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Summary of Contents for Kramer LPE
- Page 1 EDEI-812 SEPTEMBER, 1999 KRAMER ELECTRIC DEFROST EVAPORATORS LPE - LVE - MSE - CSE - HSE - CED - KED INSTALLATION, START-UP AND MAINTENANCE INSTRUCTIONS 14230 Lochridge Blvd - Covington, Georgia 30014 (770) 778 - 5800 Fax (770) 788 - 5820...
- Page 2 DO NOT return damaged equipment to the manufacturer without prior approval. APPLICATION OF ELECTRIC DEFROST EVAPORATORS The evaporators covered in this bulletin are designed to operate at room temperatures below 35°F. LPE, CSE and MSE models are recommended for room temperatures to -20°F, model CED and KED to -30°F, and model HSE to -10°F.
- Page 3 PIPING All piping must be clean and dry. Keep it capped to prevent dirt and moisture from entering. Do not leave piping open to the atmosphere overnight. When brazing, keep dry nitrogen flowing through the lines to prevent internal oxide and scale formation. Use a high temperature silver brazing alloy.
- Page 4 Stainless steel fasteners are recommended for mounting evaporators. Use a minimum 5/16 inch fastener with LPE, HSE and LVE; 3/8 inch fasteners with MSE and CSE; and 1/2 inch fasteners with CED and KED evaporators. Use large flat washers next to the hanger bars and if evaporators are suspended from threaded rods they must also have a nut and washer above the hanger bar to securely hold the unit to the rod.
- Page 5 LOCATING WALK-IN EVAPORATORS MINIMUM DIMENSION FOR GOOD AIR CIRCULATION AND EVAPORATOR PERFORMANCE EVAPORATOR Unit to Unit to Unit Unit to Unit HEIGHT (Key Dim.) Back Wall * Side Wall to Unit Front Wall to Floor 1 x H 1 x H 2 x H 5 x H 3 x H...
- Page 6 ELECTRIC DEFROST EVAPORATOR RECOMMENDED LINE SIZE R-22 EVAPORATOR +25°F SUCTION +15°F SUCTION +5°F SUCTION -10°F SUCTION -25°F SUCTION LIQUID LINE EVAPORATOR BTUH 100' 100' 100' 100' 100' 100' BTUH 3000 3000 4000 4000 6000 6000 9000 7/8 1 1/8 9000 12000 7/8 1 1/8 12000...
- Page 7 ELECTRIC DEFROST EVAPORATOR RECOMMENDED LINE SIZE R-404A, R-507 EVAPORATOR +20°F SUCTION +10°F SUCTION -10°F SUCTION -25°F SUCTION -40°F SUCTION LIQUID LINE EVAPORATOR BTUH 100' 100' 100' 100' 100' 100' BTUH 3000 3000 4000 4000 6000 6000 9000 9000 12000 7/8 1 1/8 7/8 1 1/8 12000 15000...
- Page 8 ELECTRICAL All wiring must be in compliance with national and local codes. Use copper conductors of the proper size to handle the connected load. The specplate on the evaporator is marked with the electrical ratings. Consult the wiring diagram in the electrical end. Determine if the evaporator fans require a separate power source or if powered by the control circuit.
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Page 9: Evaporator Maintenance
START-UP and PULL DOWN A thorough leak test and evacuation must precede charging and start-up. Refer to the condensing unit or sys- tem installation instructions. Check the compressor oil level before and during start-up. Check fan blades for correct rotation. The control circuit should be energized at least 12 hours and preferably 24 hours before charging and start-up to open the liquid line solenoid and turn on the crankcase heater. -
Page 10: System Operation Check List
SYSTEM OPERATION CHECK LIST CUSTOMER _________________________________________________________________ ROOM NAME______________________________ ROOM TEMPERATURE__________°F Condensing Unit Model No.________________________ Serial No.__________________ Evaporator Model No._____________________________ Serial No.__________________ Date Installed______________ Date Today______________ Ambient Temp.________°F Evaporator Suction Temp.______________°F Evaporator Suction Pressure__________PSI --- Convert to _____________°F Evaporator Superheat___________° Liquid Temp. entering X-valve ________ °F Compressor Suction Temp._____________°F Compressor Suction Pressure_________PSI --- Convert to _____________°F Compressor Superheat___________°... -
Page 11: Replacement Parts
230/460-3-60 Motor 1 1/2 HP For 24") 115114000 230/460-3-60 Motor 3 HP For 30") 048-057 PLEASE NOTE KRAMER Motors are 1/20 HP, Motors are 1550 RPM. 19" height models use 1/8 Capacitor is included has been 1550 RPM. Capacitor All blades 10", hubless. - Page 12 HEATER REPLACEMENT GUIDE FOR KRAMER ELECTRIC DEFROST EVAPORATORS EVAP. EVAP. COIL HEATER RATINGS DRAIN PAN HEATER RATINGS SIZE SIZE QTY. PART NO. V0LTS WATTS QTY. PART NO. VOLTS WATTS LPE - 6 LPE - 4 35-41-46 206240-06 200172-42 63-71 206240-07...
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