Honeywell PCR-110 - Manual (Page 4)

If the unit is used for purposes other than those stated here,
it shall not be considered to be use for the purpose intended.
¼ Only connect sensors supplied with the unit. If a replacement
sensor is required, only use sensors of the same type
(Part No. H61007 ).
¼ The controller is not intended for use in vehicles because the possi-
ble operating voltage ranges, interference level and environmental
operating exceed the limits for which the controller can be used.
¼ Please take the application limits into account
(see Technical Data in section 11).
3.2 Function
¼ PCR-100 and PCR-110 are general-purpose thermostats, each with
a relay output and wide temperature control range
(–55 °C to +50 °C).
¼ The controllers have different housings:
PCR-100: Modular housing for 35 mm standard rails
PCR-110: “Snap-in” installation housing, which fits into aperture
28.5 x 70.5 mm.
¼ Control performance: 2-step, on/off, with reversible direction for
heating and refrigerating.
¼ Defrost option for chilling systems if continuous operation of the
evaporator fan is foreseen in the switching box.
¼ Easy to operate thanks to digital input of setpoint value and
switching difference.
¼ Data is not lost, even if there is a power failure, for at least
10 years.
¼ Alarm output.
4 Safety
4.1 Sources of danger
¼ Caution - Mains voltage!
¼ Never expose the unit to water or moisture. Risk of malfunction
and short circuit. Only use the unit when it is adjusted to normal
ambient temperature (+15 to. +30 °C). Extreme changes in tempe-
rature in combination with high atmospheric humidity may lead to
the formation of condensed water.
¼ Even if the control circuit is switched off, high voltage may still be
applied to the controller. For this reason, isolate all electric
circuits before starting any service work.
¼ Never expose the unit to excessive heat, dust and vibrations. Avoid
knocks and pressure loads. If the housing is damaged, there is a risk
of an electric shock causing death or injury.
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