Related Manuals for RefPlus EH Series
Summary of Contents for RefPlus EH Series
- Page 1 INSTALLATION, OPERATION AND MAINTENANCE MANUAL INDUSTRIAL WALK-IN EVAPORATORS EH-EI-EQ-EX-LQ-DQ SERIES AWEF REGISTERED...
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Page 3: Table Of Contents
TABLE OF CONTENTS 1. SAFETY CONSIDERATIONS ...................... 2. INTRODUCTION .......................... 3. PRODUCT DESCRIPTION ......................4. NOMENCLATURE ........................5. HANDLING AND RIGGING ......................5.1 STANDARD UNIT WEIGHTS ..........................7 5.2 R-448A OPERATING CHARGES (LB.) ........................8 6. INSTALLATION ..........................6.1 COMPLETE PRE-INSTALLATION INSPECTION ....................9 6.2 INSTALLATION LOCATION ............................ -
Page 4: Safety Considerations
1. SAFETY CONSIDERATIONS Connections and bends are brazed with high-temperature brazing alloy. Coils are factory leak tested at 300 psig and Installing, starting up, and servicing equipment can be purged with a -40°F dew point dry air. Coils are ready for hazardous due to system pressures, electrical components HFC, HFO and CO refrigerants and are provided with sweat... -
Page 5: Nomenclature
4. NOMENCLATURE 2 3 5 0 OPTIONS A = AWEF compliant L = Low speed MODEL GENERATION 0-6 = Conventional refrigerant generation 7-9 = CO generation MODEL NUMBER / NOMINAL CAPACITY @ 10°FTD 2350 = 235 000 BTU/H 043 = 4300 BTU/H *Can vary from 2 to 4 digits DEFROST TYPE VOLTAGE... -
Page 6: Handling And Rigging
HANDLING AND RIGGING 5. HANDLING AND RIGGING Your unit is shipped with support legs and crated on a pallet. This prevents any damage to the drain pan underneath. To Good handling and rigging practices must be followed fasten the unit to the ceiling, it is recommended to leave it to protect units from damage. -
Page 7: Standard Unit Weights
STANDARD UNIT SHIPPING WEIGHTS 5.1 STANDARD UNIT SHIPPING WEIGHTS (LB.) SHIPPING SHIPPING MODEL MODEL WEIGHT WEIGHT SHIPPING SHIPPING SHIPPING MODEL MODEL MODEL WEIGHT WEIGHT WEIGHT EQ*-05400 EQ*-04900A EQ*-06500 EQ*-05800A EHA-04500 EHE-04000 EH*-04000 EQ*-07800 EQ*-06800A EHA-05400 EHE-04800 EH*-04800 EQ*-10900 1,115 EQ*-09900A 1,115 EHA-06200 EHE-06000... -
Page 8: R-448A Operating Charges (Lb.)
OPERATING CHARGES 5.2 R-448A OPERATING CHARGES (LB.) OPERATING OPERATING MODEL MODEL CHARGE CHARGE OPERATING OPERATING OPERATING MODEL MODEL MODEL CHARGE CHARGE CHARGE EQ*-05400 13.2 EQ*-04900A 13.2 EQ*-06500 EQ*-05800A 17.61 17.61 EHA-04500 7.96 EHE-04000 11.84 EH*-04000 7.96 EQ*-07800 26.4 EQ*-06800A 26.4 EHA-05400 EHE-04800 EH*-04800... -
Page 9: Installation
• LQ & DQ models: 15 ft minimum - 35 ft maximum All RefPlus units are pressurized with dry air. A lack of pressure does not indicate a leak. Check the coil for NOTE: Units with electric defrost require a minimum possible leaks before installing or returning the unit. - Page 10 INSTALLATION 1/2 H min. 1 H recommended EQ-EX EH-EI 3’ min. 3’ min. (W for units w/electric defrost) Flow 15’ min. 35’ max. LQ-DQ 3’ min. 3’ min. (W for units w/electric defrost) Figure 2 One-evaporator clearance (H=Height of unit - W=Width of unit) 1/2 H min.
