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©2022 Lennox Industries Inc.
Dallas, Texas, USA
THIS MANUAL MUST BE LEFT
FOR FUTURE REFERENCE
WARNING
Improper installation, adjustment, alteration, service
or maintenance can cause property damage, personal
injury or loss of life. Installation and service must be
performed by a licensed professional HVAC installer or
equivalent, or service agency.
IMPORTANT
The Clean Air Act of 1990 bans the intentional venting of
refrigerant (CFCs, HCFCs and HFCs) as of July 1, 1992.
Approved methods of recovery, recycling or reclaiming
must be followed. Fines and/or incarceration may be
levied for noncompliance.
INSTALLATION
INSTRUCTIONS
LRP16G(E/X) / LRP16HP UNITS
RESIDENTIAL PACKAGED UNITS
Gas/Electric - Heat Pump
508202-01
8/2022
Table of Contents
Unit Dimensions ..........................................................2
Roof Curb Dimensions ................................................4
Adjustable Roof Curb Dimensions...............................6
Installation ...................................................................7
Venting.........................................................................9
Duct System ..............................................................10
Condensate Drain......................................................11
Gas Piping .................................................................11
Electrical Wiring .........................................................12
Heating Start-Up .......................................................13
Operation ...................................................................15
Maintenance - LRP16GE ..........................................18
Blower Performance ..................................................20
Wiring Diagram - LRP16GE .....................................21
LRP16HP ...................................................................22
Sequence of Operation..............................................23
Defrost System ..........................................................25
System Performance .................................................27
Maintenance - LRP16HP ..........................................27
Wiring Diagram - LRP16HP ......................................30
As with any mechanical equipment, contact with sharp
sheet metal edges can result in personal injury. Take
care while handling this equipment and wear gloves and
protective clothing.
Page 1
CAUTION
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Summary of Contents for Blue Summit LRP16HP
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Page 1: Table Of Contents
System Performance ..........27 IMPORTANT Maintenance – LRP16HP ..........27 Wiring Diagram – LRP16HP ........30 The Clean Air Act of 1990 bans the intentional venting of refrigerant (CFCs, HCFCs and HFCs) as of July 1, 1992. CAUTION Approved methods of recovery, recycling or reclaiming must be followed. -
Page 2: Unit Dimensions
Unit Dimensions - Small Base 47.66 2.48 1.98 2.33 2.33 16.77 14.02 RETURN SUPPLY 18.52 11.49 11.49 16.07 TOP VIEW 47.66 POWER ENTRY GAS ENTRY 6.94 3.25 4.56 20.31 21.06 23.19 SIDE VIEWS CONDENSATE DRAIN 3/4 NPT 5.75 3.55 40.89 21.63 4.12 TYPICAL... - Page 3 Unit Dimensions - Large Base 56.13 2.11 2.39 2.33 2.33 19.49 19.49 RETURN SUPPLY 18.52 11.49 11.49 TOP VIEW 16.07 47.66 POWER ENTRY GAS ENTRY 6.94 3.25 10.06 25.81 26.56 28.68 SIDE VIEWS CONDENSATE DRAIN 3/4 NPT 5.75 3.55 44.89 21.63 4.12 TYPICAL...
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Page 4: Roof Curb Dimensions
Roof Curb Dimensions - Small Base 3/4 (19) RETURN Opening for Power Entry OPENING Through Unit Base 5-1/2 x 5-5/8 in. (140 x 31 mm) 16-7/8 44-3/8 (429) (1127) 11-1/2 2-1/8 (287) (54) Insulated Panels 5-3/4 13-7/8 (146) (352) SUPPLY 5-1/2 OPENING 8 (203) - Page 5 Roof Curb Dimensions - Large Base 3/4 (19) Opening for Power Entry Through Unit Base 5-1/2 x 5-5/8 in. 19-1/2 (140 x 31 mm) 44-3/8 (380) 11-1/2 2-1/8 (1127) (287) (54) RETURN Insulated OPENING Panels 19-1/2 (380) SUPPLY OPENING 11-1/2 (287) 8 (203) 22-7/8...
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Page 6: Adjustable Roof Curb Dimensions
Adjustable Roof Curb Dimensions ADJUSTABLE PITCH ROOF CURB FRONT FLANGE 8 (203) NOTE: UNIT BASE RAIL Minimum CLIPS (4) Height 4 (102) BUILT-IN RAIN SIDES AND DIVERTER BACK FLANGE (Not Shown) 6 (152) BUILT-IN DRIP EDGE UNIT BASE RAIL 3/4 (76) UNIT BASE RAIL CLIPS (4) (152) -
Page 7: Installation
Inspection As soon as the unit is received, it should be inspected WARNING for possible damage during transit. If damage is evident, the extent of the damage should be noted on the carrier’s Improper installation, adjustment, alteration, service, or freight bill. A separate request for inspection by the carrier’s maintenance can cause injury or property damage. - Page 8 • A room thermostat must control the unit. The use of Do not permit overhanging structures or shrubs to obstruct condenser air discharge outlet, combustion fixed jumpers that will provide continuous heating or cooling is not allowed. air inlet, or vent outlet. •...
