Temptek VETERAN LS Series, Инструкция по эксплуатации

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Temperature Control Units : With ‘LS’ Series Instrument
Page: 21
TEMPTEK, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-6352 Fax: 317-881-1277
Service Department Fax: 317-885-8683
www.Temptek.com
4. During system fill, air is trapped at various places in the
water system. Air is purged automatically via the AVT
TM
valve during initial pump start-up (outlined below). All air
must be purged before the unit is engaged for process
temperature control.
Entrained air in the system will adversely affect the unit’s
ability to control process temperature. The operator can
determine all entrained air is purged when no pressure
spikes are evident via the unit’s pressure gauges.
5. Adequate water fill and
pressure must be supplied
to the unit for efficient and
safe operation. To ensure
sufficient water fill, an
electrical panel mounted
pressure switch (figure
3.2A) is supplied with the
unit. A capillary line feeds
the pressure switch. If the
water supply pressure
is not adequate the unit
can not be operated.
This prevents operation with inadequate water fill and
pressure. If the unit is operated without adequate water fill
and pressure, the unit may be susceptible to overheating
and could result in unit damage and/or serious injury to
operating personnel.
B. ELECTRIC MOTOR PHASING (PUMP ROTATION)
1. The operator must determine the electric motor is phased
correctly. This is done by visually inspecting the rotation of
the motor shaft as outlined below. Incorrect phasing of the
unit results in poor operation and eventual damage.
a. Supply electrical power to the unit by engaging the
unit’s disconnect switch. Once the correct voltage is
supplied to the unit, the Power light on the display
will illuminate.
b. Remove the thermoformed cover panel and open
the hinged electrical cabinet panel cover. Note that
the electrical power is engaged at this point and
caution must be observed while the electrical
supply is engaged and the cabinet panel is
open.
c. Locate the electric motor (figure 3.2B) and identify
the motor shaft inside the electric motor housing.
The motor shaft can be seen through the vent
slots in the motor housing or by removing the shaft
Panel mounted pressure switch
Figure 3.2A