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Over-Temperature Protection
6XXX Chillers
— The OTP for 6XXX model Chillers is fixed at a cutout temperature of 60°C. The OTP will auto-
reset once the fluid temperature drops below the cutout temperature.
5XXX Chillers
— The OTP for 5XXX model Chillers with the heater option is adjustable and disconnects power to
the heater at a factory-set temperature of 95°C. The OTP is reset by pressing the red button located on the rear
panel of the Chiller. If required, the cutout temperature may be adjusted using the OTP cutout temperature
adjustment screw located to the left of the red reset button. To change the OTP cutout temperature, rotate the
adjustment screw clockwise until it stops, bring the fluid temperature to the desired cutout temperature, and then
rotate the adjustment screw counterclockwise until the OTP opens. 95°C is the maximum cutout temperature.
OTP Adjustment Screw and Reset — 5XXX Chillers only
IMPORTANT:
The range of the OTP cutout on 5XXX model Chillers is approximately 60° to 110°C. However,
the OTP cutout should never be set above the factory-set temperature of 95°C.
OTP Reset Button
OTP Cutout
Adjustment Screw
Summary of Contents for DuraChill 58 Series
Page 1: ...User Guide DuraChill Air and Water Cooled 1 5 HP Chillers 110 392 27 June 2016...
Page 2: ......
Page 32: ...110 392 30 Electrical Specifications...
Page 39: ...110 392 37 Appendix Flow Schematic All Models...
Page 40: ...110 392 38 Electrical Diagram 208 230V 1PH 50 60Hz Models without heater option...
Page 41: ...110 392 39 Electrical Diagram 208 230V 1PH 50 60Hz Models with heater option...
Page 42: ...110 392 40 Electrical Diagram 208 230V and 380 460V 3PH 50 60Hz Models without heater option...
Page 43: ...110 392 41 Electrical Diagram 208 230V and 380 460V 3PH 50 60Hz Models with heater option...
Page 45: ...110 392 43 DI Control Wiring H2 H3 Option Wiring H2 24 VDC H3 12 VDC...
