Lennox SW 036 Installation Instructions Manual
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Lennox SW 036 Installation Instructions Manual

Lennox SW 036 Installation Instructions Manual

Water source heat pump unit
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Litho U.S.A.
RETAIN THESE INSTRUCTIONS
2011
FOR FUTURE REFERENCE
WARNING
Improper installation, adjustment, alteration, ser­
vice or maintenance can cause property damage,
personal injury or loss of life. Installation and ser­
vice must be performed by a qualified installer or
service agency.
Parts Arrangement
. . . . . . . . . . . . . . . . . . . . .
Dimensions
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . .
SW 036 & 060 Parts Arrangement
BLOWER
MOTOR
BLOWER
IMC UNIT
CONTROLLER
REVERSING
VALVE
BOTTOM
POWER ENTRY
COMPRESSOR
12/11
*2P1211*

Table Of Contents

Page 2
Page 3
Page 6
Page 6
Page 6
Page 7
Page 7
Page 7
Page 8
Page 8
FILTERS
INDOOR
INSTALLATION
INSTRUCTIONS
SW 036
( 3 TON)
SW 060
( 5 TON)
SW 120
(10 TON)
SW 240
(20 TON)
WATER SOURCE HEAT PUMP UNITS
506671-01
12/2011
Supersedes 1/2011
. . . . . . . . . . . . . . . . . . . . .
Factory-Installed Options
. . . . . . . . . . . . . . . .
Electrical Connections
. . . . . . . . . . . . . . . . . .
Cooling Start-Up
. . . . . . . . . . . . . . . . . . . . . . .
Water Circuit Operation
. . . . . . . . . . . . . . . . .
Freeze Protection
. . . . . . . . . . . . . . . . . . . . . .
Water Quality Guidelines
. . . . . . . . . . . . . . . .
Service
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHARGE
COMPENSATOR
*P506671-01*
Page 11
. . . . . . . . . . . . . .
Page 11
Page 12
Page 14
. . . . . . . .
Page 16
Page 24
Page 28
Page 28
Page 30
Page 30
(SEE FIGURE 6)
CONNECTION
CONNECTION
BOTTOM
WATER ENTRY
WATER TO
506671-01

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Summary of Contents for Lennox SW 036

  • Page 1: Table Of Contents

    ....... Page 30 Water Supply Connections ....Page 8 SW 036 & 060 Parts Arrangement FILTERS INDOOR (FOUR - 16 X 20 X 2”) COIL...
  • Page 2 SW 120 Parts Arrangement ECONOMIZER INDOOR DAMPERS (OPTIONAL) COIL BLOWER FILTERS MOTOR (SIX - 16 X 25 X 2”) BLOWER STG. 2 WATER FLOW CONTROL VALVE IMC UNIT (SEE FIGURE 7) CONTROLLER STG. 1 WATER FLOW CONTROL VALVE (SEE FIGURE 7) REVERSING VALVE 1 WATER OUTLET...
  • Page 3 SW 036 & 060 Dimensions 4-3/8 OUTDOOR AIR HOOD (111) (Factory Installed Option) 4‐1/4 ECONOMIZER (108) DAMPERS (Factory Installed Option) 12‐1/2 (711) (318) 15 (381) 4-1/2 FILTERS (114) RETURN AIR OPENINGS 3 X 12 (76 X 305) 14-1/4 BOTTOM WATER...
  • Page 4 SW 120 Dimensions OUTDOOR AIR HOOD 8-11/16 (Factory Installed Option) (221) 4‐1/4 ECONOMIZER (108) DAMPERS (Factory Installed Option) 12‐3/8 (1016) (314) 15 (381) 5-5/8 FILTERS BOTTOM (143) WATER ENTRY RETURN AIR OPENING 3 X 12 (76 X 305) 18 (457) INDOOR COIL BOTTOM WATER ENTRY...
  • Page 5 SW 240 Dimensions Note: Optional equipment shown for information only. See Engineering Handbook for standard and optional features. OPTIONAL OUTDOOR AIR HOOD 4‐1/4 23-7/8 (Factory or Field Installed) (606) (108) OPTIONAL 17-3/8 60-1/2 (1537) 15 (381) ECONOMIZER DAMPERS (440) BOTTOM RETURN 5-1/2 (Factory or Field Installed) BOTTOM...

  • Page 6: Shipping And Packing List

    Shipping and Packing List CAUTION Package 1 of 1 contains: Danger of sharp metallic edges. Can cause injury. 1- Assembled unit Take care when servicing unit to avoid accidental contact with sharp edges. Check unit for shipping damage. Receiving party should Installation of heat pumps must conform with standards in contact last carrier immediately if shipping damage is found.

  • Page 7: Unit Support

    5- Units require support along all four sides of unit base. WARNING Supports must be constructed of steel or suitably treated wood materials. Electric shock hazard and danger of NOTE-When installing a unit on a combustible surface for explosion. Can cause injury, death or downflow discharge applications, an S1 / S6 / S7CURB product or property damage.

