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Service Literature
The HP29 is a residential split-system heat pump. Outdoor coil
size, circuiting and air volume result in a minimum SEER rating
of 10.0. All HP29 units are designed for use with thermal
expansion valves.
Some HP29 units (−211 through −650, −018 and −024) utilize a
reciprocating compressor. These models are furnished with
crankcase heaters. The heater prevents liquid from
accumulating in the compressor. All compressors are
hermetically sealed for trouble-free operation and long service
life.
Reciprocating
spring-mounted within the sealed housing. A built-in limit
protects the compressor from excessive current and
temperatures. Other HP29 units (−030 through −060) utilize a
scroll compressor. The scroll operates like a standard
heatpump,
but is unique in the way that it compresses
refrigerant.
This manual is divided into sections which discuss major
components, refrigerant system, charging procedures,
maintenance, and operation sequence .
All specifications in this manual are subject to change.
Outdoor
Outdoor
Coil
Coil
Tube diameter
Fins per inch (m)
Diameter
Motor hp (W)
Outdoor
Outdoor
Coil
Coil
Cfm (L/s)
F
Fan
Rpm
Watts
*Refrigerant charge furnished (HCFC-22)
Liquid line
in. (mm) o.d. connection (sweat)
Vapor line
in. (mm) o.d. connection (sweat)
Shipping weight
lbs. (kg) 1 package
*Refrigerant charge sufficient for 20 ft. (6.1 m) length of refrigerant lines.
**5/16 to 3/8 reducer coupling supplied with unit.
Net face area sq ft (m
Net face area - sq. ft. (m
Outdoor
Outdoor
Coil
Tube diameter
Fins per inch (m)
Diameter
Motor hp (W)
Outdoor
Outdoor
Coil
Coil
Cfm (L/s)
Fan
F
Rpm
Watts
*Refrigerant charge furnished (HCFC-22)
Liquid line
in. (mm) o.d. connection (sweat)
Vapor line
in. (mm) o.d. connection (sweat)
Shipping weight
lbs. (kg) 1 package
*Refrigerant charge sufficient for 20 ft. (6.1 m) length of refrigerant lines.
compressor
components
Model No.
Outer coil
2
2
Net face area - sq. ft. (m
N t f
ft (
)
)
Inner coil
in. (mm) & no. of rows
in. (mm) & no. of blades
Model No.
Outer coil
2
2
)
)
Inner coil
in. (mm) & no. of rows
in. (mm) & no. of blades
Corp. 9709−L5
Revised 5−2000
HP29 SERIES UNITS
are
SPECIFICATIONS
HP29-211
11.41 (1.06)
- - - -
5/16 (7.9)
1
22 (866)
18 (457)
3
1/6 (124)
2400 (1135)
1105
180
4 lbs. 5 oz. (1.96 kg)
**3/8 to 5/16 (8)
5/8 (15.9)
152 (69)
SPECIFICATIONS
HP29-411/HP29-41
HP29-461/HP29-463
15.21 (1.41)
15.21 (1.41)
- - - -
5.44 (0.51)
5/16 (7.9)
1
5/16 (7.9)
22 (866)
18 (457)
4
18 (457)
1/6 (124)
2520 (1190)
2500 (1180)
1100
200
6 lbs. 3 oz. (2.81 kg) 7 lbs. 13 oz. (3.54 kg) 7 lbs. 1 oz. (3.20 kg)
3/8 (9.5)
3/4 (19.1)
174 (79)
Page 1
HP29-261
11.41 (1.06)
- - - -
5/16 (7.9)
1
22 (866)
18 (457)
3
1/6 (124)
2400 (1135)
1105
180
4 lbs. 4 oz. (1.92 kg)
**3/8 to 5/16 (8)
5/8 (15.9)
152 (69)
HP29-511/HP29-513
15.21 (1.41)
5.44 (0.51)
1.37
5/16 (7.9)
1.37
22 (866)
22 (866)
4
18 (457)
4
1/6 (124)
1/3 (249)
2950 (1390)
1100
1100
200
310
3/8 (9.5)
3/8 (9.5)
7/8 (22.2)
7/8 (22.2)
199 (90)
206 (93)
© 1997 Lennox Industries Inc.
