Caltech Calaer 2 kW Installation And Operating Instructions Manual - page 21
21
ELECTRICAL SYSTEM
NOTE:
Electrical components, such as switches, fuses, relays, etc., must be installed
in a way so that they are protected from the penetration of water (splash
water, high-pressure water cleaners etc.)
CONNE CTION OF CONTROL UNIT TO HEATE R
The standard control unit consists of a control button with an ‘off’ position
and a temperature gradient witch sets the thermostat temperature. The
control unit shall be mounted in a place where it is protected from moist or
dust.
A timer control unit is available as an option and can be installed in parallel
with the control button. The timer controller allows startup at a predefined
time, runs the heater at the set thermostat temperature for a certain
number of minutes and then switches the heater off.