 1 1/2”
THREAD 3/8” FLARE 45x77 21
AL-0752PS 75 2 1/2”
THREAD 3/8” FLARE 45x77 21
AL-1002P 100 1 3/4”
THREAD 3/8” FLARE 52x79 25
AL-1002PS 100 2 3/4”
THREAD 3/8” FLARE 52x79 25
AL-1502P 150 1 3/4”
THREAD 3/8” FLARE 52x110 27
AL-1502PS 150 2 3/4”
THREAD 3/8” FLARE 52x110 27
Fre-Heater Location
The Fre-Heater should be located inside. If it is necessary to locate the Fre-
Heater outside, it must be under a cover. The Fre-Heater must be
protected from water dripping or spraying, or in any way collecting on the
top surface, as this can result in the failure of the heat exchanger. When
selecting a location for PAC Fre-Heater, the ability of that location to bear
the loaded weight of the Fre-Heater should be a prime consideration. The
loaded weights of all PAC Fre-Heaters are listed in Table 1.
PAC Fre-Heater should be located as near as practical to the refrigeration
unit(s). The Fre-Heater should not be located where cooling tower or
evaporative condenser water will be in continual direct contact with the
exterior surface. Careful planning of the Fre-Heater location and plumbing
can reduce installation costs and save time during installation and on
maintenance in the future.
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INSTALLATION AND OPERATION MANUAL
PAC HEAT RECOVERY WATER HEATER
Figure1: PAC Fre-heater Model AL-0252P
Front Side
Back Suspension
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INSTALLATION AND OPERATION MANUAL
PAC HEAT RECOVERY WATER HEATER
Figure 2 : PAC Fre-Heater Model AL-0502P, AL-0502PS
Front Side
Back Suspension
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INSTALLATION AND OPERATION MANUAL
PAC HEAT RECOVERY WATER HEATER
Figure 3 : PAC Fre-Heater Model AL-0752P, AL-0752PS
Front Side
Back Suspension
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INSTALLATION AND OPERATION MANUAL
PAC HEAT RECOVERY WATER HEATER
Figure 4 : PACFre-Heater Model AL-1002P, AL-1002PS
Front Side
Back Suspension
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INSTALLATION AND OPERATION MANUAL
PAC HEAT RECOVERY WATER HEATER
Figure 5 : PACFre-Heater Model AL-1502P, AL-1502PS
Front Side
Back Suspension
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INSTALLATION AND OPERATION MANUAL
PAC HEAT RECOVERY WATER HEATER
Figure 6 : PAC Connections ModelAL-0252P
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INSTALLATION AND OPERATION MANUAL
PAC HEAT RECOVERY WATER HEATER
Figure 7:PAC Connections Model AL-0502P
Figure 8 : PACConnections Model AL-0502PS
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