Lennox HS24-311 User Manual

SERVICE
HS24
UNIT
INFORMATION
Page 1
1992 Lennox Industries Inc.
Corp. 9201ĆL1 Litho U.S.A.
HS24 SERIES UNITS
The HS24 is a highĆefficiency residential splitĆsystem conĆ
densing unit. Extra large condensing coil, coil circuiting
and high condenser air volume result in a high SEER rating
(minimum of 10.0). The series is designed for use with an
expansion valve or RFCII system in the indoor unit.
All compressors are hermetically sealed for troubleĆfree
operation and long service life. Compressor components
are spring mounted within the sealed housing. The comĆ
pressor is installed in the unit on resilient rubber mounts to
assure quiet, vibrationĆfree operation. A builtĆin protection
device assures protection from excessive current and temĆ
peratures.
HS24-510 through HS24-650 models are furnished with
crankcase heaters as standard equipment to assure proper
compressor lubrication at all times. The heater is temperaĆ
tureĆactuated and operates only when required.
Several models are available in sizes ranging from 1
through 5 tons.
This manual is divided into sections which discuss the maĆ
jor components, refrigerant system, charging procedure,
maintenance and operation sequence.
All specifications in this manual are subject to change.
SPECIFICATIONS
Model No. HS24Ć141 HS24Ć211 HS24Ć261 HS24Ć311
N t f ( ft )
12 60
12 60
12 60
14 70
Net face area (sq. ft.) 12.60 12.60 12.60 14.70
Condenser
Coil
Tube diameter (in.) & no. of rows 3/8 Ċ 1 3/8 Ċ 1 3/8 Ċ 1 3/8 Ċ 1
Coil
Fins per inch 20 20 20 20
Diameter (in.) & no. of blades 20 Ċ 3 20 Ċ 3 20 Ċ 3 20 Ċ 3
Condenser Motor hp 1/6 1/6 1/6 1/6
Fan Cfm 2500 2500 2500 2700
Rpm 850 850 850 850
Watts 200 200 200 205
*Refrigerant Ċ 22 charge furnished 4 lbs. 5 oz. 4 lbs. 10 oz. 5 lbs. 7 oz. 5 lbs. 12 oz.
Liquid line (o.d. in.) connection (sweat) **3/8 ***3/8 ***3/8 3/8
Suction line (o.d. in.) connection (sweat) 1/2 5/8 5/8 3/4
Shipping weight (lbs.) 1 package 121 153 154 168
*Refrigerant charge sufficient for 25 ft. length of refrigerant lines.
** 3/8" x 1/4" reducer furnished to adapt to 1/4 field fabricated line set.
*** 3/8" x 5/16" reducer furnished to adapt unit to 5/16" line set.

Lennox HS24-311 Specifications

General

Brand	Lennox
Model	HS24-311
Category	Heat Pump
Language	English

Summary

SPECIFICATIONS

1 - Rotary Compressor (-141 Units Only)

3 - Reciprocating Compressor (all other units)

III - REFRIGERANT SYSTEM

B - Service Valves

1 - Liquid Line Service Valve

Explains the full service liquid line valve, its operation, and service port procedures.

2 - Suction Line Service Valve

IV - CHARGING

A - Leak Testing

Outlines the procedure for leak testing the system using dry nitrogen and a gauge manifold.

B - Evacuating the System

Details the steps for evacuating the refrigeration system to the required vacuum level.

C - Charging

Explains the recommended method for charging the unit with refrigerant by weighing.

V - Maintenance

XII - WIRING DIAGRAMS AND SEQUENCE OF OPERATION

SINGLE PHASE OPERATING SEQUENCE

Details the sequence of operation for single phase HS24 units, including cooling demand and control signals.

OPERATING SEQUENCE

Explains the operational sequence for HS24 (P Voltage) units based on thermostat input.

THREE PHASE OPERATING SEQUENCE

OPERATING SEQUENCE