Allied 2HP13/14 Installations-/Inbetriebnahmeanleitung/Handbuch für Hausbesitzer - Seite 3

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Elevate Unit

Accum ulation of water and ice in base pan m ay

cause equipm ent dam age.

Elevate unit per local clim ate and code requirem ents to

provide clearance above estim ated snowfall level and

ensure adequate drainage of unit.

areas

where

prolonged

encountered.

If conditions or local codes require the unit be attached

to pad or m ounting fram e, tie down bolts should be used

and fastened through knockouts provided in unit base pan.

Roof Top Installations

Mount on level platform or fram e 6 inches above roof

surface. Place unit above a load-bearing wall and isolate

unit and tubing set from structure. Arrange supporting

m em bers to adequately support unit and m inim ize

transm ission of vibration to building. Ensure roof structure

and anchoring m ethod is adequate for location. Consult

local codes governing rooftop applications.

Roof m ounted units exposed to winds above 5 m ph

m ay require wind baffles to achieve adequate defrost. A

sheet m etal baffle should be spaced 6-1/2" from the fall of

the coil. The height should cover the face of the coil and

the length should be 6" from the access panel.

NOTE: Unit m ust be level to within ± 2 (± 3/8 in./ft) per

com pressor m anufacturer specifications.

Clearance Requirements

W hen installing, allow sufficient space for airflow

clearance, wiring, refrigerant piping, and service.

proper airflow, quiet operation and m axim um efficiency.

Position so water, snow, or ice from roof or eaves cannot

fall directly on unit.

506162-02

Use snow stand in

freezing

tem peratures

DO LOCATE THE UNIT:

W ith proper clearances on sides and top of unit

On a solid, level foundation or pad

To m inim ize refrigerant line lengths

DO NOT LOCATE THE UNIT:

On brick, concrete blocks or unstable surfaces

Near clothes dryer exhaust vents

are

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 unit

with clearance less than 4 ft. on top of unit

Operating Ambient

The m inim um outdoor operating am bient in cooling

m ode is 55 F, and the m axim um outdoor operating

am bient in cooling m ode is 125 F. The m axim um outdoor

operating am bient in heating m ode is 66 F.

Indoor Coil Piston Selection

The outdoor heat pum p section m ust be m atched to a

factory approved indoor section. It is m andatory that the

installer ensure that the correct piston is installed in the

indoor section. If necessary rem ove the existing piston and

replace it with the correct piston

instructions for details of changing the piston.

your distributor for accessory piston kits.

13 SEER Heat Pum p Indoor Piston Sizes

Unit Size

For

The evaporator coil may use an expansion valve (TXV) in place of piston.

NOTE: If a TXV is installed a hard start kit is required on

all m odels with reciprocating com pressors.

sheet for proper kit selection.

14 SEER Heat Pump M odels

All 14 SEER heat pum p m odels are only rated with TXV on

the indoor side.

14 SEER Heat Pump Indoor TXV

Unit Size

18 thru 36

42 thru 48

Refrigeration Line Sets

Use only refrigerant grade copper tubes.

system s m ay be installed with up to 50 feet of line set (no

m ore than 20 feet vertical) without special consideration

(see long line set guidelines).

Issue 0847

Indoor (Cooling) Piston Size

2HP13

.055

.063

.068

.076

.082

.098

See

indoor unit

Contact

4HP13

.051

.055

.059

.070

.082

See spec

TXV Kit

TXV3

TXV5

Split

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