Mueller Hydro-Guard 200 Series, Инструкция по установке и эксплуатации

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SECTION 3.0 – ELECTRONIC TEMPERATURE CONTROL PROGRAMMING
3.1 Power On Sequence of Operation
A. When the selector switch is in the “OFF” (left) position:
1. Power is supplied to the temperature controller and a temperature is displayed. Setpoints may
be changed any time power is supplied to the temperature controller. The temperature
displayed may not be a true reading of the tank temperature if the circulation pump is not
running.
2. All other functions of the chiller control are disabled.
B. When the selector switch is in the “ON” (center) position:
1. Power is supplied to the temperature controller and a temperature is displayed. Setpoints may
be changed any time power is supplied to the temperature controller. The temperature
displayed may not be a true reading of the tank temperature if the circulation pump is not
running.
2. The chiller circulation pump is on. Make sure the system has adequate solution to prevent the
pump from running dry.
3. The temperature controller can turn the condensing unit(s) on if the solution temperature is
above the setpoint.
C. When the selector switch is in the “chiller/process pump” (right) position:
1. All of the functions of the chiller loop (see Section B2 above) remain.
2. The process pump is on.
3.2 Error Messages
Figure 1 - Temperature Control
Chiller Control Model 200 Installation and Operation Manual
5
Effective June 22, 2000
Part No. 9843143 Revised April 8, 2002
CAUSE OUTPUTS
F1 Sensor Failure All outputs OFF
HI Sensor > High Alarm Alarm message displayed outputs ON or OFF according to setpoint
LO Sensor < Low Alarm Alarm message displayed output ON or OFF according to setpoint
EE Program Failure All outputs OFF