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Service Literature
The HS29 is a residential split-system condensing unit.
Condensing coil size, circuiting and air volume result in a
minimum SEER rating of 10.0. The series is designed for
use with an expansion valve or RFCIV system in the in-
door unit. However, the HS29−651 and −060 use only the
TXV system.
The HS29−141 and −012 utilizes a rotary compressor. Other
HS29 units (−018, −024−2 and −211 through −653) utilize a recip-
rocating compressor. All compressors are hermetically sealed
for trouble-free operation and long service life. Compressor
components are spring-mounted within the sealed housing.
The compressor is installed in the unit on resilient rubber
mounts to assure quiet, vibration-free operation. A built-in
protection device assures protection from excessive
current and temperatures.
HS29−460 through HS29−650 models are furnished with
crankcase heaters to assure proper compressor lubrica-
tion at all times. The heater is temperature-actuated and
operates only when required. HS29−024−3 and HS29−030
through −060 units utilize a scroll compressor. The scroll oper-
ates like a standard compressor but it is unique in the way it
compresses refrigerant.
Several models are available in sizes ranging from 1 through 5
tons.
WARNING
Refrigerant can be harmful if it is inhaled. Refrigerant
must be used and recovered responsibly.
Failure to follow this warning may result in personal
injury or death.
IMPORTANT
Improper installation, adjustment, alteration, service
or maintenance can cause property damage, person-
al injury or loss of life. Installation and service must
be performed by a qualified installer or service
agency.
HS29 SERIES UNITS
This manual is divided into sections which discuss the
major components, refrigerant system, charging proce-
dure, maintenance and operation sequence.
All specifications in this manual are subject to change.
Page 1
TABLE OF CONTENTS
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©1998 Lennox Industries Inc.
HS29
Corp. 9802−L3
Revised 04−2004
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Related Manuals for Lennox HS29-211
Summary of Contents for Lennox HS29-211
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Page 1: Table Of Contents
....... . be performed by a qualified installer or service agency. VI Wiring Diagrams and Operation Sequence ..Page 1 ©1998 Lennox Industries Inc. -
Page 2: Specifications
SPECIFICATIONS Model No. HS29-141 HS29-211 HS29-261 HS29-311 Outer coil 7.56 (0.70) 11.33 (1.05) 11.33 (1.05) 13.22 (1.23) N t f Net face area - sq. ft. (m ft ( Inner coil - - - - - - - - - - - -... -
Page 3: Electrical Data
Shipping weight lbs. (kg) 1 package 145 (66) 158 (72) 191 (87) 207 (94) *Refrigerant charge sufficient for 15 ft. (4.5 m) length of refrigerant lines. ELECTRICAL DATA Model No. HS29-141 HS29-211 HS29-261 HS29-311 HS29-411 HS29-413 208/230v 208/230v 208/230v 208/230v 208/230v... - Page 4 ELECTRICAL DATA Model No. HS29-461 HS29-463 HS29-511 HS29-513 208/230v 208/230v 460v 208/230v 208/230v 460v 575v Line voltage data 60 hz Rated load amps 17.5 12.8 23.4 14.0 Compressor Power factor Locked rotor amps 92.0 87.0 44.0 110.0 91.0 46.0 37.0 Full load amps 0.55 0.90...
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Page 5: I Unit Information
All major components (indoor blower/coil) must be matched ac- former is located inside the unit control box (see figure 1). The cording to Lennox recommendations for the compressor to be transformer is rated at 3.4 VA with a 575 volt primary and a 460 covered under warranty. - Page 6 HS29 SINGLE-PHASE UNIT CONTROL BOX HS29 SINGLE−PHASE UNIT CONTROL BOX WITH NON−SCROLL COMPRESSOR WITH SCROLL COMPRESSOR START DUAL CAPACITOR DUAL CAPACITOR CAPACITOR (C12) (C12) (C7) COMPRESSOR COMPRESSOR CONTACTOR CONTACTOR (K1) (K1) POTENTIAL RELAY (K31) GROUNDING GROUNDING FIGURE 2 HS29 THREE-PHASE UNIT CONTROL BOX HS29 UNIT COMPONENTS CAPACITOR (C1) OUTDOOR...
- Page 7 1 − Crankcase Heater SCROLL COMPRESSOR A crankcase heater is used on all HS29−460 through DISCHARGE HS29−650 models and an option on all others. Some heaters will be insertion−type and self−regulating while others will be the band type. The heater is temperature- actuated and operates only when required.
