Bosch CL Series Installation, Operation And Maintenance Manual
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Bosch CL Series Installation, Operation And Maintenance Manual

Bosch CL Series Installation, Operation And Maintenance Manual

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Installation, Operation, and Maintenance Manual
CL Series Heat Pumps
CL007 | CL009 | CL012 | CL015 | CL018 | CL024 | CL030 | CL036 | CL042 | CL048 | CL060 | CL070

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Summary of Contents for Bosch CL Series

  • Page 1 Installation, Operation, and Maintenance Manual CL Series Heat Pumps CL007 | CL009 | CL012 | CL015 | CL018 | CL024 | CL030 | CL036 | CL042 | CL048 | CL060 | CL070...

  • Page 2: Table Of Contents

    Single-Stage, Single-Phase Unit with Optional 13.6 Option Card (included with Economizer, Hot Gas Reheat Components, CT Motor, and Electric Heat ....80 and/or Boilerless control options)......38 21.10 Single-Stage, Single-Phase Unit with Optional CL Series Heat Pumps — 8733838716 (2024/05)
  • Page 3 22.3 Horizontal (HZ) Unit Dimensions ......92 22.4 Horizontal (HZ) Cabinet Options Dimensions..94 22.5 Service Clearance ..........96 23 Terminology..............97 23.1 Acronyms............97 23.2 Terms............... 97 24 Check-Out Sheet ............98 25 Notes................99 CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 4: Document Conventions

    Follow all safety codes. Wear safety glasses and work gloves. Use a quenching cloth for brazing, and place a fire extinguisher close to the work area. CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 5: Refrigerant Safety Warnings

    Sheet metal parts may have sharp edges or burrs. Use care and wear appropriate protective clothing and gloves when Risk of Fire! handling parts. Flammable Refrigerant Used—Dispose of properly in accordance with federal or local regulations. CL Series Heat Pumps — 8733838716 (2024/05)
  • Page 6 If a compressor is removed from this unit, refrigerant circuit oil will remain in the compressor. To avoid leakage of compressor oil, refrigerant lines of the compressor must be sealed after it is removed. CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 7: Model Nomenclature

    Compressor Monitor Relay E — Pump/Valve Relay G — Boilerless Control J — Disconnect Switch M — Wire Transformer to 208 Volts NOTE: Not all options are available on all models. Fig. 1 Model Nomenclature CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 8: General Description

    CL series units are offered with a wide range of factory-installed options including: internal 2-way valves; DuoGuard™ air coils; 2“4-sided filter racks; MERV 13 filters (with constant airflow ECM motors);...

  • Page 9: Operating Limits

    Note: Maximum and minimum operating limits may not be combined. Refer to Engineer Submittal Sheet on the product information page. (See the QR code on the back page of the IOM). Acronyms: LWT: Leaving Water Temperature EWT: Entering Water Temperature Table 2 Operating Limits CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 10: Approved Supplementary Heaters

    — — — — —   —   —                Table 3 Approved Supplementary Heaters 10 | CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 11: Inspecting And Storing The Equipment

    Note any visible damage or shortage on all copies of the freight bill. Concealed damage not discovered until after removing the units from packaging must be reported to Bosch by the original purchaser by filing a claim at: https://claims.bosch-homecomfort.us...

  • Page 12: Unit Installation

    Where access to side panels is limited, pre-removal of the control box side-mounting screws may be necessary for future servicing. NOTICE DO NOT use CL series units for temporary heating, air NOTICE conditioning or ventilation during construction, especially when plastering, sanding, or painting. Care should be taken to CL series units are not approved for outdoor installation;...

