Allied 2HP13/14 Instrucciones de instalación/puesta en marcha/Manual de información al propietario - Página 5

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The valves should be kept in the "front seated"

(closed) position. This will allow evacuation of the

refrigeration lines and the indoor coil, without

disturbing the factory charge in the outdoor unit.

the

vacuum

instructions. Allow the pum p to operate until the

system has been evacuated down to 300 m icrons.

Allow the pum p to continue running for an additional

15 m inutes.

Turn OFF the pum p and leave the

connections secured to the two (2) service valves.

After 5 m inutes, if the system fails to hold 500

m icrons or less, check all connections for tight fit and

repeat the evacuation procedure.

Isolate the vacuum pum p from the system by closing

the shutoff valves on the gauge-set. Disconnect the

vacuum pum p.

Opening Service Valves

After evacuation of the connecting lines, rem ove the

service valve cap and fully insert the hex wrench into the

stem . A back-up wrench is required on the valve body to

open the valve stem . Back-out counterclockwise until the

valve stem just touches the coined edge.

W rench sizes:

3/8 service valve: 3/16" Hex wrench

3/4 service valve: 5/16" Hex wrench

7/8 service valve: 5/16" Hex wrench

Replace service valve cap and torque to 8-11 ft-lb on 3/8"

valves; 12-15 ft-lb on 3/4" valves; 15-20 ft-lb on 7/8" valves.

Use backup wrench on valve body when torqueing valve

cap.

Install Electrical Accessories

Refer to the instructions packaged with the accessories.

Electrical Connections

. . . .

ELECTRICAL SHOCK HAZARD!

Turn OFF electric power before connecting unit,

performing any maintenance or removing

panels or doors. More than one disconnect

may be required to turn off all power.

FAILURE TO DO SO COULD RESULT IN BODILY

INJURY OR DEATH.

Be sure to check all local codes to determ ine that the unit

is installed accordance with local requirem ents. Consult

the National Electric Code for wire size requirem ents. Use

60 C wire or higher. Always provide ground connections

to the outdoor unit. Power supply m ust agree with rating

on unit nam eplate.

506162-02

pum p

m anufacturer's

Issue 0847

Provide line voltage power supply to unit from a properly

sized disconnect switch. Route power and ground wires

from disconnect switch to unit. Line voltage connections

are m ade at the line side of the contactor in the control box

of the outdoor unit. Follow the appropriate wiring diagram

attached to inside of the access panel.

Proper circuit protection recom m endations are indicated

on Unit Rating Plate. Tim e delay fuses are required to

prevent blowing due to starting current (the current in rush

when equipm ent starts is referred to as the Locked Rotor

Am ps or (LRA). A fuse of this kind properly sized will give

m axim um equipm ent protection.

Use copper wire only between disconnect switch and

unit.

Rem ove access panel to gain access to unit wiring.

Extend wires from disconnect through power wiring hole

provided and into unit control box.

required for the swing out control box feature.

The unit cabinet m ust have an uninterrupted or

unbroken ground to m inim ize personal injury if an

electrical fault should occur. The ground m ay consist

of electrical wire or m etal conduit when installed in

accordance with existing electrical codes. Failure to

follow this warning can result in an electric shock,

fire, or death.

Connect ground wire to ground connection in control box

for safety. Connect power wiring to contactor.

High voltage power connections to 3-phase m odels is

m ade to "Pig Tail" leads with field supplied splice

connectors.

Control W iring

The control voltage is 24 Vac. NEC Class I insulated 18

AW G is required for control wiring. For lengths longer than

150 feet, contact your local distributor for technical service.

Ensure the room therm ostat is properly installed per

instructions shipped with room therm ostat. Generally the

therm ostat should not be exposed to sunlight, drafts or

vibration and should not be m ounted on exterior walls.

Low voltage control wire connections should be m ade to

the screw connection term inal board m ounted on the

defrost control as shown. All low voltage control wiring

m ust be separated from incom ing power leads.

Flexible conduit is

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