Mestek SpacePak ESP-JV Series Installation, Operation & Maintenance Manual
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Mestek SpacePak ESP-JV Series Installation, Operation & Maintenance Manual

Central air conditioning series 2 to 5 tons fan coil unit/air supply components
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MODEL
ESP-JV SYSTEM
INSTALLATION,
OPERATION
& MAINTENANCE
MANUAL
Central Air Conditioning Series
2 to 5 Tons
Fan Coil Unit/Air Supply
Components
SpacePak System Design........................................
Code Compliance.....................................................
Air Distribution Requirements ..................................
Air Distribution Components.....................................
Shipment of Unit.......................................................
Step 1: Locating the Unit..........................................
Step 2: Cutting Return Air Opening..........................
Step 4: Setting the Unit.............................................
Step 5: Connecting Refrigerant Lines....................... 8
Step 7: Wiring the Unit...........................................10-15
IN UNITED STATES: 260 NORTH ELM ST. WESTFIELD, MA 01085 (413) 564-5530/FAX (413) 564-5815
IN CANADA: 7555 TRANMERE DRIVE, MISSISSAUGA, ONTARIO, L5S 1L4 (905) 670-5888/FAX (905) 670-5782
2
Sequence of Operation............................................. 20
2
Prior to Start-Up ....................................................... 20
2
System Start-Up & Adjustments............................... 20
3
Charging Cooling Only Systems............................... 24
5
6
Before Each Cooling Season.................................... 25
7
If System Fails to Operate........................................ 25
8
Troubleshooting Guide.......................................... 26-29
8
Service/Troubleshooting Form.................................. 31
Parts List................................................................... 32
WARRANTY INFORMATION......................Back Cover
9
®
COPYRIGHT
2017
ESPJV2-0218
W30-WG0890

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  • Page 1: Table Of Contents

    ESPJV2-0218 W30-WG0890 MODEL ESP-JV SYSTEM INSTALLATION, OPERATION & MAINTENANCE MANUAL Central Air Conditioning Series 2 to 5 Tons Fan Coil Unit/Air Supply Components SECTION 1: INTRODUCTION SECTION 3: START UP & OPERATION SpacePak System Design........Sequence of Operation..........20 Code Compliance............. Prior to Start-Up ............

  • Page 2: Section 1: Introduction

    Section 1: INTRODUCTION CODE COMPLIANCE The following terms are used throughout this Fan coil unit installation must conform to the require- manual to bring attention to the presence of potential ments of the local authority having jurisdiction or, in the hazards or to important information concerning the absence of such requirements, to the National Board of product:...

  • Page 3: Air Distribution Components

    RETURN AIR BOx (SPC-1D, AC-RBF-3, SPC-3D): R8 SUPPLY TUBING (AC-ST8-50): Flexible, R8 insulated, Each includes filter grill with metal frame, permanent 2" I.D. and 6-1/4" O.D. Each section is 50 feet long. filter, and 2 clamp bands. SPC-1D is for ESP-2430JV. AC- INSTALLATION KITS: Contains a specified amount RBF-3 is for ESP-3642JV and SPC-3D is for ESP-4860JV.
  • Page 4 Plenum Duct For systems designed with a bullhead tee installed as on The plenum duct can be run in practically any location Unit No. 1 (Figure 1.3), the best results are obtained if not accessible for the attachment of the supply tubing (see more than 60% of the total number of system outlets are suggested layouts in Figure 1.2).

  • Page 5: Shipment Of Unit

    Supply Tubing In the case of two-story or split-level applications, supply tubing may run from one story to another. It is small enough to go in stud spaces, but this is often difficult in older homes because of hidden obstructions in stud spaces.

  • Page 6: Section 2: System Installation

    SECTION 2: SYSTEM INSTALLATION NOTICE: Before proceeding with the installa- When selecting a location, consider the location of the tion, we recommend reading through this sec- unit in relation to the return air box or filter box as shown tion of the manual for an overall understanding in Figures 2.3, 2.4.

  • Page 7: Step 2: Cutting Return Air Opening

    FIGURE 2.3: TYPICAL CLOSET/UTILITY ROOM INSTALLATION FIGURE 2.4: TYPICAL CLOSET INSTALLATION STEP 2: CUTTING RETURN AIR OPENING Select the exact location for the return air box. Avoid Where joists are 16" on center, the return air box should installing the box in the dining room, living room, kitchen, fit between successive joists.