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Page 11: Connecting Drain Line
INSTALLATION 6.4 CONNECTING DRAIN LINE Drain traps on low temperature units must be outside of refrigerated enclosures. Properly protected from freezing, For all evaporators, a drain line union is recommended copper or steel pipes should be used. Food approved plastic for ease of installation and future servicing and should be can also be used for medium temperature coolers above located in close proximity to the drain pan. -
Page 12: Connecting The Expansion Valve
INSTALLATION 6.6 CONNECTING THE EXPANSION VALVE All units are supplied with a sweat expansion valve connection. Expansion valves are field supplied or may have been installed at the factory (optional). All units require the use of an externally equalized expansion valve and are provided with a 1/4"... -
Page 13: Suction Line Construction
INSTALLATION 6.8 SUCTION LINE CONSTRUCTION RECOMMENDED VELOCITY FOR GOOD OIL RETURN OF POE WITH HFC - FPM (M/S) Minimum Minimum Design Maximum Horizontal Vertical Condensate ≤ 100 (0.5) 150 (0.8) Liquid ≤ 300 (1.5) 300 (1.5) Suction 500 (2.5) 900 (4.6) 1000 (5.1) - 3000 (15.2) 4000 (20.3) Discharge... - Page 14 INSTALLATION SUCTION LINE SUCTION LINE TO COMPRESSOR TO COMPRESSOR EVAP. EVAP. RED TEE RED TEE STR. STR. ELLS ELLS U-BEND OR 2 ELLS Figure 8 Double suction riser DOUBLE RISER WHEN DOUBLE RISER NECESSARY WHEN NECESSARY MULTIPLE EVAPORATORS MULTIPLE EVAPORATORS MULTIPLE EVAPORATORS ON MULTIPLE EVAPORATORS ON STACKED ON SAME LEVEL:...
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Page 15: External Equalizer Location
INSTALLATION 6.9 EXTERNAL EQUALIZER LOCATION Wiring diagrams are shown at the end of this manual for reference only. Always refer to the wiring diagram supplied The purpose of the external equalizer is to sense the with your specific unit. pressure in the suction line at the bulb location and transmit it to the TEV diaphragm. -
Page 16: Start Up
START-UP 7. START-UP 7.4 FAN DELAY DRAIN PAN CONTROL The fan delay drain pan control senses the general coil CAUTION: Before starting unit, be sure wire fan temperature. guards are secured in place over each fan. • With temperature rise, the fan delay thermostat de- energizes the fan and energizes the electric pan heaters. -
Page 17: Defrost System
NOTE: A minimum of 3 evaporators is required for an efficient operation. Special engineering is required for a 1 or 2 evaporator configuration. Please contact RefPlus' Sales-Engineering department for proper selection. NOTE: A field-installed pressure regulating valve may be required on low temperature systems to control compressor crankcase pressure. -
Page 18: Service
SERVICE 9. SERVICE See troubleshooting chart for troubleshooting information. CAUTION: Before starting unit, be sure wire fan 9.1 INITIAL INSPECTION guards are securely fastened over each fan. After the system has been charged and has operated for at 9.3 CLEANING least two hours at normal operating conditions without any indication of malfunction, it should be allowed to operate WARNING! Before carrying out any cleaning or... -
Page 19: Troubleshooting Chart
Uneven coil 3. Defrost termination set too low. 3. Adjust defrost termination setting higher. frosting 4. Incorrect or missing distributor nozzle. 4. Add or replace nozzle with appropriate sized orifice for conditions. 11. REPLACEMENT PARTS Download the parts manual at refplus.com... -
Page 20: Evaporator Start-Up Report Form
EVAPORATOR START-UP REPORT FORM 12. EVAPORATOR START-UP REPORT FORM IMPORTANT: This startup report form must be filled out, signed and sent to RefPlus for the warranty to be honoured. 1. GENERAL INFORMATION JOB LOCATION: _____________________________________________________________________________________________________________________ _____ REFPLUS RJ No: CONTRACTOR NAME: UNIT COOLER MODEL No.:... - Page 21 ADJUSTABLE FAN DELAY SETTING 5. FIELD INSTALLED EXPANSION VALVE MANUFACTURER MODEL DATE: TECHNICIAN: (YY/MM/DD) SIGNATURE: FILL OUT FORM MANUALLY, TAKE A PHOTO SCAN THE QR CODE LOCATED IN THE AND SEND TO: CONTROL PANEL OF YOUR UNIT TO ACCESS service@refplus.com THE ONLINE FORM...
