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CellarCool CM2500 Technician Manual

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Enlarged version
CM2500
VERSION 2
TECHNICIAN'S MANUAL
NOTICE: To activate the split system warranty,
the installing certified HVAC/R service tech
must complete the split system warranty
checklist and send back to CellarCool.

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Summary of Contents for CellarCool CM2500

  • Page 1 CM2500 VERSION 2 TECHNICIAN’S MANUAL NOTICE: To activate the split system warranty, the installing certified HVAC/R service tech must complete the split system warranty checklist and send back to CellarCool.
  • Page 2 CellarCool. Every effort has been made to ensure that the information in this manual is accurate. CellarCool is not responsible for printing or clerical errors.

  • Page 3: Table Of Contents

    CM2500 Wiring Diagram ........29...
  • Page 4 WARNING The evaporator unit (fan coil unit) must be insulated using the insulation blanket provided in accordance with this manual. Refer to the insulation blanket installation instructions. Failure to follow the instructions provided will result in a poor vapor barrier, water damage, rust, and system corrosion which will void the warranty on your unit.

  • Page 5: Introduction

    INTRODUCTION Customer Service Thank you for purchasing a CellarCool cooling system. We strive to provide the highest-quality products and the best possible customer service. If you have any questions about your system, please call us at 1-855-235-5271 or visit cellarcool.com.

  • Page 6: Quick Start Guide

    24-volt wires running from the evaporator unit to the condensing unit.) CellarCool units utilize a solenoid valve on the liquid line and a low-pressure switch on the suction line. When the thermostat calls for cooling, the solenoid valve opens, permitting the flow of refrigerant. The low-pressure switch then signals the compressor to cycle on.

  • Page 7: Before You Start

    7. CellarCool requires that all split systems be installed by a certified HVAC-R technician only. NATE or equivalent is recommended. If you encounter a problem with your CellarCool system, please refer to the Troubleshooting Guide. If you have any further questions or concerns, or need assistance, please contact CellarCool’s Customer Service at 1-800-343-9463. Please be sure all testing has been completed prior to contacting Customer Service.

  • Page 8: Receiving & Inspecting The System

    Allow the condensing unit to sit for 24 hours prior to start-up. The condensing unit can be placed in the installation location, piped and evacuated during this time. Note: CellarCool units are manufactured in the USA and tested prior to shipment. •...

  • Page 9: Quick Reference Guide

    Supply and Return Grille (Paintable) Mounting Bracket (Paintable) Top View Electrical Knockout Options Line Set Knockout Options Note: The unit comes in black. The mounting bracket and front grille are paintable, enabling you to match your desired color. www.cellarcool.com | Page 7...

  • Page 10: Knockout Locations

    KNOCKOUT LOCATIONS 22.05” 12.74” 1” Top View 11.34” 10.34” 1.17” 1.17” 1” 11.34” 22.05” .88” 1.43” .88” 3.5” 2” 15.67” 9.03” 1.71” 1.71” 1” 1.5” 1.5” .32” Side View 1 Side View 2 11.08” 11.08” 10.08” 7.87” 7.55” 11.34” 22.05” 1.43”...

  • Page 11: Display Layout & Specifications

    Evaporator unit (fan coil unit) is installed through the cellar ceiling. Condensing unit is Installation installed up to 100 line ft. from the evaporator unit. Thermostat Remote digital display 55°F max temperature differential between the cellar and condensing unit intake Temp. Delta temperature Warranty 2 years (parts and labor) www.cellarcool.com | Page 9...

  • Page 12: Condensing Unit

    CM2500 CONDENSING UNIT QUICK VIEW* Cold Weather Start Kit Electrical Box Electrical Box Low Pressure Switch Cut Out: 5 psi Cut In: 20 psi Fan Cycling Switch Cut Out: 75 psi Cut In: 120 psi Receiver Liquid Line Service Valve...
  • Page 13 CM2500 COLD WEATHER START KIT CONDENSING UNIT QUICK VIEW Thermal Switch Receiver Heater Enclosed Power Compressor Contactor COLD WEATHER START KIT Relay (Magnecraft Relay) ELECTRICAL SET UP Bypass Timer Start Assist (Magnecraft Relay) www.cellarcool.com | Page 11...
  • Page 14 SPLIT SYSTEM CHECK LIST In order to activate the warranty for this product, the information here must be complete and accurate. Any incorrect or omitted information will result in a return trip by the installing technician at their cost. DATA RECORDINGS Note: All readings need to be taken while the compressor is running.