  • Page 8: Condensate Drains

    Condensate Drains Water Supply Connections Supply and return water connections are to be made with Remove cap and make drain connection to the 1” N.P.T. black iron pipe suitable for use in water systems. Lines drain coupling provided on unit. A trap must be installed must enter the unit through the opening in the base.

  • Page 9: Coil (Four - 16 X 20 X 2")

    BLACK IRON PIPES SECURE WITH FOUR SCREWS CUT FOUR SEMI- CIRCLES TO FIT AROUND BLACK IRON PIPES FIGURE 5 WATER-TO-REFRIGERANT CIRCUIT - SW 036, 060 MANUAL B39 WATER FLOW AIR VENT THREE-WAY CONTROL VALVE VALVE IN BYPASS (ON/OFF) POSITION WATER TO...
  • Page 10 WATER-TO-REFRIGERANT CIRCUIT - SW 120 B42 STG. 2 WATER FLOW CONTROL B39 STG. 1 WATER VALVE (ON/OFF) FLOW CONTROL WATER TO MANUAL AIR VALVE (ON/OFF) REFRIGERANT VENTS THREE-WAY COIL STG. 2 VALVE IN BY­ WATER TO PASS POSITION REFRIGERANT COIL STG. 1 THREE-WAY VALVE IN MAIN LOOP POSITION...

  • Page 11: Water Bypass Loop

    Water Bypass Loop Bleed Air From Water Lines The water bypass loop is used to flush the water system 1- Turn off all power to unit before bleeding lines. without routing water through the rooftop unit components. Units are shipped with three-way water 2- Turn the three-way water inlet valve to main loop in/out valves in the bypass position.
  • Page 12 INTAKE HOOD MEASURE REGULATOR WATER PRESSURE HOOD SECURED IN PLACE FOR SHIPMENT HOOD INSTALLED PRESSURE/TEMPERATURE AUTOMATIC PORTS (TWO ON EACH FLOW REGULATORS AUTO FLOW REGULATOR) FIGURE 11 FIGURE 12 Factory-Installed Economizer SUPPORT BRACKET LOCATION - 240 UNITS A-Economizer The A56 (EM1) economizer board controls economizer operation and provides potentiometers to control minimum damper...
  • Page 13 240 Units With Hood Filter Option REMOVE LEFT SIDE OF HOOD FROM UNIT Outdoor air hood is shipped folded down over the horizontal supply air opening. The intake hood filters and support brackets are shipped unassembled in the blower LEFT compartment.
  • Page 14 C-Wiring Connections Electrical Connections This unit is equipped with a series of integrated modular POWER SUPPLY control (IMC) boards which control unit function. Refer to the IMC manual provided with each unit. Do not apply power or close disconnect switch until The IMC will operate the unit from a thermostat, zone installation is complete.
  • Page 15 can be used as a back-up mode. Refer to the IMC manual provided with each unit to change ECTO options. See figure 19 for field wiring. 24 VOLT FIELD WIRING IN ZONE SENSOR MODE (IMC in Zone Sensor Mode ECTO 6.01 option 1, 2, 3) A2 SENSOR FIGURE 19 Page 15...