HP29
HP29-311
13.31 (1.24)
- - - -
5/16 (7.9)
1
22 (866)
18 (457)
4
1/6 (124)
2500 (1180)
1100
200
4 lbs. 15 oz. (2.24 kg)
**3/8 to 5/16 (8)
3/4 (19.1)
164 (74)
HP29-651/HP29-653
15.21 (1.41)
14.50 (13.5)
5/16 (7.9)
2
22 (866)
18 (457)
4
1/3 (249)
2930 (1385)
1100
310
9 lbs. 0 oz. (4.08 kg)
3/8 (9.5)
1-1/8 (28.6)
221 (100)
Litho U.S.A.
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Table of Contents
Related Manuals for Lennox HP29 Series
Summary of Contents for Lennox HP29 Series
- Page 1 7/8 (22.2) 7/8 (22.2) 1-1/8 (28.6) Shipping weight lbs. (kg) 1 package 174 (79) 199 (90) 206 (93) 221 (100) *Refrigerant charge sufficient for 20 ft. (6.1 m) length of refrigerant lines. © 1997 Lennox Industries Inc. Page 1 Litho U.S.A.
-
Page 2: Specifications
SPECIFICATIONS Model No. HP29-018 HP29-024 HP29-030 HP29-036−1ph HP29-036−3ph Outer coil 11.41 (1.06) 11.41 (1.06) 15.21 (1.43) 15.21 (1.41) 15.21 (1.41) Net face area Net face area Inner coil - - - - - - - - 5.44 (.51) 14.50 (1.35) 5.44 (.51) sq. -
Page 3: I − Unit Information
All major components (indoor blower/coil) must be matched FAN/MOTOR CONTROL according to Lennox recommendations for the compressor to be covered under warranty. Refer to the Engineering Handbook for approved system matchups. A misapplied system will cause erratic operation and can result in early compressor failure. - Page 4 1 − Transformer T5 2 − Dual Capacitor C12 The compressor (scroll or reciprocating) and fan in Transformer T5 is used on all J" voltage units. T5 is used as a single-phase units use permanent split capacitor motors. The capacitor is located inside the unit control box (see figure 4 and step-down transformer for the outdoor fan motor.
-
Page 5: Electrostatic Discharge (Esd)
Defrost Control CMC1 relay. See figure 3. K10 is energized by the indoor The defrost control board in he HP29 series units has the thermostat terminal Y1 (24V). When K10 is energized, a combined functions of a time/temperature defrost control, set of N.O. - Page 6 NOTE − COMPONENT LOCATIONS WILL VARY WITH BOARD MANUFACTURER PRESSURE SWITCH DIAGNOSTIC LEDs PRESSURE SWITCH SAFETY CIRCUIT SAFETY CIRCUIT CONNECTIONS CONNECTIONS CONNECTION FOR FACTORY−INSTALLED JUMPER ONE OPTIONAL (Remove to add DEFROST SWITCH pressure switches) INTERVAL High TIMING PINS FACTORY−INSTALLED Pressure JUMPER Switch (Remove to add...
- Page 7 9 − Defrost System Defrost Control Timing Pins Units built April 2002 and later Each timing selection provides different accumulated compressor run time period during one The HP29 defrost system includes two components: a thermostat run cycle. This time period must occur before defrost thermostat and a defrost control.
- Page 8 Pressure Switch Circuit Time−Delay Relay The time delay is five minutes long. The delay feature The defrost control incorporates a pressure switch circuit protects the compressor in cased of an interruption in that allows the application of an optional high pressure power to the unit.
-
Page 9: Scroll Compressor
Table 6 shows the specifications of reciprocating vacuum than reciprocating compressors. Deep vacuum compressors used in HP29 series units. operation can cause internal fusite arcing resulting in TABLE 6 damaged internal parts and will result in compressor HP29 COMPRESSOR SPECIFICATIONS failure. -
Page 10: Refrigerant System
1 − Compressor Cover (Figure 9) CONDENSER FAN MOTOR compressor cover COVER AND COMPRESSOR ACCESS SLIT FOR constructed of vinyl-faced SUCTION FAN GUARD fiberglass is used on all LINE Remove (7) screws HP29 units. cover SNAP WIRING DRIP provides an acoustic barrier. BUTTONS LOOP The cover slides over the... - Page 11 LIQUID LINE SERVICE VALVE (VALVE OPEN) IMPORTANT INSERT HEX STEM CAP WRENCH HERE Service valves are closed to the heat pump unit and open to line set connections. Do not open un- SERVICE til refrigerant lines have been leak tested and PORT evacuated.