  • Page 13: Protecting The Unit During Construction

    CL heat pumps feature fold-out return and supply air duct flanges. These fold-out flanges come folded in from the factory to The supply air location on CL Series Horizontal units can be field allow the heat pumps to more easily fit through doorways and converted from end blow to straight through or vice-versa.
  • Page 14 HZ units. The rods must be securely anchored to the ceiling. Refer to the hanging bracket assembly and installation instructions for details. Fig. 5 Blower Configuration 14 | CL Series Heat Pumps — 8733838716 (2024/05)
  • Page 15 1. Remove and discard factory provided screws from locations where hanging brackets will be installed as shown in Fig. 8. Fig. 6 Pitched Unit | 15 CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 16: Condensate Drain

    4. Hang the unit and assemble the field-provided threaded rod, nuts, and washers on to the brackets as shown in Fig. 10. DANGER The rods must be securely anchored to the ceiling. Fig. 11 Condensate Drain Installation 16 | CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 17: Duct System

    5.7 Duct System Never use flexible hoses of a smaller inside diameter than that All CL Series models are provided with a supply air outlet collar of the water connections on the unit. and return air duct flange to facilitate duct connections.
  • Page 18 Occasionally these valves produce a flow noise that can be reduced by applying some back pressure. To accomplish this, slightly close the leaving isolation valve. 18 | CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 19: Electrical-Power Supply Wiring

    Field wiring must be installed by qualified and trained personnel. WARNING Power to the unit must be within the operating voltage range indicated on the unit’s nameplate or on the performance data sheet. | 19 CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 20: Electrical-Low-Voltage Wiring

    For standard models, power is connected to the line (L) side of the compressor contactor and the ground to the ground lug in the The reversing valve on the CL series is energized when the unit is unit electrical box.
  • Page 21 Three Phase Total Draw is Dependent on Total VA Draw Total VA Draw the Options Installed Table 5 Low-Voltage VA Draw —Standard Construction, Hot Gas Reheat or Economizer, and Optional Components | 21 CL Series Heat Pumps — 8733838716 (2024/05)
  • Page 22 1000 ft. (300m) 22 AWG (0,33mm 1500 ft. (450m) 20 AWG (0,50mm 2500 ft. (750m.) 18 AWG (0,75mm Table 7 Length by Wire Gauge for Remote Sensor to Programmable Thermostat Wiring 22 | CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 23: Ecm Interface Board

    [4] Dehumidification Indication [5] Thermostat Contact Inputs [6] CFM Count Indicator [7] Thermostat Input Status Indication [8] Reheat Digital Outputs [9] Thermostat Outputs [10] 24 VAC [11] Hot Gas Re-Heat Enable Switch | 23 CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 24: Specific Application Considerations

    [10] P/T Ports (optional) [4] Ball Valves [11] Line Voltage Connection [5] Solenoid Valve Slow Closing [12] Control Panel/Thermostat [6] Condensate Drain Connection [13] Unit Line Voltage Disconnect [7] Drain Valves 24 | CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 25: Cooling Tower/Boiler Systems

    [9] Threaded Rod [2] Low-Voltage Control Connection [3] P/T Plugs (optional) [4] Hose Kits [5] Ball Valves [6] Supply and Return Line of Central System [7] Flex Duct Connection [8] Hanging Bracket Assembly | 25 CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 26: Geothermal Closed-Loop Systems

    Anti-freeze solutions must be used low loop (Refer to Fig. 17) temperatures are expected to occur. Operation of an CL Series unit on a closed loop application requires the extended range option. NOTICE Refer to the GLP installation manuals for more specific Closed-loop and pond applications require specialized design instructions.

  • Page 27: Water-Quality Considerations

    Fouling due to iron bacteria can also pose problems in some open loop installations. Iron bacteria fouling can quickly degrade system performance and plug heat exchangers. Air in the water system will greatly accelerate the fouling or corrosion process. | 27 CL Series Heat Pumps — 8733838716 (2024/05)
  • Page 28 < 10 ppm, < 600 µm size** Erosion Maximum Water Velocity 6 ft/sec 6 ft/sec * No "rotten egg" smell present at < 0.5 ppm H ** Equivalent to 30 mesh strainer Table 8 Water Quality Table 28 | CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 29: Post-Installation System Checkout

    9.2 Checking Scroll Compressor Rotation Scroll compressors, like the ones used on the CL series, are NOTICE phase sensitive. When out of phase, the compressors will run in reverse. After a few minutes of reverse operation, a scroll Do not use fan rotation as an indication of the unit’s phase...