  • Page 8: Step 3: Attaching Supply Air Plenum Adaptor

    STEP 3: ATTAChING SUPPLY AIR PLENUM ADAPTOR Refer to Figure 2.6 and duct installation instructions supplied with fan coil unit. STEP 4: SETTING ThE UNIT Construct a platform for the fan coil unit, as shown in Figure 2.7. The platform can be constructed of 2x4 (minimum), 2x6, 2x8, or 2x10 lumber.

  • Page 9: Step 6: Installing The Condensate Trap & Line

    FIGURE 2.7: MOUNTING PLATFORMS FOR VERTICAL INSTALLATIONS STEP 6: INSTALLING ThE CONDENSATE TRAP & LINE NOTICE: It is a requirement of the International NOTICE: Never connect condensate line to a closed Mechanical Code (307.2.3) to install a secondary drain system. drain or and auxiliary drain pan where damage to any building components will occur as a result of over- flow from the equipment drain pan or stoppage in the...

  • Page 10: Step 7: Wiring The Unit

    STEP 7: WIRING ThE UNIT Turn off electrical power supply Locate the room thermostat on a wall near the return air before servicing. Contact with live electric compo- box, between 40" to 48" from the floor. Connect the low- voltage thermostat wiring from the room thermostat to the nents can cause shock or death.
  • Page 11 FIGURE 2.9: MODEL ESP-JV STANDARD WIRING SChEMATIC...
  • Page 12 FIGURE 2.10: SINGLE STAGE AIR CONDITIONING ONLY WIRING DIAGRAM...
  • Page 13 FIGURE 2.11: SINGLE STAGE AIR CONDITIONING WITh hW COIL WIRING DIAGRAM...
  • Page 14 FIGURE 2.12: TWO STAGE hEAT PUMP/AC WIRING DIAGRAM...
  • Page 15 FIGURE 2.13: TWO STAGE hEAT PUMP/AC WITh BACKUP BOILER hEAT WIRING DIAGRAM...

  • Page 16: Step 8: Installing Air Distribution Components

    STEP 8: INSTALLING AIR DISTRIBUTION COMPONENTS All plenum duct and supply tubing runs as well as room terminator locations must be in accordance with air distribution system requirements listed in Section 1 of this manual. Use a tape that meets UL181 requirements SOUND on all joints.
  • Page 17 NOTICE: Do not shorten sound attenuating tube At the plenum, all supply tubing connections must be a length. The result would be unacceptable noise. minimum of 18" from any plenum tee, plenum elbow or the fan coil unit. Push the free end of the sound attenuating tube through Individual supply tubing runs must be a minimum of the 4"...
  • Page 18 PLENUM FIGURE 2.20: CONNECTING TUBING GASKET Remove the hole cut-out from the plenum. Make sure there is no “flap” left inside plenum that could block hole during operation. FIGURE 2.21: TAKE-OFF INSTALLATION Place the plenum take-off gasket on the back side of the plenum take-off and insert the assembly into the hole in In accordance with your calculations as to requirements the plenum (see Figure 2.21).
  • Page 19 Return Air Box & Duct Installation Direct Mount Filter Box & Ductless Returns Remove the return air grill from the return air box and Center filter box over the eliptical flange of fan coil unit remove the air filter from the return air grill. (see Figure 2.26).

  • Page 20: Section 3: Start Up & Operation

    SECTION 3: START-UP & OPERATION SEQUENCE OF OPERATION NOTE: IF NO AIRFLOW DURING W OR Y CALL, POTENTIOMETER MAY BE IN “OFF” POSITION. When power is turned on and thermostat fan switch is TURN CW TO AChIEVE AIRFLOW set to ON and the cooling indicator is set to OFF, the c.
  • Page 21 OPERATING SETPOINTS FIGURE 3.2 SpacePak XXX-2430JV System Curves 5.0VDC 4.0VDC 3.0VDC 2.5VDC 2.0VDC Nominal operating 1.7VDC point, 550 CFM at 1.2" 1.5VDC 1.3VDC 1.0VDC 0 0 . 0.0 Airf Airfl Airflo Airflow Airflow Airflow C Airflow CF Airflow CFM Airflow CFM FIGURE 3.21 CFM's @ Speed Control Setting (VDC) -2430JV Static P...
  • Page 22 FIGURE 3.3 SpacePak XXX-3642JV System Curves 5.0VDC 4.0VDC 3.0VDC 2.5VDC N N o Nomi Nomin Nomina Nominal Nominal Nominal o Nominal op Nominal ope Nominal oper Nominal opera Nominal operat Nominal operati Nominal operatin Nominal operating Nominal operating Nominal operating p Nominal operating po Nominal operating poi Nominal operating poin...
  • Page 23 FIGURE 3.4 SpacePak XXX-4860JV System Curves 5.0VDC 4.0VDC 3.0VDC N N o Nomi Nomin Nomina Nominal Nominal Nominal o Nominal op Nominal ope Nominal oper Nominal opera Nominal operat Nominal operati Nominal operatin Nominal operating Nominal operating Nominal operating p Nominal operating po Nominal operating poi Nominal operating poin...