- Page 12 VAPOR LINE SERVICE VALVE (VALVE OPEN) VAPOR LINE (BALL TYPE) SERVICE VALVE INSERT HEX STEM CAP (VALVE OPEN) WRENCH HERE INLET (TO INDOOR COIL) USE ADJUSTABLE WRENCH ROTATE STEM CLOCKWISE 90_ TO CLOSE ROTATE STEM COUNTER-CLOCKWISE 90_ TO OPEN SCHRADER VALVE OUTLET (TO COMPRESSOR)
- Page 13 See figure 15 for unit refrigerant components. Field refrigerant piping consists of liquid and vapor lines from the outdoor unit (sweat connections). Use Lennox L10 (flare) or L15 (sweat, non−flare) series line sets as shown in table 9 or use field−fabricated refrigerant lines.
- Page 14 IV − CHARGING C − Evacuating the System Unit charge is based on a matching indoor coil and IMPORTANT outdoor coil with a 15 foot (4.5 m) line set. For varying The compressor should never be used to lengths of line set, refer to table 10. evacuate a refrigeration or air conditioning system.
- Page 15 TABLE 12 IMPORTANT APPROACH METHOD AMBIENT TEMPERATURE OF 60 _F (16 _C) OR Liquid Line °F Warmer Than Outside The following procedures require accurate ABOVE Model (Ambient) Temperature readings of ambient (outdoor) temperature, liquid 10°F (5.6°C) HP29−018 temperature and liquid pressure for proper HP29−024 13°F (7.2°C) charging.
-
Page 16: Maintenance
TABLE 13 SUBCOOLING METHOD TABLE 14 AMBIENT TEMPERATURE BELOW 60 _F (16 _C) SUBCOOLING METHOD AMBIENT TEMPERATURE BELOW 60 _F (16 _C) Model Condensing Temp°F Warmer Than Liquid Line Model Condensing Temp°F Warmer Than Liquid Line HP29−211 8°F (4.4°C) 8°F (4.4°C) HP29−261 6°F (3.3°C) HP29−018... - Page 17 VI − REFRIGERANT LINE NOISE ensure proper refrigerant line set isolation. Figure 17 shows how to install line sets on vertical runs. Figure 18 It is important to properly isolate the refrigerant lines to shows how to install line sets on horizontal runs. Figure 19 prevent unnecessary vibration.
- Page 18 REFRIGERANT LINE SETS: HOW TO INSTALL HORIZONTAL RUNS To hang line set from joist or rafter, use either metal strapping material Wire Tie or anchored heavy nylon wire ties. (around vapor line only) 8 feet Floor Joist or Roof Rafter Tape or Wire Tie 8 feet Strapping Material (around vapor line only)
- Page 19 VII − WIRING DIAGRAMS AND SEQUENCE OF OPERATION HP29 SINGLE-PHASE WITH RECIPROCATING COMPRESSOR HP29−1 / −2 UNITS Page 19...
- Page 20 HP29 SINGLE-PHASE WITH RECIPROCATING COMPRESSOR Page 20...
- Page 21 HP29 SINGLE-PHASE WITH RECIPROCATING COMPRESSOR Page 21...
- Page 22 HP29 SINGLE−PHASE WITH SCROLL COMPRESSOR HP29−1 / −2 UNITS Page 22...
- Page 23 HP29 SINGLE−PHASE WITH SCROLL COMPRESSOR Page 23...
- Page 24 HP29 SINGLE−PHASE WITH SCROLL COMPRESSOR Page 24...
- Page 25 HP29 SINGLE-PHASE OPERATING SEQUENCE a−HP29 P Voltage Operation Sequence FIRST STAGE HEAT: This is the sequence of operation for HP29 P" voltage 10 − Heating demand initiates at Y1. units. This sequence applies to HP29 models equipped 11 − 24VAC energizes compressor contactor K1. with either a reciprocating, or scroll compressor.
- Page 26 HP29 THREE−PHASE WITH RECIPROCATING OR SCROLL COMPRESSOR HP29−1/−2 NOTE−Scroll three−phase compressors must be phased correctly. Compressor noise may be significantly higher indicating phasing is incorrect. Compressor operating backwards will not provide cooling. Contin- ued backard operation will cause compressor to cylce on internal protector. Page 26...
- Page 27 HP29 THREE−PHASE WITH RECIPROCATING OR SCROLL COMPRESSOR Page 27...
- Page 28 HP29 THREE-PHASE OPERATING SEQUENCE a−HP29 Y", G", and J" Voltage Operation Sequence FIRST STAGE HEAT: 9 − Heating demand initiates at Y1. This is the sequence of operation for HP29 Y" voltage. HP29 G" and J" voltage units are similar, but have a few 10 −...