  • Page 30: Start-Up

    Allow five minutes between tests for the pressure or reversing valve to equalize. 1. Turn thermostat to lowest setting and set thermostat switch to HEAT position. 2. Slowly turn the thermostat to a higher temperature until the compressor activates. 30 | CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 31: Safety Devices And The Upm Controller Overview

    When a malfunction light is used for diagnostic purposes, the [10] UPM Settings DIP Switch (SW1) connection is made at the dry contact connection terminals of [11] A2L Sensor the UPM board. [12] 24VAC Power Common | 31 CL Series Heat Pumps — 8733838716 (2024/05)
  • Page 32 30 seconds, the controller will shut down the compressor and enter into a soft-lockout condition. The default freeze limit trip is 25°F. 32 | CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 33: Upm Default Settings And Dip Switch Positions

    Test function. When it is set to “ON,” it will reduce all time delays settings to 10 seconds during troubleshooting or verification of unit operation. ( Refer to Fig. 18, item [10].)  Refer to Fig. 21.)(See Table 9.)  | 33 CL Series Heat Pumps — 8733838716 (2024/05)
  • Page 34 Both the status LED and the alarm contact will be active. The status LED will be active, 34 | CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 35: Upm Sequence Of Operation

    Safety Devices and the UPM Controller Overview 12.3 UPM Sequence of Operation Fig. 22 UPM Sequence of Operation Flowchart | 35 CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 36: Options

    13 Options CL series heat pumps can be provided an optional waterside A number of options are available on CL Series of Heat Pumps. economizer. The waterside economizer option allows a cooling The following details the purpose, function, and components of demand to be satisfied by circulating cold water through a water- each option.

  • Page 37: Hot Gas Reheat

    (For Units with DDC)—The Bosch Equipment Touch or 13.4 Hot Gas Reheat Building Management. CL series heat pumps can be provided with an optional hot gas If, during a call for heating, the supply water temperature  reheat. The hot gas reheat option cools and dehumidifies the...

  • Page 38: Option Card (Included With Economizer, Hot Gas Reheat And/Or Boilerless Control Options)

    [10] Hot Gas Reheat Output “H_OUT” [11] Boilerless Control “W_OUT” [12] Reversing Valve Output “O_OUT” [13] Option Card Standoff [14] LED Output Status [15] FAN Output “G_OUT” [16] Y Call Output “Y_OUT” 38 | CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 39: Refrigerant Leak Detection System Option

    14 Fan Motor Options 14.1 Permanent Split Capacitor Motors (PSC) The standard motor for all CL series heat pumps is a PSC motor. For all models other than 575 V units, the supplied motor is a three-speed motor. 575 V motors are single speed. If a speed change is required, follow the instructions below: 1.
  • Page 40 1776 1777 1774 1778 1776 1756 1749 1733 1728 1684 1659 1606 High 2028 2033 2029 2029 2030 2029 2024 1991 1969 1943 1906 1852 *Note: 575V models employ single-speed motors (high only). Table 11 PSC Motor Performance Date—Vertical Configuration 40 | CL Series Heat Pumps — 8733838716 (2024/05)
  • Page 41 1822 1822 1814 1793 1777 1756 1724 1675 1626 1562 — — High 2092 2082 2068 2045 2020 1968 1932 1878 1815 1730 1640 1525 *Note: 575V models employ single-speed motors (high only). Fig. 24 PSC Motor Performance Date—Horizontal Configuration | 41 CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 42: Constant Torque Motors (Ecm)

