Norlake CAPSULE PAK Manual De Instalación página 16

N -L , I . C P ™ O
OR AKE NC APSULE AK PERATION
OPERATION
STANDARD TEMPERATURE (COOLER) SYSTEMS
The automatic air defrost Capsule Pak™ Refrigeration System for coolers is a basic, unitized refrigeration system.
The system is designed to provide normal storage temperatures in a Kold Locker™ Walk-in with a minimum of
effort during initial installation. The system consists of a complete condensing unit, an evaporator coil, a method
for controlling the temperature, and a time switch for setting "off cycle" defrost.
The time switch used to control the defrost cycle has been factory preset. However, please refer to the following
instructions on the operation of the time switch if an adjustment is ever needed. All cooler systems from Nor-Lake
are provided with an electronic 24 hour dial time clock. Note: The cooler time clock is factory set for a 15 minute
defrost every 3 hours.
Important: It is the installing contractor's responsibility to check the operation upon start-up and make necessary
temperature control or thermal expansion valve adjustments as required for proper operation.
Note: Capsule Pak™ Refrigeration Systems that are designed for outdoor installation will be fitted with electric
crankcase heaters, electrically heated condensate drain tubes, automatic head pressure control valve, and the
"pump-down cycle".
Programming
The 24-hour dial has quarter-hour divisions and AM/PM indications. The time switch is
programmed by pushing the captive trippers to the outer ring position for the entire
period that the load is to be turned "on", i.e. fifteen minutes for each tripper on the 24-
hour dial. When the tripper is pushed to the inside, the switch is in the "off" position. (It
is not recommended for the cooler to have defrosts longer than 15 minutes.)
Note: For 220V 50Hz models, in which the model number ends with "ACE" or "CE", a
programmable control is used in place of the time switch. This unit is used to control
the temperature and the defrost settings. Please see the separate instructions that are
included on the operation of this control.
Defrost Cycle (Cooler System)
The purpose of the defrost cycle is to allow time for any frost formed on the evaporator to melt and clear from the
surface. The time clock stops the condensing unit. During this time, the evaporator fans continue to run, blowing
35-38˚F air over the fins. This process will warm the evaporator above 32˚F. After 15 minutes, the condensing
unit should restart.
© 2008 Nor-Lake 4/08 PN 121430
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