Submittal Sheet

WHT500
4
70 Beauty Spot Rd. E, Bennettsville, SC 29512
SELECTION CHART
ARCHITECT’S & ENGINEER’S SPECIFICATIONS*
Furnish and install, where indicated on plans, electric heater
suitable for well house freeze protection as
manufactured by Berko, A Marley Engineered Products
Brand, Bennettsville, SC. Heaters shall be cULus Listed.
ENCLOSURE: The heater shall be fabricated of 24-gauge
galvanized steel, completely welded, then coated with a cor-
rosive resistant neutral grey polyester powder paint coating.
HEATING ELEMENT: The heating element shall be
of non-glowing design consisting of special resistance wire
enclosed in a steel sheath to which aluminum fins are
mechanically crimped..
CONTROL BOX: The heater housing shall
contain an enclosed tamper proof control box to isolate all
live electrical parts from the remainder of the heater. An
integral thermostat with a temperature range of 40 deg. F to
70 deg. F shall be completely contained in the control box.
GENERAL: The heater shall be triple rated to operate at
120, 208 or 240 VAC. Shipped wired for 240/208v, field
conversion to 120v is quick and easy.
*
MEP reserves the right to change specifications without prior notice.
**Limitations: Do not install in areas where water may enter heater
unit. Do not locate where air flow may be obstructed.
DIMENSIONS
CATALOG
NUMBER VOLTS* WATTAGE AMPS BTU/HR
WHT500 240 500 2.1 1708
208 376 1.8 1284
120 500 4.2 1708
FRONT VIEW
21"
5"
TOP VIEW
1 1/2"
1"
L
EFT END
VIEW
3 1/2"
2 1/2"
5
"
N
L1
T’Stat
Blue
Black
Blue
White
Element
Blue
Blue
Blue
Blue
T-Stat
Blue
White
Black
L2
HT500 - Factory wired for 240/208 volt operation
500 watts, 2.1 amps @ 240 V
375 watts, 1.8 amps @ 208 V
HT500 - Field re-wired for 120 volt operation
500 watts, 4.2 amps
To
240/
208 V
Supply
To
120 V
Supply
Do not use white wire in 240 volt circuit
Element
N
L1
To rewire for 120 volt
operation:
1. Connect Blue “L2”
wire connection to
other element Blue
lead and thermostat
Blue lead. Remove
“L2” wire marker.
2. Connect 120 volts to
Black “L1” & White
“N”.