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Page 8: Refrigerant System
HS29−024−2 from the condensing unit (sweat connections) to the indoor L15-21-50 evaporator coil (flare or sweat connections). Use Lennox L10 (flare) or L15 (sweat, non−flare) series line sets as L15-31-20 shown in table 1 or table 2 or use field−fabricated refrigerant... - Page 9 B − Service Valves To Close Liquid or Suction Line Service Valve: 1 − Remove stem cap with an adjustable wrench. The liquid and suction line service valves (figures 8 and 9) and 2 − Using service wrench and hex head extension (3/16" for liq- gauge ports are accessible from outside the unit.
- Page 10 SUCTION LINE SERVICE VALVE (VALVE OPEN) LIQUID LINE SERVICE VALVE (VALVE OPEN) INSERT HEX INSERT HEX WRENCH HERE STEM CAP WRENCH HERE STEM CAP INLET FROM INDOOR COIL SERVICE PORT INLET FROM SCHRADER COMPRESSOR VALVE OUTLET TO COMPRESSOR SERVICE SERVICE PORT OUTLET TO PORT INDOOR COIL...
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Page 11: Charging
15 ft. (4.5 m) subtract this amount. door coil and refrigerant lines. Units are designed for line sets up to 50 ft (15.2 m). Con- sult Lennox Refrigerant Piping Manual for line sets over IMPORTANT 50 ft (15.2 m). - Page 12 D − Charging TABLE 4 If the system is completely void of refrigerant, the recom- Approach Temperature HS29 MODEL NO. Liquid Line − Outdoor Ambient _F (_C) mended and most accurate method of charging is to weigh the refrigerant into the unit according to the total amount shown on −141, −012 7 (3.6) the unit nameplate.
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Page 13: Maintenance
V − MAINTENANCE C − Indoor Unit 1 − Clean or change filters. At the beginning of each heating or cooling season, the sys- tem should be cleaned as follows: 2 − Bearings are pre-lubricated and need no further oil- ing. - Page 14 TABLE 7 NORMAL OPERATING PRESSURES* HS29−024−3 HS29−012 HS29−018 HS29−030 HS29−036 HS29−042 HS29−048 HS29−060 HS29−060−3 (HS29−024−2) OUTDOOR ENTERING AIR ENTERING AIR SUC. SUC. SUC. SUC. LIQ. SUC. SUC. SUC. SUC. SUC. LIQ. TEMPERATURE LIQ. LIQ. LIQ. LIQ. LIQ. +1 0 LIQ. LIQ.
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Page 15: Wiring Diagrams And Operation Sequence
VI − WIRING DIAGRAMS AND SEQUENCE OF OPERATION HS29−1 SINGLE-PHASE OPERATING SEQUENCE RECIPROCATING OR ROTARY COMPRESSOR) a−HS29 P" Voltage Operation Sequence This is the sequence of operation for HS29−461/511/651 and HS29−012/018/024 P" voltage units. The HS29−141/211/261/311/411/681 P" voltage units are similar; however, these units are not equipped with the hard start kit. - Page 16 HS29−2 & −3 SINGLE-PHASE OPERATING SEQUENCE RECIPROCATING OR ROTARY COMPRESSOR) NOTE− The thermostat used may be electromechanical or electronic. NOTE− Transformer in indoor unit supplies power (24 VAC) to the thermostat and outdoor unit controls. COOLING: 2Cooling demand initiates at Y1 in the thermostat. 324VAC from indoor unit energizes compressor contactor K1.
- Page 17 HS29 THREE-PHASE OPERATING SEQUENCE (ALL COMPRESSORS) a−HS29 Y", G", and J" Voltage Operation Sequence This is the sequence of operation for HS29 Y" voltage units. The HS29 G"voltage sequence is the same; however the J" voltage units have an outdoor fan transformer. The sequence is outlined by numbered steps which correspond to circled numbers on the adjacent diagram.
- Page 18 HS29−1 SINGLE−PHASE OPERATING SEQUENCE (SCROLL COMPRESSORS) a−HS29 P" Voltage Operation Sequence This is the sequence of operation for HS29−030/036/042/048/060 P" voltage units. The sequence is outlined by numbered steps which correspond to circled numbers on the adjacent diagram. NOTE− The thermostat used may be electromechanical or electronic. NOTE−...
- Page 19 HS29−2 & −3 SINGLE−PHASE OPERATING SEQUENCE (SCROLL COMPRESSORS) NOTE− The thermostat used may be electromechanical or electronic. NOTE− Transformer in indoor unit supplies power (24 VAC) to the thermostat and outdoor unit controls. COOLING: 2Cooling demand initiates at Y1 in the thermostat. 324VAC from indoor unit energizes compressor contactor K1.
- Page 20 SERVICE NOTES Page 20...