    3. Remove the speed tap wire from the terminal it is currently connected to and connect it to the terminal desired. Refer to the constant torque motor performance tables below for heat pump blower performance with the constant torque motor option. 42 | CL Series Heat Pumps — 8733838716 (2024/05)
  • Page 43 — — — — — — — — — — — — — — CL030 — — — — 1034 1005 — — — — 1071 1027 — — — — | 43 CL Series Heat Pumps — 8733838716 (2024/05)
  • Page 44 2210 2179 2145 2111 Note: Off delay = 30 seconds = After receiving an off command motor will continue running for 30 seconds. Table 12 Constant Torque Motor Performance Data—Vertical Configuration 44 | CL Series Heat Pumps — 8733838716 (2024/05)
  • Page 45 — — — — — — — — — — — CL030 — — — — — 1012 — — — — — 1083 1060 1032 — — — — — | 45 CL Series Heat Pumps — 8733838716 (2024/05)
  • Page 46 2075 1994 1908 1812 Note: Off delay = 30 seconds = After receiving an off command motor will continue running for 30 seconds. Table 13 Constant Torque Motor Performance Data—Horizontal Configuration 46 | CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 47: Constant Airflow Motors (Ecm)

    For installations where constant air delivery is critical or where external static pressure drop can vary greatly (such as with high-MERV value filters) the CL series is offered with a constant air flow ECM motor option. This option provides ECM motor efficiency combined with a constant air delivery across a wide range of external static pressures.
  • Page 48 2100 2100 2100 2100 2100 2100 2100 2100 2100 2100 A—High 2375 2375 2375 2375 2375 2375 2375 2375 2375 2375 2300 2270 Table 14 Constant Airflow Motors Performance Data—Vertical Configuration 48 | CL Series Heat Pumps — 8733838716 (2024/05)
  • Page 49 2150 Table 15 Constant Airflow Motors Performance Data—Vertical Configuration Air flow is 70% of tabulated values during fan-only operation. Air flow is 80% of tabulated value during passive-dehumidification mode when enabled. | 49 CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 50: Maintenance

    • air temperature problems. Use of the pressure and temperature charts for the unit may be required to properly determine the cause. 50 | CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 51: Checks To Electrical Devices

    Intrinsically-safe components must be replaced. for the purpose and to the correct specification. At all times the manufacturer's maintenance and service guidelines must be followed. If in doubt, consult Bosch service and support for 17.8 Check Cabling assistance. Check that cabling will not be subject to wear, corrosion, excessive pressure, vibration, sharp edges, or any other adverse environmental effects.

  • Page 52: Removal And Evacuation

    Ensure that the refrigerating system is earthed prior to  charging the system with refrigerant. Be sure to label the system when charging is complete (if not  already). Use extreme care not to overfill the refrigerating system.  52 | CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 53: Service Access

    Remove the three screws positioned above the motor.  Drop down and slide off the welded pins situated on the  opposite side from the motor. (See Fig. 27.) | 53 CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 54: Decommissioning Information

    Before carrying out this procedure, it is essential that the  technician is completely familiar with the equipment and all its Ensure that there are labels on the equipment stating the  detail. equipment contains flammable refrigerant. 54 | CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 55: Troubleshooting

    Is the Fault LED flow Inspect the air coil for dirt/debris. blinking two (2) times? Check duct work—Are dampers closed or blocked? Low pressure Check refrigerant pressure with a gauge set. fault—Low refrigerant | 55 CL Series Heat Pumps — 8733838716 (2024/05)
  • Page 56 Check air filter and return air duct work for times? Condensate fault— blockage. Check that there is adequate space Blocked return air between the return air opening and walls or other obstructions on free return applications. 56 | CL Series Heat Pumps — 8733838716 (2024/05)
  • Page 57 If not check the resistance of the compressor Burned out windings using the values shown in the compressor compressor characteristics chart. Note that the compressor must be cool (70° F) when checking the windings. | 57 CL Series Heat Pumps — 8733838716 (2024/05)
  • Page 58 Check that the wires from the thermostat to the energized Loose wire on “O” unit are securely connected and that the wires from terminal the electrical box to the reversing valve are connected. 58 | CL Series Heat Pumps — 8733838716 (2024/05)
  • Page 59 Low refrigerant capacity High humidity Check unit performance against building load Unit oversized calculations. Short cycling Poor thermostat Make sure that the thermostat is not located near a location supply air duct. | 59 CL Series Heat Pumps — 8733838716 (2024/05)
  • Page 60 Clean/descale water coil. water coil elevating heat pressure Low air flow Check filter. elevating head Increase fan speed. pressure Fast-closing valves Change valves to slow-close type. Water hammer installed Table 16 Unit Troubleshooting 60 | CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 61: Option Card Troubleshooting

