FORM QWC3-EG1 (217)
QUANTECH
11
Accessories and Options
All accessories and options are factory installed unless otherwise noted.
POWER OPTIONS
Single Point Supply Terminal Block
– The standard power wiring connection on all
models is a single point power connection to a factory provided terminal block. Compo-
nents included are the enclosure, terminal-block and interconnecting wiring to the com-
pressors. Separate external protection must be supplied, by others, in the incoming power
wiring. (Do not include this option if either the Single-Point Non-Fused Disconnect Switch
or Single-Point Circuit Breaker options have been included.)
Single Point Non-Fused Disconnect Switch
– An optional unit-mounted disconnect
switch with external, lockable handle (in compliance with Article 440-14 of N.E.C.), can be
supplied to isolate the unit power voltage for servicing. Separate external fusing must be
supplied, by others in the power wiring, which must comply with the National Electrical Code
and/or local codes.
Single Point Circuit Breaker
– An optional unit mounted circuit breaker with external, lock-
able handle (in compliance with N.E.C. Article 440-14), can be supplied to isolate the power
voltage for servicing.
Multiple Point Circuit Breaker
– Optional multiple point supply with independent system
circuit breakers and locking external handles (in compliance with Article 440-14 of N.E.C)
can be factory supplied. Selecting this option also selects optional compressor external
overloads, for reduced MCA.
Control Transformer
– Converts unit power voltage to 115-1-60 (0.5 or 1.0 KVA capacity).
Factory mounting includes primary and secondary wiring between the transformer and the
control panel.
Compressor External Overloads
– Optional compressor motor overloads can be factory
mounted in the unit control/power panel. This option will reduce the chiller MCA (minimum
circuit ampacity) and allow for reduced wire sizing to the unit. This option is not available
for applications with Leaving Condenser Water Temperature (
LCWT
) greater than 110ºF
(43ºC).
CONTROLS OPTIONS
Language LCD And Keypad
– Standard display language and keypad is in English.
Spanish and French are available as an option.
HEAT EXCHANGER OPTIONS
Flow Switch
– An optional flow switch can be factory supplied for the evaporator. Vapor-
proof SPDT, NEMA 3R switch, 150 PSIG (10.3 bar) DWP, 20°F to 250°F (-29°C to 121°C)
with 1” NPT (IPS) connection for upright mounting in horizontal pipe. The flow switch or its
equivalent must be furnished with each unit. (
Field mounted
)
Содержание QWC3
Страница 1: ...MODEL QWC3 WATER COOLED SCROLL LIQUID CHILLER 50 200 TONS 60Hz R 410a FORM QWC3 EG1 217 ...
Страница 4: ...QUANTECH FORM QWC3 EG1 217 4 THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 39: ...FORM QWC3 EG1 217 QUANTECH 39 Unit Dimensions Four Compressor Cont d ...
Страница 41: ...FORM QWC3 EG1 217 QUANTECH 41 Unit Dimensions Five Six Compressor Cont d ...
Страница 56: ...QUANTECH FORM QWC3 EG1 217 56 Typical Control Panel Wiring 4 COMPRESSOR UNITS LD21794a ...
Страница 57: ...FORM QWC3 EG1 217 QUANTECH 57 Typical Control Panel Wiring Cont d 4 COMPRESSOR UNITS LD21794b ...
Страница 69: ...FORM QWC3 EG1 217 QUANTECH 69 NOTES ...