  • Page 15: Items To Route Before Installing The Evaporator Unit

    Route the drain line from a proper discharge location to the evaporator unit installation location (see page 21 for more drain line information). Route the power cable wiring to the evaporator unit installation location. ITEMS TO ROUTE °F LINE SET DISPLAY CABLE BOTTLE PROBE DRAIN LINE POWER CABLE www.cellarcool.com | Page 13...

  • Page 16: Selecting Mounting Option

    SELECTING MOUNTING OPTION Minimum Tools Needed: T-square Hammer #2 Phillips-head screwdriver Locate the desired installation location. Using a stud finder, locate the ceiling joists on either side of the center point. Cut and frame an opening in the ceiling measuring 12” x 22.75”. Make sure the framing is sufficient to support the weight of the cooling unit.

  • Page 17: Mounting The Evaporator Unit

    MOUNTING BRACKET Secure the unit’s mounting bracket to the opening using the twelve (12) supplied 21/2” Phillips-head screws. Routed Items: 1. Power cable wiring 2. Controller & bottle probe wiring 3. Line set 4. Drain line www.cellarcool.com | Page 15...

  • Page 18: Evaporator Unit Preparation

    EVAPORATOR UNIT PREPARATION Unscrew the sixteen (16) screws and remove the top Remove the knockout(s) that you will be using to route access panel. the line set, power wires, display cable, bottle probe, and drain line. 1. Power cable 2. Controller & bottle probe wiring Locate the white zip tie securing the drain line tube to the suction line and cut it.

  • Page 19: Evaporator Unit Installation

    To prevent oxidation, purge the system with nitrogen. BRAZE LINE SET USING COUPLING Braze the copper tubing to the connections on the Slide the electrical panel up and out of the unit. evaporator unit. www.cellarcool.com | Page 17...
  • Page 20 Connect the green wire to the green wire, the black wire to the black wire, and the white wire to the white wire. Connect the end of the bottle probe cable to the circular connector on the exterior of the electrical box.

  • Page 21: Insulation Blanket Installation

    CM2500 INSULATION BLANKET INSTALLATION *Tools required: spray adhesive, utility knife, cork tape, foil tape CM2500 blanket dimensions 68” 22” Insulation Blanket Insulation Blanket 11.25” 11” CM3500/CM5000 blanket dimensions 102” 35.75” Insulation Blanket Insulation Blanket 14.25” 14.25” 1. Once mounting bracket location has been selected and installed, proceed to the insulation blanket installation.
  • Page 22 INSULATION BLANKET INSTALLATION, CONTINUED 1. Spray the top of the evaporator unit with spray adhesive. (See spray adhesive directions for proper tack time before proceeding to step 8.) 2. Set piece (B) in place by pressing firmly on all surfaces of the insulation that come in contact with the top of the evaporator unit (see illustration).

  • Page 23: Drain Line

    Do not route the drain line more than 15 vertical ft. Proper Discharge Location WRONG: Drain line is under water. To prevent mold from growing, allow the drain line to hang above the water line. www.cellarcool.com | Page 21 www.whisperkool.com | Page 21...

  • Page 24: Liquid Thermostat (Bottle Probe)

    LIQUID-MEASURING THERMOSTAT SYSTEM (BOTTLE PROBE) CellarCool cooling units come with a liquid-temperature-measuring thermostat. The self-calibrating probe contains a sensor chip, which communicates back and forth with the thermostat. This results in a consistent temperature setting and accuracy. Wine should be kept at a very precise, controlled temperature and humidity. By measuring the liquid temperature rather than air, the unit will operate 75–80% of the time.

  • Page 25: Remote Display Installation

    1. Place the bracket on the wall. Use a level to ensure that the bracket is level. Using a pencil, mark the four screw holes in the rear of the bracket. NOTE: Cut hole in the location shown for routing the display cable. www.cellarcool.com | Page 23...
  • Page 26 WALL MOUNT BRACKET INSTALLATION, CONTINUED 2. Using a drill with a 3/16” bit, drill four holes in the drywall for the screws. Insert the four (4) provided drywall anchors into the drywall, then tap them in with a hammer until they are flush with the wall. 3.
  • Page 27 5. Place the display on the wall mount bracket as shown, attaching the back of the display panel to the magnets on the mounting bracket. Make sure that the alignment tab on the back of the display panel sits in the notch on the bottom of the bracket. www.cellarcool.com | Page 25...
  • Page 28 FLUSH MOUNT BRACKET INSTALLATION 1. Square the flush mount template on the wall 2. Peel the backing off the template and stick it to the wall, using a level. Then draw a 3” line along the aligning the bottom edge with the line drawn in Step 1. bottom edge of the template.
  • Page 29 5. Remove the backing from the double-sided tape on the flush mount bracket. 6. Align magnets with previously drilled holes. Make sure the cut-out portion of the bracket (circled below) is on the bottom. Press the bracket firmly against the wall. WALL HOLE CUTOUT www.cellarcool.com | Page 27...
  • Page 30 FLUSH MOUNT BRACKET INSTALLATION, CONTINUED 7. Connect the end of the display cable to the JST connector on the display panel. DISPLAY BRACKET 8. Place the display on the flush mount bracket as shown, attaching the back of the display panel to the magnets on the mounting bracket.