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Page 9: Venting
Venting Rigging Unit Exercise care when moving the unit. Do not remove any The vent outlet must be installed in a location as to prevent packaging until the unit is near the place of installation. building degradation and must be consistent with the National Fuel Gas Code, Z223.1 or CAN/CGA-B149.1 &... -
Page 10: Duct System
Duct System NOTE: The duct system should be designed and sized according to the methods in the Air Conditioning Contractors of If an existing gas furnace is being removed from a America (ACCA) manual that is most appropriate to the common venting system when this packaged unit is installation application. -
Page 11: Condensate Drain
NOTE: Minimum Pitch: 1 in (25) Per 10” The filter rack must be installed prior to installation of (3048 mm) of Unit the unit in applications where access to the rear panel Line is limited. Open Vent Unit Model Filter 1 Filter 2 24,36 14 x 20 x 1... -
Page 12: Electrical Wiring
to the mains. Check all joints for leaks with soapy For satisfactory operation, LP/propane gas pressure must solution or other material suitable for the purpose. be a minimum of 11” w.c. at the unit under full load. • The furnace and its field supplied manual shutoff valve Complete information regarding... -
Page 13: Heating Start-Up
Use copper conductors only. Each unit must be wired with a separate branch circuit and be properly fused. THERMOSTAT OUTDOOR UNIT NOTE: An optional bottom-entry power kit is available for these units. See the kit instructions for proper installation details. Blue Yellow Field-Supplied Fused... - Page 14 Slide the gas valve switch to the “ON” position (see Gas input must never exceed the input capacity shown on the rating plate. Units fueled by natural gas are rated for Figure 7). manifold pressures of 2.0 inches W.C. for first stage Turn on electrical power to the unit.
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Page 15: Operation
To check this pressure: To Reassemble: Reverse above steps. After reassembly of all parts is complete and all wires Slide the gas valve switch to the “OFF” position (see are reconnected, open the main manual gas shutoff Figure 7). valve; check for and correct any gas leaks. Turn Remove plug on valve marked “OUTLET PRESSURE.”... - Page 16 Cooling System COOL The COOL jumper is used to determine the CFM during The cooling system is a factory-charged with HFC-R-410A. cooling operation. This jumper selection is activated for The compressor is hermetically sealed and base-mounted cooling when Y1/Y2 is energized. with rubber-insulated bolts.
- Page 17 Ensure unit is installed per manufacturer’s instructions and The ignition control energizes the gas valve and spark. that line voltage and air flow are correct. Refer to Table 3 for The control ignores the flame sense signal for the first proper performance value.
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Page 18: Maintenance - Lrp16Ge
Condenser Coil Flame Sensor Clean condenser coil annually with water and inspect If the ignition control does not receive a signal from the monthly during the cooling season. flame sensor indicating that the burners have established flame, the gas valve closes after the 10-second trial for Condenser coil may need to be cleaned at startup in ignition period. - Page 19 Ignition Control LED Codes The ignition control LED flashes codes which indicate normal or abnormal operations: LED Status Flashing Rate Fault Description Normal operation: One flash per Slow Flash second No call for heat Normal operation: Two flashes per Fast Flash second Call for heat System lockout:...
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Page 20: Blower Performance
Blower Performance Blower Control Jumper Speed Positions “ADJUST” Jumper “COOL” Speed - cfm “HEAT” Speed - cfm “CONTINUOUS FAN” Speed - cfm Setting -024 Blower Performance 0 through 0.80 in. w.g. External Static Pressure Range 1100 1100 1000 NORM 1000 1100 1000 —... -
Page 21: Wiring Diagram - Lrp16Ge
Wiring Diagram – LRP16GE Figure 9. Wiring Diagram – Single Phase Page 21... -
Page 22: Lrp16Hp
LRP16HP Condensate Drain Do not operate unit without a drain trap. The condensate drain is on the negative pressure side of the blower; therefore, air being pulled through the condensate line will CAUTION prevent positive drainage without a proper trap. -
Page 23: Sequence Of Operation
Figure 11. Heater Kit Accessory (if used) Each of the numbers corresponds with an air volume (CFM) setting. The ADJUST jumper is labeled Test, -, The unit is fully equipped for operation without auxiliary +, and Norm. - Page 24 COOL demand. This minimizes noise and eliminates the initial blast of air when the blower is initially energized. The COOL jumper is used to determine the CFM during cooling operation. In AC units, this jumper selection is activated for cooling when Y1/Y2 is energized. In heat ADJUST pump units, the selection is activated for cooling when Y1/ The ADJUST pins allow the motor to run at normal speed,...
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Page 25: Defrost System
Heating - Heat Pump Stage Upon heating demand, the thermostat closes circuit R to DEFROST TIMING PINS (P1) Y1, which closes the unit contactor, starting the compressor and outdoor fan. Second-stage heating is initiated when TEST the thermostat energizes Y2, or when the outdoor ambient PINS temperature is below the lock-in temperature (see Second- DIAGNOSTIC... - Page 26 Defrost Control Timing Pins Pressure Switch Circuit Each timing pin selection provides a different accumulated High and low pressure switches are connected to the compressor run time period during one thermostat run defrost control board on heat pump models. Air conditioning cycle.
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Page 27: System Performance
Care should components. be used when cleaning the coil so that the coil fins are not damaged. Maintenance – LRP16HP Do not permit the hot condenser air discharge to be obstructed by overhanging structures or shrubs. WARNING... - Page 28 Page 28...
- Page 29 Page 29...
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Page 30: Wiring Diagram - Lrp16Hp
IMPORTANT – LRP16HP 9-PIN RELAY MIS-WIRING ISSUE There have been some field reports of the clear 9-pin defrost relay being mis-wired from the factory, with the yellow wires re- versed on pins # 6 and # 9 in relation to the white two-stage wire attached to pin # 9. - Page 31 Original Wiring Figure 14. HP Wiring Diagram Page 31...
- Page 32 Field / Factory Correction Wiring Figure 15. HP Wiring Diagram Page 32...
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