    Is the W_OUT LED No Boilerless Control the Option Card is heat, then check the Heating on the Option Card operation set above the electric heat water operation. temperature. Table 17 Option Card Troubleshooting | 61 CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 62: Specification Tables

    18–23 — — — — 90° 116–145 310–376 8–9 18–23 — — — — 117–148 357–434 9–12 18–22 — — — — 100° 118–147 354–427 7–10 18–22 — — — — 62 | CL Series Heat Pumps — 8733838716 (2024/05)
  • Page 63 20–24 155–188 335–406 14–16 39–44 90° 114–146 330–403 9–10 20–24 — — — — 116–150 381–469 11–16 20–23 — — — — 100° 116–149 374–456 8–10 20–24 — — — — | 63 CL Series Heat Pumps — 8733838716 (2024/05)
  • Page 64 19–23 145–155 354–374 18–19 37–41 90° 112–129 356–374 8–11 19–23 — — — — 116–133 436–454 16–19 18–22 — — — — 100° 114–131 404–422 8–11 18–22 — — — — 64 | CL Series Heat Pumps — 8733838716 (2024/05)
  • Page 65 21–25 131–141 334–354 17–18 35–39 90° 121–137 338–362 8–12 21–25 153—163 356—376 9—10 39—43 124–140 414–438 17–20 20–24 — — — — 100° 123–139 383–407 8–11 20–24 — — — — | 65 CL Series Heat Pumps — 8733838716 (2024/05)
  • Page 66 19–23 145–165 364–384 13–14 37–41 90° 116–132 352–372 8–11 20–24 157—177 379—399 9—10 39—43 118–134 417–437 12–15 19–23 — — — — 100° 118–134 398–418 8–11 19–23 — — — — 66 | CL Series Heat Pumps — 8733838716 (2024/05)
  • Page 67 104–132 333–405 8–11 21–25 153—187 377—464 9—11 44—52 105–135 382–466 10–15 20–24 — — — — 100° 105–134 376–455 8–11 20–24 — — — — Table 18 Operating Temperatures and Pressures | 67 CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 68: Water-Side Pressure Drop Table

    CL030 CL036 CL042 11.0 11.7 CL048 12.0 CL060 10.0 15.0 CL070 12.0 18.0 12.0 Note: All values are based upon pure water at 70° F. Table 19 Water-Side Pressure Drop Table 68 | CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 69: Compressor Characteristics

    4.91 — 208–230/1/60 0.336 0.921 — — — 80µF/370V 208–230/3/60 — — 0.542 — CL070 460/3/60 — — 2.161 — 575/3/60 — — 4.91 3.75 4.91 — Table 20 Compressor Characteristics | 69 CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 70: Corner Weights (Horizontal Cabinets Only)

    60.4 90.6 85.0 60.4 60.2 CL070 HZ 134.4 38.6 41.1 27.3 27.4 41.1 38.6 27.4 27.3 *The front is the control box end of the unit. Table 21 Corner Weights (HZ) 70 | CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 71: Model 24 Thermistor (Freeze Sensor) Test Values

    Table 22 Model 24 Thermistor (Freeze Sensor) Test Values 19.90K 17.44K 15.31K 13.48K 11.88K 10.50K 9298 8250 7331 6532 5826 5209 4663 4182 3757 3381 3047 2750 2486 2251 2041 1854 | 71 CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 72: Wiring Diagrams

    21.1 Single-Stage, Single-Phase, Standard Unit with Permanent Split Capacitor (PSC) Motor Fig. 29 Single-Stage, Single-Phase, Standard Unit with PSC Motor FOR REFERENCE ONLY Actual unit wiring may vary from this example. Always refer to the wiring diagram attached to the unit. 72 | CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 73: Single-Stage, Single-Phase, Standard Unit With Constant Torque (Ct) Motor

