l See "Calibration 1 (CA1)" on page 68
7.4 How to mount the condenser sensor
This sensor measures the temperature of the refrigeration system. Excessive condenser tem-
perature is usually due to poor preventive maintenance, i.e poorly cleaned condenser, or condenser
fan failure.
7.4.1 Condenser sensor
EMS controllers can generate alarms if the refrigeration system temperature rises too high.
The value of the high temperature is set by measuring the refrigeration system temperature, when
the condenser is approximately 75% blocked. The temperature is then set as the value of the con-
denser high temperature (Ht) parameter.
l See "Condenser high temperature (Ht)" on page 70
For example, fix using a metal pipe clip or direct fitting, as shown below.
Elstat can supply pipe clips for 6-8mm and 8-10mm pipes.
Caution:
l Do not use cable ties.
The head of the sensor is fragile and can be easily damaged. Using cable ties to secure the sensor head or
sensor cable invalidates the warranty.
l Do not attach sensor cables to hot pipes or allow the sensor cables to come into contact with hot pipes.
7.5 How to mount the evaporator sensor
The evaporator sensor measures the temperature of the evaporator. EMS controllers use the tem-
perature of the evaporator to activate and terminate defrost cycles.
The evaporator sensor should be placed in the immediate proximity of the evaporator. Mount the
sensor head inside the evaporator cooling fins, as shown below.
The sensor head must be mounted securely to prevent being dislodged due to vibration.
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27 February 2014
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