Allied 4AC13 Installation And Start-Up Instructions Manual Download Page 2

Page 2 of 9

507043-03

Issue  1337

These instructions and warranty are to be given to the 

owner or prominently displayed near the indoor air 

handler unit.

NOTE TO INSTALLING DEALER

This product and/or the indoor unit it is matched with 

may contain fiberglass wool.

Disturbing the insulation during installation, mainte-

nance, or repair will expose you to fiberglass wool dust. 

Breathing this may cause lung cancer. (Fiberglass wool 

is known to the State of California to cause cancer.)

Fiberglass wool may also cause respiratory, skin, and 

eye irritation.

To reduce exposure to this substance or for further in-

formation, consult material safety data sheets available 

from your distributor.

  WARNING

Before installing, modifying, or servicing system, main 

electrical disconnect switch must be in the OFF position. 

There may be more than 1 disconnect switch. Lock out 

and tag switch with a suitable warning label. Electrical 

shock can cause personal injury or death.

  WARNING

Safety Precautions

Follow all safety codes. Wear safety glasses and work 

gloves. Use quenching cloth for brazing operations. Have 

fire  extinguisher  available.  Read  these  instructions  thor

-

oughly and follow all warning or cautions attached to the unit. 

 

1. Always wear proper personal protection equipment. 

 

2.  Always disconnect electrical power before removing panel 

or servicing equipment.

3. Keep hands and clothing away from moving parts.

4.  Handle refrigerant with caution, refer to proper MSDS 

from refrigerant supplier.

5. Use care when lifting, avoid contact with sharp edges.

UNIT LOCATION & INSTALLATION

NOTE

:  In some cases noise in the living area has been 

traced to gas pulsations from improper installation 

of equipment.

1.  Locate unit away from windows, patios, decks, etc. 

where unit operation sounds may disturb customer.

2.  Ensure that vapor and liquid tube diameters are  

appropriate to capacity of unit.

3.  Run refigerant tubes as directly as possible by avoiding 

unecessary turns and bends.

4.  Leave some slack between structure and unit to absorb 

vibration.

5.  When passing refrigerant tubes through the wall, seal 

opening with RTV or other silicon-based caulk.

6.  Avoid direct tubing contact with water pipes, duct work, 

floor joists, wall studs, floors, walls, and any structure.

7.  Do not suspend refrigerant tubing from joists and studs 

with a rigid wire or strap which comes in direct contact 

with tubing.

8.  Ensure that tubing insulation is pliable and completely 

surrounds suction line.

  When outdoor unit is connected to factory-approved 

indoor unit, outdoor unit contains system refrigerant 

charge for operation with indoor unit of the same size 

when connected by 15 ft. of field-supplied tubing. For 

proper unit operation, check refrigerant charge using 

charging information located on control box cover.

IMPORTANT

:  Maximum liquid-line size is 3/8 in. O.D. for 

all residental applications including long 

lines.

OUTDOOR SECTION

  Zoning ordinances may govern the minimum distance 

the condensing unit can be installed from the property 

line.

Install on a Solid, Level Mounting Pad

  The outdoor section is to be installed on a solid 

foundation. This foundation should extend a minimum of 

2” (inches) beyond the sides of the outdoor section. To 

reduce the possibility of noise transmission, the  

foundation slab should NOT be in contact with or be an 

integral part of the building foundation.

Summary of Contents for 4AC13

Page 1: ...SI C1 1993 or current edition and Canadian Electrical Code Part 1 CSA WARNING These instructions are intended as a general guide and do not supersede national state or local codes in any way These instructions must be left with the property owner NOTE Safety Precautions 2 Unit Location Installation 2 Rooftop Installation Recommendations 3 Indoor Coil Piston Selection 3 Refrigeration Line Sets 3 In...

Page 2: ... In some cases noise in the living area has been traced to gas pulsations from improper installation of equipment 1 Locate unit away from windows patios decks etc where unit operation sounds may disturb customer 2 Ensure that vapor and liquid tube diameters are appropriate to capacity of unit 3 Run refigerant tubes as directly as possible by avoiding unecessary turns and bends 4 Leave some slack b...

Page 3: ... On brick concrete blocks or unstable surfaces Near clothes dryer exhaust vents Near sleeping area or near windows Under eaves where water snow or ice can fall directly on the unit With clearance less than 2 ft from a second uni With clearance less than 4 ft on top of unit Indoor Coil Piston Selection The outdoor section must be matched to a factory approved indoor section It is mandatory that the...

Page 4: ... for leaks after brazing and before evacuation The recommended procedure is to apply a trace amount of vapor refrigerant approximately two ounces or 3 psig into the line set and indoor coil then pressurize with 150 psig of dry nitrogen Use a refrigerant leak detector to check all joints The system may also be checked for leaks using a halide torch or pressure and soapy solution After completion of...

Page 5: ... wire to ground connection in control box for safety Connect power wiring to contactor High voltage power connections to 3 phase models is made to Pig Tail leads with field supplied splice connectors Contol Wiring The control voltage is 24 VAC NEC Class I insulated 18 AWG is required for control wiring For lengths longer than 150 feet contact your local distributor for technical service Ensure the...

Page 6: ...its with Indoor TXV Units installed with cooling mode TXV require charging with the subcooling method 1 Operate unit a minimum of 10 minutes before checking charge 2 Measure liquid service valve pressure by attaching an accurate gage to service port Determine saturation temp from T P chart 3 Measure liquid line temperature by attaching an accurate thermistor type or electronic thermometer to liqui...

Page 7: ...507043 03 Page 7 of 9 Issue 1337 534773W A C SINGLE PHASE WIRING DIAGRAM Single speed condenser fan ...

Page 8: ...Page 8 of 9 507043 03 Issue 1337 A C SINGLE PHASE WIRING DIAGRAM Multi speed condenser fan 537511 01 ...

Page 9: ...rees can be drawn into coils by movement of the air Clogged condenser coils will lower the efficiency of your unit and cause damage to the condenser Periodically debris should be brushed from the condenser coils SHARP OBJECT HAZARD WARNING Condenser coils have sharp edges Wear adequate body protection on body extremities e g gloves FAILURE TO FOLLOW THIS WARNING COULD RESULT IN BODILY INJURY Use a...

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