  • Page 24: Charging Cooling Only Systems

    NOTICE: Do not introduce refrigerant liquid to system 5. Check that system static pressure is within acceptable through suction port. Liquid in the suction line may limits (minimum 1.2" WC - ,maximum 1.5" WC). You damage the compressor. can use a U-tube manometer to check the external sta- tic pressure on the duct system.

  • Page 25: Section 4: Maintenance

    FIGURE 3.2 C. Supply Tubing Length: An outlet with a supply tubing length of 15 feet is considered one, fully DESIRED NUMBER TERMINAL - ORIFICE opened outlet. For other lengths refer to Figure 3.3 for OF TERMINALS* COMBINATION adjustment factors. (1) .5 (1) .35 FIGURE 3.3...

  • Page 26: Troubleshooting Guide

    TROUBLESHOOTING GUIDE CONDITION: ESP-JV & CONDENSING UNITS RUN, BUT COOLING INSUFFICIENT POSSIBLE CAUSE VERIFICATION SOLUTION Low Suction Pressure Check blower motor as described on If defective, replace motor. page 30 in this manual. Check that filter in return air box is Clean air filter.
  • Page 27 CONDITION: ESP-JV UNIT & CONDENSING UNIT WILL NOT START POSSIBLE CAUSE VERIFICATION SOLUTION Thermostat Not Level Check level of thermostat If necessary, level thermostat. Defective Thermostat With volt meter, check resistance of If resistance, thermostat is O.K. thermostat contacts. If no resistance, replace thermostat. Loose Low Voltage Wiring Check all wiring connections for Tighten all loose connections.
  • Page 28 CONDITION: ESP-JV UNIT WILL NOT START, BUT CONDENSING UNIT CYCLES POSSIBLE CAUSE VERIFICATION SOLUTION Incorrect Low Voltage Connections Check low voltage connections Correct low voltage connections. against wiring diagram. Loose Low Voltage Connections Check all wiring connections for Tighten all loose connections. tightness.
  • Page 29 CONDITION: SWEATING AT ESP-JV UNIT SUPPLY OUTLET POSSIBLE CAUSE VERIFICATION SOLUTION Air Leak At Supply Air Plenum Check taped joint at adaptor. Tape joint properly. Adaptor Insulation at Outlet Not Installed Check for insulation at outlet. Install insulation. CONDITION: EXCESSIVE NOISE AT TERMINATOR POSSIBLE CAUSE VERIFICATION SOLUTION...
  • Page 30 3. Check for 230v* across terminal 4 on blower relay CHECKING ESP-JV BLOWER MOTOR and terminal L1. 1. With volt meter, check voltage at terminals L1 and L2 a. If reading is 230v, blower relay is O.K. on line voltage terminal block. Voltage should be b.

  • Page 31: Service/Troubleshooting Form

    Service / Troubleshooting FORM “1A” Customer / Dealer Data: Refrigeration-side Data: Name: Line sizes: Liquid Suction Address: Total equivalent length of lines: Ft; Vertical Rise: @ Condensing Unit: Liquid: psi; Temp: °F; Subcool: °F Tel (day) (eve) Suction: psi; Temp: °F;...

  • Page 32: Parts List

    ITEM PART DESCRIPTION UNIT SIZE PART NUMBER ANTI-FROST SWITCH ALL SIZES W RWG PRIMARY DRAIN PAN W RWG W RWG COIL ASSEMBLY, R W RWG THERMAL EXPANSION VALVE, W RWG CHATLEFF CONNECTION W RWG TRANSFORMER ASSEMBLY ALL SIZES BLOWER ASSEMBLY ALL SIZES W RWG TERMINAL BLOCK HIGH VOLTAGE...
  • Page 33 NOTES:...
  • Page 34 NOTES:...
  • Page 36 LIMITED WARRANTY Central Air Conditioning Products The “Manufacturer” warrants to the original owner at the original installation site that the Central Air Conditioning Products (the “Product”) will be free from defects in material or workmanship for a period not to exceed one (1) year from the startup or eighteen (18) months from date of shipment from the factory, whichever occurs first.

This manual is also suitable for:

Spacepak esp-2430jvSpacepak esp-3642jvSpacepak esp-4860jvSpacepak esp-jv

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