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Page 22: Wiring Diagrams
WIRING DIAGRAMS 13. WIRING DIAGRAMS 13.1 TYPICAL WIRING DIAGRAMS FOR EH-EI MODELS - AIR, ELECTRIC & HOT GAS DEFROST Reverse-cycle & three-pipe defrost Reverse-cycle & three-pipe defrost with electric drain pan with hot-gas drain pan USE COPPER CONDUCTOR ONLY USE COPPER CONDUCTOR ONLY DT: DEFROST TERMINATION THERMOSTAT DT: DEFROST TERMINATION THERMOSTAT FD: FAN DELAY THERMOSTAT... -
Page 23: Eqa Models - Air Defrost (High-Speed Fan Motors (Optional))
WIRING DIAGRAMS 13.2 TYPICAL WIRING DIAGRAMS FOR EQA-LQA-DQA MODELS - AIR DEFROST HIGH-SPEED FAN MOTORS - 208-230/3/60 (OPTIONAL) WIRING DIAGRAMS ARE FOR REFERENCE ONLY. REFER TO DIAGRAM SUPPLIED WITH YOUR UNIT. USE COPPER SUPPLY WIRES 208-230/3/60 BLACK BLUE DETAIL "A" DETAIL "A"... -
Page 24: Eqa-Exa Models - Air Defrost (Twin-Speed Fan Motors (Optional))
WIRING DIAGRAMS 13.3 TYPICAL WIRING DIAGRAMS FOR EQA-EXA-LQA-DQA MODELS - AIR DEFROST TWIN-SPEED FAN MOTORS - 208-230/3/60 (OPTIONAL) WIRING DIAGRAMS ARE FOR REFERENCE ONLY. REFER TO DIAGRAM SUPPLIED WITH YOUR UNIT. USE COPPER SUPPLY WIRES 208-230/3/60 BLACK BLUE DETAIL "A" DETAIL "A"... -
Page 25: Eqa-Exa Models - Air Defrost (Low-Speed Fan Motors)
WIRING DIAGRAMS 13.4 TYPICAL WIRING DIAGRAMS FOR EQA-EXA MODELS - AIR DEFROST LOW-SPEED FAN MOTORS - 208-230/3/60 WIRING DIAGRAMS ARE FOR REFERENCE ONLY. REFER TO DIAGRAM SUPPLIED WITH YOUR UNIT. USE COPPER SUPPLY WIRES 208-230/3/60 BLACK BLUE DETAIL "A" DETAIL "A" LOW SPEED WIRING BY OTHERS ----- M#: FAN MOTOR... -
Page 26: Eqe-Exe Models - Electric Defrost (Twin-Speed Fan Motors (Optional))
WIRING DIAGRAMS 13.5 TYPICAL WIRING DIAGRAMS FOR EQE-EXE MODELS - ELECTRIC DEFROST TWIN-SPEED FAN MOTORS - 208-230/3/60 (OPTIONAL) WIRING DIAGRAMS ARE FOR REFERENCE ONLY. REFER TO DIAGRAM SUPPLIED WITH YOUR UNIT. USE COPPER SUPPLY WIRES 208-230/3/60 BLACK BLUE DETAIL "A" DETAIL "A"... -
Page 27: O F (0 O C)
WIRING DIAGRAMS 13.6 TYPICAL WIRING DIAGRAMS FOR EQE-EXE MODELS - ELECTRIC DEFROST HIGH-SPEED FAN MOTORS FOR ROOMS OF LESS THAN 32 F (0 C) - 208-230/3/60 & 240/1/60 (PILOT DUTY) WIRING DIAGRAMS ARE FOR REFERENCE ONLY. REFER TO DIAGRAM SUPPLIED WITH YOUR UNIT. HIGH SPEED WIRING USE COPPER SUPPLY WIRES 208-230/3/60... -
Page 28: Eq-Ex Models - Hot-Gas Defrost (Twin-Speed Fan Motors)
WIRING DIAGRAMS 13.7 TYPICAL WIRING DIAGRAMS FOR EQ-EX MODELS - HOT-GAS DEFROST TWIN-SPEED FAN MOTORS - 208-230/3/60 WIRING DIAGRAMS ARE FOR REFERENCE ONLY. USE COPPER SUPPLY WIRES 208-230/3/60 REFER TO DIAGRAM SUPPLIED WITH YOUR UNIT. BLACK BLUE DETAIL "A" DETAIL "A" INTERLOCK NOTE A : WITH JUMPER J1 HIGH SPEED CONTACT... -
Page 29: Eq-Ex Models - Hot-Gas Defrost (High-Speed Fan Motors For Rooms Of Less Than 32 C)
WIRING DIAGRAMS 13.8 TYPICAL WIRING DIAGRAMS FOR EQ-EX MODELS - HOT-GAS DEFROST HIGH-SPEED FAN MOTORS FOR ROOMS OF LESS THAN 32 F (0 C) - 208-230/3/60 WIRING DIAGRAMS ARE FOR REFERENCE ONLY. REFER TO DIAGRAM SUPPLIED WITH YOUR UNIT. USE COPPER SUPPLY WIRES 208-230/3/60 BLACK BLUE... -
Page 30: Eq-Ex Models - Hot-Gas Defrost W / Electric Drain Pan (Twin-Speed Fan Motors)
WIRING DIAGRAMS 13.9 TYPICAL WIRING DIAGRAMS FOR EQ-EX MODELS - HOT-GAS DEFROST W / ELECTRIC DRAIN PAN TWIN-SPEED FAN MOTORS - 208-230/3/60 WIRING DIAGRAMS ARE FOR REFERENCE ONLY. REFER TO DIAGRAM SUPPLIED WITH YOUR UNIT. USE COPPER SUPPLY WIRES 208-230/3/60 BLACK BLUE BROWN... -
Page 31: Eq-Ex Models - Hot-Gas Defrost W / Electric Drain Pan (High-Speed Fan Motors For Rooms Of Less Than 32 C)