  • Page 16: Blower Operation And Adjustment

    1- Remove screws on either side of blower assembly sliding base. See figure 20, 21, or 22. 2- Pull base toward outside of unit. BLOWER ASSEMBLY (SW 036 & 060) TO INCREASE BELT TENSION TO INCREASE CFM 1-Loosen four screws securing blower LOOSEN ALLEN SCREW &...
  • Page 17 BLOWER ASSEMBLY (SW 120) TO INCREASE BELT TENSION 1-Loosen four bolts securing motor base to mounting frame. 2-Turn adjusting bolt to the right, or clockwise, to move the motor outward and tighten the belt. 3-Tighten two bolts on motor pulley side. IMPORTANT - Align top edges of blower motor base and mounting frame base parallel before tightening two bolts on the other side of base.
  • Page 18 D-Blower Belt Adjustment Example: Deflection distance of a 1016mm span would be 16mm. Maximum life and wear can be obtained from belts only if proper pulley alignment and belt tension are maintained. 3- Measure belt deflection force. For a used belt, the deflection force should be 5 lbs.
  • Page 19 TABLE 2 SW 036 BLOWER PERFORMANCE NOTE - Blower Table Includes Resistance For Base Unit With Wet Indoor Coil And Air Filters In Place. EXTERNAL STATIC PRESSURE - Inches Water Gauge Volume Drive 0.10 0.20 0.30 0.40 0.50 0.60 0.32 0.35...
  • Page 20 TABLE 3 SW 060 BLOWER PERFORMANCE NOTE - Blower Table Includes Resistance For Base Unit With Wet Indoor Coil And Air Filters In Place. EXTERNAL STATIC PRESSURE - Inches Water Gauge Drive Volume 0.10 0.20 0.30 0.40 0.50 0.60 0.32 0.35 0.37 0.39...
  • Page 21 TABLE 4 SW 120 BLOWER PERFORMANCE NOTE - Blower Table Includes Resistance For Base Unit With Wet Indoor Coil And Air Filters In Place. EXTERNAL STATIC PRESSURE - Inches Water Gauge Drive 0.10 0.20 0.30 0.40 0.50 0.60 0.70 Volume 3000 0.67 0.79...
  • Page 22 TABLE 5 SW 240 BLOWER PERFORMANCE NOTE - Blower Table Includes Resistance For Base Unit With Wet Indoor Coil And Air Filters In Place. EXTERNAL STATIC PRESSURE - Inches Water Gauge Drive 0.10 0.20 0.30 0.40 0.50 0.60 0.70 Volume 6000 1.04 1.29...
  • Page 23 In Canada, nominal motor output is also maximum usable motor output. If motors of comparable output are used, be sure to keep within the service factor limitations outlined on the motor nameplate. TABLE 7 SW 036 & 060 CAV MANUFACTURER'S NUMBERS DRIVE COMPONENTS ADJUSTABLE SHEAVE FIXED SHEAVE BELTS Supplier No.
  • Page 24 TABLE 8 SW 120 CAV MANUFACTURER'S NUMBERS DRIVE COMPONENTS ADJUSTABLE SHEAVE FIXED SHEAVE BELTS Supplier No. OEM Part No. Supplier No. OEM Part No. Supplier No. OEM Part No. Drive No. 1VP40 X 7/8 79J0301 BK77 X 1 49K4001 BX57 78L5301 TABLE 9 SW 240 CAV MANUFACTURER'S NUMBERS...

  • Page 25: Refrigerant

    REFRIGERANT ROUTING - COOLING OPERATION 3, 5, AND 10 TON UNITS FILTER / DRIER TO INDOOR COIL FROM INDOOR COIL WATER FLOW AUTOMATIC CONTROL VALVE FLOW BYPASS (ON/OFF) REGULATOR CIRCUIT REVERSING VALVE EXPANSION VALVE THREE-WAY VALVES* WATER STRAINER* CHARGE WATER TO COMPRESSOR COMPENSATOR REFRIGERANT COIL*...
  • Page 26 REFRIGERANT ROUTING - HEATING OPERATION 3, 5, AND 10 TON UNITS FILTER / DRIER FROM INDOOR COIL TO INDOOR COIL WATER FLOW AUTOMATIC CONTROL VALVE FLOW BYPASS CIRCUIT (ON/OFF) REGULATOR REVERSING VALVE EXPANSION VALVE THREE-WAY VALVES* WATER STRAINER* CHARGE WATER TO COMPRESSOR COMPENSATOR REFRIGERANT COIL*...
  • Page 27 The gauges should be rated TABLE 10 for use with pressures of 0-800 on the high side and a low SW 036 COOLING OPERATING PRESSURES side of 30” vacuum to 250 psi with dampened speed to Entering...
  • Page 28 2- Low Pressure Switch (S87, S88) TABLE 12 SW 060 COOLING OPERATING PRESSURES The compressor circuit is protected by a loss of Discharge Suction + 5 charge switch. Switch opens at 40 psig + 5 psig (276 Entering Water Temp +10 psig psig + 34 kPa) and automatically resets at 90 psig + 5...
  • Page 29 Controller is located on the right side of the controls hat TABLE 18 ANTIFREEZE MIXTURE FREEZING TEMPERATURES section above compressor(s). The controller sensor is % By located in the water compartment. Volume S116 ANTIFREEZE CONTROLLER Propylene ° ° ° ° °...
  • Page 30 3- Press the SET key again to access Stage 1 Maintenance Differential. DIF1 will blink and the screen will display Water quality should be checked periodically to maintain the current setting (5°F). Use the UP/DOWN arrow acceptable water quality levels. If the water-to-refrigerant keys to change the temperature.
  • Page 31 and figure 8 for 20 ton units. Turn the three-way REMOVE FILTERS - 20 TON SHOWN valve levers to the bypass position as shown. 2- Remove the hose end cap. See figure 33. 3- Open the hose end drain valve and drain the fluid into an approved container.

  • Page 32: Water Outlet

    START-UP REPORT Job Name:___________________________________ Inspections and Checks Store No.___________Start-Up Date:______________ R410A j Damage? If yes, reported to:____________________________ Address:_____________________________________ City:______________________________State:______ Verify factory and field-installed accessories. Start-Up Contractor:____________________________ Check electrical connections. Tighten if necessary. Technician:___________________________________ Supply voltage: L1-L2______L1-L3_____L2-L3_____ Model No.:___________________________________ If unit contains a 208-230/240 volt transformer: Check primary transformer tap j Serial No.:____________________________________ Transformer secondary voltage: __________...

This manual is also suitable for:

Sw 060Sw 120Sw 240

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