Allied Lennox 4AC16LT Series Panduan Petunjuk Instalasi - Halaman 2

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Installation

General

Read this entire instruction manual, as well as the

instructions supplied in separate equipment, before

starting the installation. Observe and follow all warnings,

cautions, instructional labels, and tags. Failure to comply

with these instructions could result in an unsafe condition

and/or premature component failure.

These instructions are intended as a general guide only

for use by qualified personnel and do not supersede any

national or local codes in any way. The installation must

comply with all provincial, state, and local codes as well as

the National Electrical Code (U.S.) or Canadian Electrical

Code (Canada). Compliance should be determined prior

to installation.

4AC16LT condensing units use R410A which is an ozone-

friendly HFC refrigerant. The unit must be installed with

a matching indoor coil and line set. 4AC16LT units are

designed for use in expansion valve (TXV) systems only.

A filter drier approved for use with R410A is installed in

the unit.

NOTE: This product has been designed and manufactured

to meet ENERGY STAR criteria for energy efficiency when

matched with appropriate coil components. However,

proper refrigerant charge and proper air flow are critical

to achieve rated capacity and efficiency. Installation of

this product should follow the manufacturer's refrigerant

charging and air flow instructions. Failure to confirm

proper charge and airflow may reduce energy efficiency

and shorten equipment life.

When servicing or repairing HVAC components, ensure

the fasteners are appropriately tightened. Table 1 shows

torque values for fasteners.

Fastener

Stem Caps

Service Port Caps

Sheet Metal Screws

#8 Machine Screws

#10 Machine Screws

Compressor Bolts

Table 1. Torque Table

Inspection of Shipment

Upon receipt of equipment, carefully inspect it for possible

shipping damage. If damage is found, it should be noted

on the carrier's freight bill. Take special care to examine

the unit inside the carton if the carton is damaged. Any

concealed damage discovered should be reported to the

last carrier immediately, preferably in writing, and should

Page 2 of 20

Torque

8 ft. lbs.

16 in. lbs.

28 in. lbs.

90 in. lbs.

Issue 1827

include a request for inspection by the carrier's agent. If

any damages are discovered and reported to the carrier

DO NOT INSTALL THE UNIT, as claim may be denied.

Check the unit rating plate to confirm specifications are as

ordered.

Location of Unit

Refer to Figure 1 for installation clearances.

* A service clearance of 30" must be maintained on one of the

sides adjacent to the control box. Clearance to one of the other

three sides must be 36". Clearance to one of the remaining two

sides may be 12" and the final side may be 6".

A clearance of 24" must be maintained between units.

48" clearance required on top of unit. Maximum soffit overhang is

36".

Figure 1. Installation Clearances

Slab Mounting

When installing a unit at grade level, install on slab high

enough above grade so that water from higher ground will

not collect around the unit (Figure 2).

Roof Mounting

Install unit at a minimum of 4" above surface of the roof.

Care must be taken to ensure weight of unit is properly

distributed over roof joists and rafters. Either redwood or

steel supports are recommended.

Figure 2. Slab Mounting

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