    21.2 Single-Stage, Single-Phase, Standard Unit with Constant Torque (CT) Motor Fig. 30 Single-Stage, Single-Phase, Standard Unit with CT Motor FOR REFERENCE ONLY Actual unit wiring may vary from this example. Always refer to the wiring diagram attached to the unit. | 73 CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 74: Single-Stage, Single-Phase, Standard Unit With Constant Airflow (Ca) Motor

    21.3 Single-Stage, Single-Phase, Standard Unit with Constant Airflow (CA) Motor Fig. 31 Single-Stage, Single-Phase, Standard Unit with CA Motor FOR REFERENCE ONLY Actual unit wiring may vary from this example. Always refer to the wiring diagram attached to the unit. 74 | CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 75: Single-Stage, Single-Phase Unit With Optional Components And Psc Motor

    Fig. 32 Single-Stage, Single-Phase Unit with Optional Components and PSC Motor FOR REFERENCE ONLY Actual unit wiring may vary from this example. Always refer to the wiring diagram attached to the unit. | 75 CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 76: Single-Stage, Single-Phase Unit With Optional Components And Ct Motor

    Fig. 33 Single-Stage, Single-Phase Unit with Optional Components and CT Motor FOR REFERENCE ONLY Actual unit wiring may vary from this example. Always refer to the wiring diagram attached to the unit. 76 | CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 77: Single-Stage, Single-Phase Unit With Optional Components And Ca Motor

    Fig. 34 Single-Stage, Single-Phase Unit with Optional Components and CA Motor FOR REFERENCE ONLY Actual unit wiring may vary from this example. Always refer to the wiring diagram attached to the unit. | 77 CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 78: Single-Stage, Single-Phase Unit With Ct Motor And Electric Heat

    Fig. 35 Single-Stage, Single-Phase Unit with CT Motor and Electric Heat FOR REFERENCE ONLY Actual unit wiring may vary from this example. Always refer to the wiring diagram attached to the unit. 78 | CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 79: Single-Stage, Single-Phase Unit With Ca Motor And Electric Heat

    Fig. 36 Single-Stage, Single-Phase Unit with CA Motor and Electric Heat FOR REFERENCE ONLY Actual unit wiring may vary from this example. Always refer to the wiring diagram attached to the unit. | 79 CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 80: Single-Stage, Single-Phase Unit With Optional Components, Ct Motor, And Electric Heat

    Fig. 37 Single-Stage, Single-Phase Unit with Optional Components, CT Motor, and Electric Heat FOR REFERENCE ONLY Actual unit wiring may vary from this example. Always refer to the wiring diagram attached to the unit. 80 | CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 81: Components, Ca Motor, And Electric Heat

    Fig. 38 Single-Stage, Single-Phase Unit with Optional Components, CA Motor, and Electric Heat FOR REFERENCE ONLY Actual unit wiring may vary from this example. Always refer to the wiring diagram attached to the unit. | 81 CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 82: Single-Stage, Three-Phase, Standard Unit With Psc Motor

    21.11 Single-Stage, Three-Phase, Standard Unit with PSC Motor Fig. 39 Single-Stage, Three-Phase, Standard Unit with PSC Motor FOR REFERENCE ONLY Actual unit wiring may vary from this example. Always refer to the wiring diagram attached to the unit. 82 | CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 83: Single-Stage, Three-Phase, Standard Unit With Ct Motor

    21.12 Single-Stage, Three-Phase, Standard Unit with CT Motor Fig. 40 Single-Stage, Three-Phase, Standard Unit with CT Motor FOR REFERENCE ONLY Actual unit wiring may vary from this example. Always refer to the wiring diagram attached to the unit. | 83 CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 84: Single-Stage, Three-Phase, Standard Unit With Ca Motor

    21.13 Single-Stage, Three-Phase, Standard Unit with CA Motor Fig. 41 Single-Stage, Three-Phase, Standard Unit with CA Motor FOR REFERENCE ONLY Actual unit wiring may vary from this example. Always refer to the wiring diagram attached to the unit. 84 | CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 85: Single-Stage, Three-Phase Unit With Optional Components And Psc Motor