  • Page 31: Cm2500 Wiring Diagram

    CM2500 CM2500 WIRING DIAGRAM ELIWELL RTN400 KDT PLUS DISPLAY Pb3 CPB KEYB LINE NEUTRAL OUT 2 OUT 3 OUT 4 NEUTRAL LINE OUT 1 BLACK BLUE BLACK BLACK BLACK BLACK UNIT GROUND RESERVOIR WHITE STUD CONDENSATE PUMP GREEN BLUE BLACK...

  • Page 32: Wiring Diagram

    CM2500 WITH COLD WEATHER START KIT WIRING DIAGRAM ELIWELL RTN400 KDT PLUS DISPLAY Pb3 CPB KEYB WHITE LINE NEUTRAL OUT 2 OUT 3 OUT 4 NEUTRAL LINE OUT 1 BLACK BLACK BLACK BLACK BLUE RESERVOIR UNIT GROUND STUD BLUE WHITE...

  • Page 33: Preparing The Condensing Unit

    Provide a weatherproof disconnect for the condensing unit if it is located outside. Power surges and spikes can damage sensitive electrical equipment. CellarCool recommends plugging the unit into a surge protector or power conditioner in order to protect your system. As outlined in our terms and conditions, power surges and spikes are not covered under warranty.
  • Page 34 3-10ft >10ft Horizontal Tubing 3/8” CM2500 Vertical Rise 3/8” The refrigerant drier and the sight glass shall be installed (in that order) in the direction of the refrigerant flow in the liquid line between the condensing unit and evaporator unit (fan coil unit). Enclose the suction line in cellular insulation with 1/2” wall thickness, such as Armaflex or a similar brand, in order to reduce heat transfer and prevent the suction line from sweating.

  • Page 35: Cm2500 Condensing Unit Wiring Diagram

    CM2500 CM2500 CONDENSING UNIT WIRING DIAGRAM For Systems Manufactured 01-22-16 or Later White (D) Black (B) Black (A) Black Black/White Black Green Black Blue HEATER Blue Black Blue (E) White (C) (115V) (GREEN) FAN (CONDENSER) START CAPACITOR RELAY - CURRENT...

  • Page 36: Start Kit Wiring Diagram

    CONDENSING UNIT WITH COLD WEATHER START KIT WIRING DIAGRAM For Systems Manufactured 01-22-16 or Later Purple (12) Grey (13) COIL 24V Relay Blue (10) White (D) Red (6) Red (7) Red (8) Black (B) Red (9) Black (B) Blue (10) White (5) Black (A) Black (2)

  • Page 37: Line Set Piping Diagrams

    Option 1 the condensing unit below or leveled to the coil. Option 2 applies when the system is installed with the condensing unit at a higher elevation than the coil. Option 2 www.cellarcool.com | Page 35...

  • Page 38: Installing The Condensing Unit

    INSTALLING THE CONDENSING UNIT Refrigerant Piping Procedure When installing/routing the line set, cap both ends of each tube to prevent material or debris from entering the tubing. Prior to connecting the piping, loosely connect the refrigerant gauges to the service ports of the suction and liquid line service valves.
  • Page 39 Confirm that the sight glass has no bubbles and the ambient temperature around the condensing unit is not getting excessively hotter. Confirm that both king valves have been back-seated and the nuts have been installed back on the king service ports. Insulate the 3/8” suction line with cork tape. www.cellarcool.com | Page 37...

  • Page 40: System Operation

    SYSTEM OPERATION Initial Start-Up Operation in Low Ambient Temperatures When the unit is plugged in and power is sent to the If the condensing unit is installed outdoors (where it will be controller, a beep will sound, confirming that the control- exposed to low ambient temperatures), the condenser fan will ler is getting power.
  • Page 41 Anti-Frost Cycle running °F Scroll Button Return to Previous Menu Change Set Point View/Change Set Point Scroll Button Enter User Menu Change Set Point (hold for 3 sec) Unlock Button Power On/Off (hold for 1 sec) www.cellarcool.com | Page 39...