WIRING DIAGRAMS 13.10 TYPICAL WIRING DIAGRAMS FOR EQ-EX MODELS - HOT-GAS DEFROST W / ELECTRIC DRAIN PAN HIGH-SPEED FAN MOTORS FOR ROOMS OF LESS THAN 32 F (0 C) - 208-230/3/60 WIRING DIAGRAMS ARE FOR REFERENCE ONLY. REFER TO DIAGRAM SUPPLIED WITH YOUR UNIT. USE COPPER SUPPLY WIRES 208-230/3/60 BLACK... -
Page 32: Eq-Ex Models (Ecm Blue Fan Motors)
WIRING DIAGRAMS 13.11 TYPICAL WIRING DIAGRAMS FOR ALL EQ-EX MODELS (AWEF EQ MODELS) ECM BLUE FAN MOTORS - 480/3/60 WIRING DIAGRAMS ARE FOR REFERENCE ONLY. REFER TO DIAGRAM SUPPLIED WITH YOUR UNIT. IMPORTANT! CURRENT PROVIDED TO THE MOTORS MUST BE APPLIED AT ALL TIMES USE COPPER SUPPLY WIRES 480/3/60 H3 H2 H1... -
Page 33: Piping Diagrams
PIPING DIAGRAMS 14. PIPING DIAGRAMS 14.1 TYPICAL PIPING DIAGRAMS FOR EH-EI MODELS - HOT-GAS DEFROST PIPING DIAGRAMS ARE FOR REFERENCE ONLY. MAY VARY ON ACTUAL UNIT. Reverse-cycle defrost Three-pipe defrost with hot-gas drain pan with hot-gas drain pan LIQUID LIQUID DEFROST NORMAL Reverse-cycle defrost... -
Page 34: Eq-Ex Models - Reverse-Cycle Defrost With Hot-Gas Drain Pan
PIPING DIAGRAMS 14.2 TYPICAL PIPING DIAGRAMS FOR EQ-EX MODELS - REVERSE-CYCLE DEFROST WITH HOT-GAS DRAIN PAN PIPING DIAGRAMS ARE FOR REFERENCE ONLY. MAY VARY ON ACTUAL UNIT. One-Circuit - Reverse-Cycle Defrost with Hot-Gas Drain Pan LIQUID DEFROST SUCTION DRAIN PAN One-Circuit - Two-Coil, Reverse-Cycle Defrost with Hot-Gas Drain Pan LIQUID DEFROST... -
Page 35: Eq-Ex Models - Three-Pipe Defrost With Hot-Gas Drain Pan
PIPING DIAGRAMS 14.3 TYPICAL PIPING DIAGRAMS FOR EQ-EX MODELS - THREE-PIPE DEFROST WITH HOT-GAS DRAIN PAN PIPING DIAGRAMS ARE FOR REFERENCE ONLY. MAY VARY ON ACTUAL UNIT. One Circuit - Three-Pipe Defrost with Hot-Gas Drain Pan LIQUID DEFROST SUCTION HOT GAS DRAIN PAN Two Circuits - Three-Pipe Defrost with Hot-Gas Drain Pan LIQUID (A) -
Page 36: Eq-Ex Models - Reverse-Cycle Defrost With Electric Drain Pan
PIPING DIAGRAMS 14.4 TYPICAL PIPING DIAGRAMS FOR EQ-EX MODELS - REVERSE-CYCLE DEFROST WITH ELECTRIC DRAIN PAN PIPING DIAGRAMS ARE FOR REFERENCE ONLY. MAY VARY ON ACTUAL UNIT. One Circuit: Reverse-Cycle Defrost with Electric Drain Pan LIQUID HOT GAS SUCTION ELECTRIC DRAIN PAN HEATERS One Circuit / Two Coils: Reverse-Cycle Defrost with Electric Drain Pan LIQUID... -
Page 37: Eq-Ex Models - Three-Pipe Defrost With Electric Drain Pan
PIPING DIAGRAMS 14.5 TYPICAL PIPING DIAGRAMS FOR EQ-EX MODELS - THREE-PIPE DEFROST WITH ELECTRIC DRAIN PAN PIPING DIAGRAMS ARE FOR REFERENCE ONLY. MAY VARY ON ACTUAL UNIT. One Circuit: Three-Pipe Defrost with Electric Drain Pan LIQUID DEFROST SUCTION HOT GAS ELECTRIC DRAIN PAN HEATERS Two Circuits: Three-Pipe Defrost with Electric Drain Pan... -
Page 38: General Warranty
GENERAL WARRANTY REFPLUS (SELLER) WARRANTS THAT THE EQUIPMENT MANUFACTURED BY THE SELLER, INCLUDING SERVICE PARTS, AND SOLD UNDER THIS CONTRACT SHALL BE FREE FROM DEFECTS IN MATERIAL AND WORKMANSHIP FOR A PERIOD OF TWELVE (12) MONTHS FROM THE DATE OF EQUIPMENT START-UP OR EIGHTEEN (18) MONTHS FROM THE DATE OF SHIPMENT, WHICHEVER OCCURS FIRST. ZIEHL-ABEGG FAN ASSEMBLIES ARE WARRANTED AGAINST DEFECTS IN MATERIALS AND WORKMANSHIP FOR A PERIOD OF TWENTY-FOUR (24) MONTHS FROM THE DATE OF EQUIPMENT START-UP OR THIRTY (30) MONTHS FROM THE DATE OF SHIPMENT, WHICHEVER OCCURS FIRST. - Page 39 NOTES ________________________________________________________________________________________________________ ________________________________________________________________________________________________________ ________________________________________________________________________________________________________ ________________________________________________________________________________________________________ ________________________________________________________________________________________________________ ________________________________________________________________________________________________________ ________________________________________________________________________________________________________ ________________________________________________________________________________________________________ ________________________________________________________________________________________________________ ________________________________________________________________________________________________________ ________________________________________________________________________________________________________ ________________________________________________________________________________________________________ ________________________________________________________________________________________________________ ________________________________________________________________________________________________________ ________________________________________________________________________________________________________ ________________________________________________________________________________________________________ ________________________________________________________________________________________________________ ________________________________________________________________________________________________________ ________________________________________________________________________________________________________ ________________________________________________________________________________________________________ ________________________________________________________________________________________________________ ________________________________________________________________________________________________________ ________________________________________________________________________________________________________ ________________________________________________________________________________________________________ ________________________________________________________________________________________________________ ________________________________________________________________________________________________________ ________________________________________________________________________________________________________ ________________________________________________________________________________________________________ ________________________________________________________________________________________________________ ________________________________________________________________________________________________________ ________________________________________________________________________________________________________ ________________________________________________________________________________________________________ ________________________________________________________________________________________________________...
- Page 40 LINECARD IOM_INDUSTRIAL WALK-IN EVAPORATORS_EN-R0 CERTIFIED ISO-9001 RefPlus Inc. reserves the right to make any changes in the design or specifications of any product at any time without notice. USA & CANADA 1-888-816-2665 / refplus.com © Copyright 2022 by RefPlus Inc.