    Fig. 42 Single-Stage, Three-Phase Unit with Optional Components with PSC Motor FOR REFERENCE ONLY Actual unit wiring may vary from this example. Always refer to the wiring diagram attached to the unit. | 85 CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 86: Single-Stage, Three-Phase Unit With Optional Components And Ct Motor

    Fig. 43 Single-Stage, Three-Phase Unit with Optional Components with CT Motor FOR REFERENCE ONLY Actual unit wiring may vary from this example. Always refer to the wiring diagram attached to the unit. 86 | CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 87: Single-Stage, Three-Phase Unit With Optional Components And Ca Motor

    Fig. 44 Single-Stage, Three-Phase Unit with Optional Components with CA Motor FOR REFERENCE ONLY Actual unit wiring may vary from this example. Always refer to the wiring diagram attached to the unit. | 87 CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 88: Dimensional Drawings

    Return) Table 23 Vertical (VT) Unit Dimensions • Specifications subject to change without notice. • All dimensions within ±0.125". • Overall unit dimensions do not include filter rack or duct flanges. 88 | CL Series Heat Pumps — 8733838716 (2024/05)
  • Page 89 Dimensional Drawings Fig. 45 Vertical (VT) Unit Drawings | 89 CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 90: Vertical (Vt) Cabinet Options Dimensions

    • Filter rack dimensions does not include 1" duct flange. • 2" filter racks can accept either a 1" or 2" filter. • 4" filter racks can accept either a 2" or 4" filter. 90 | CL Series Heat Pumps — 8733838716 (2024/05)
  • Page 91 Dimensional Drawings Fig. 46 Vertical Cabinet Options Drawing | 91 CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 92: Horizontal (Hz) Unit Dimensions

    • All dimensions within ±0.125". • Overall unit dimensions do not include filter rack or duct flanges. • Unit sizes 015–070 can be field converted between end blow and straight-through supply air configurations. 92 | CL Series Heat Pumps — 8733838716 (2024/05)
  • Page 93 Dimensional Drawings Fig. 47 Horizontal (HZ) Units Dimensional Drawings | 93 CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 94: Horizontal (Hz) Cabinet Options Dimensions

    • Filter rack dimensions does not include 1" duct flange. • 2" filter racks can accept either a 1" or 2" filter • 4" filter racks can accept either a 2" or 4" filter 94 | CL Series Heat Pumps — 8733838716 (2024/05)
  • Page 95 Dimensional Drawings Fig. 48 Horizontal (HZ) Cabinet Options Drawing | 95 CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 96: Service Clearance

    Note: The local electric codes may require 36" or more clearance at the electrical control box Motor access clearance 18” Minimum 24” Optimum Fig. 49 Vertical and Horizontal Cabinet Service Clearance 96 | CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 97: Terminology

    Decommissioning — Means the final shut-down and removal from operation or usage of a product or piece of equipment containing fluorinated greenhouse gases. Discharge Pressure — Referring to the pressure leaving compressor. | 97 CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 98: Check-Out Sheet

    Source Fluid Type: Fluid Flow (gpm)*: Fluid-Side Pressure Drop*: Suction Pressure (psig)*: Discharge Pressure (psig)*: Suction Temperature*: Discharge Temperature*: Suction Superheat*: Entering TXV/Cap Tube Temperature*: Liquid Subcooling*: * Required for Troubleshooting ONLY 98 | CL Series Heat Pumps — 8733838716 (2024/05)

  • Page 99: Notes

    Notes 25 Notes | 99 CL Series Heat Pumps — 8733838716 (2024/05)
  • Page 100 Additional Product Information Page To see additional product information and documentation, please visit the product page: www.bosch-homecomfort.com/us/ or scan the QR code below. Bosch Thermotechnology Corp. 65 Grove Street Watertown, MA 02472 Tel: +1 (800) 283-3787 Fax: +1 (603) 965-7568...

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