  • Page 42: Controller Functions

    CONTROLLER FUNCTIONS Button Normal Functions °F INITIAL STARTUP When the unit is plugged in and power is sent to the controller, a beep will sound, confirming that the controller is getting power. All LEDs on the display will blink three times. Three dashes will then appear on the screen.
  • Page 43 The alarm icon is shown when the unit encounters an issue that needs attention. Alarm codes are explained on the following page. All temperature-related alarms are blocked for the first 10 hours after the unit is plugged in to allow the system to stabilize and acclimate to the new environment. www.cellarcool.com | Page 41...
  • Page 44 ALARM CODES Code Cause Solution The following alarm codes will be displayed on the screen along with the alarm icon Bottle probe is not connected Attach bottle probe to circular connector (see instructions on page 18) Faulty bottle probe connection Locate faulty bottle probe connection by inspecting all wiring connections between the bottle probe and the circuit board.
  • Page 45 58°F, and the known temperature is 55°F, you can set the CA1 parameter to -3°F to match the known temperature. PA2 - installer menu This menu is only accessible using a password and is not available for adjustment. www.cellarcool.com | Page 43...
  • Page 46 NOTES 070517 Page 44 | 1-855-235-5271...

  • Page 47: Troubleshooting Guide

    (fan coil unit) could be low on refrigerant. If so, con- tact your installing technician to assist with troubleshooting. System runs constantly Possible cause Solution Leaky door seal or poorly insulated cellar Fix leaky door seal and insulate cellar in accordance with this manual www.cellarcool.com | Page 45...
  • Page 48 Unit leaks water Possible cause Solution Evaporator unit (fan coil unit) is not level Evaporator unit (fan coil unit) should be level on the wall to prevent leaking Drain line clogged or kinked Check drain line to make sure water can flow freely Drain is clogged, preventing water from escaping Disconnect drain and clear it out;...

  • Page 49: Maintenance Schedule

    1. Use a vacuum with brush attachment to clean coils; be careful not to crush coil fins when cleaning 2. Change duct filter if the system is ducted Annually 1. Inspect for corrosion 2. Check wiring connections and integrity of cords 3. Pour a 50/50 bleach solution into the drain line every spring www.cellarcool.com | Page 47...

  • Page 50: Bypass Test Procedure

    BYPASS TEST PROCEDURE NOTE: If instructed by a CellarCool representative, follow the directions below to test the cooling unit using the bypass plug provided in the accessory kit. 1. Disconnect power from the evaporator unit. 2. Loosen the two (2) screws on the front of the grille or duct plenum.

  • Page 51: Technical Assistance & Accessories

    CM2500 TECHNICAL ASSISTANCE CellarCool Customer Service is available Monday through Friday from 6:00 a.m. to 4:00 p.m. Pacific Standard Time. The appointed customer service representative will be able to assist you with your questions and warranty information more effectively if you provide them with the following: •...

  • Page 52: Installation Terms And Conditions

    CellarCool warrants against defects in material and workmanship as follows: 1. LABOR - For a period of two (2) years commencing on the date of purchase, CellarCool will, at its option and discretion, reimburse up to $250 to the End User for cost incurred for servicing, repairing, removing or installing warranty parts.
  • Page 53 8. This limited warranty is voided if installed in an enclosure of insufficient design that does not follow the Product installation requirements stated herein and in the owner’s manual. 9. Removing the rivets from the Product’s unit housing without prior authorization from CellarCool voids this limited warranty.
  • Page 54 E. End User is responsible for all costs incurred for the installation and/or removal of the Product, or any part thereof, unless such cost has been agreed by CellarCool to be a warranty repair prior to the work being performed.
  • Page 55 Conditions of Sale shall be interpreted as through drafted jointly by CellarCool and Purchaser. Any dispute will be resolved by the courts in and for the County of San Joaquin, State of California, and all parties, CellarCool, Purchaser and End User, hereby irrevocably submit to the personal jurisdiction of such courts for that purpose.
  • Page 56 Web: www.cellarcool.com B. Technical Assistance. CellarCool Customer Service is available Monday through Friday from 6:30 a.m. to 4:00 p.m. PST. The Customer Service representative will be able to assist you with your questions and warranty information more effectively if you provide them with the following: 1.
  • Page 57 CellarCool 1738 E. Alpine Ave Stockton, CA 95205 1-855-235-5271 www.cellarcool.com...

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