Advantage SENTRA SRT-1045-300, Инструкция по эксплуатации

Страница: 16 / 90

Temperature Control Units : Sentra with T300 Control Instrument
Page: 16
Advantage Engineering, Inc.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729 Fax: 317-881-1277
Service Department Fax: 317-885-8683www.AdvantageEngineering.com
3.
In general the standard ½” cooling valve will provide approximately 24,0000
Btu/hr (7 kW) of cooling per every 10°F difference between the cooling water
temperature and the process set point based on 25 psi delta p across the cooling
valve with ½” supply & return connections. Connecting the unit with ¾” or 1”
cooling water supply and return connections will increase the cooling capacity of
the unit.
C.
For most applications, the drain line should not be valved. However, for installations
with a pressurized drain system, it may be necessary to install a valve in the drain line.
In such cases, the installed valve must be fully opened after installation and the valve
handle removed to prevent operating the unit with a closed drain valve. The valve handle
can be reattached to the valve body when it is necessary to close the valve.
D. CAUTION: The unit must never be operated with a closed drain line valve. A closed
drain line valve prevents adequate system cooling and will lead to unit overheating.
Overheating of the unit may lead to unit damage and/or serious personal injury.
2.5 ELECTRICAL CONNECTION
A. Standard Models
1.
Electrical power supply requirements for standard units are identified on the
equipment data tag. Verify that available voltage supply is the same as the unit’s
voltage requirements.
WARNING: DO NOT CONNECT THE UNIT TO A VOLTAGE SUPPLY SOURCE
NOT EQUAL TO THE UNIT’S VOLTAGE REQUIREMENTS AS SPECIFIED ON
THE UNIT’S DATA PLATE.
Use of incorrect voltage will void the unit’s warranty and cause a significant
hazard that may result in serious personal injury and/or unit damage.
2.
For standard units with 10 and 16 KW heaters and up to 3 horsepower pumps, a
four conductor cable, 10 foot in length, is provided for connection to an operator
supplied fused disconnect.
3.
For units with 24 and 34 KW heaters, the operator must provide a four conductor
power cable and the fused disconnect.
4.
The owner supplied fused disconnect must be sized and installed according to
the unit’s power supply requirements and local electrical codes.
B. Models With Factory Included Disconnect Switch and Other Custom Features
1.
Some units may be customized and include a factory supplied power disconnect
switch and/or higher specification electrical enclosure. Electrical power supply
requirements are identified on the equipment data tag. Verify that available
WARNING: Never operation the Temperature Control Unit with a closed drain.