Dimplex DAC12AC Spezifikationen PDF herunterladen (Seite 5)

Dimplex Thermal Solutions 1800-YOU-KOOL

PRE-STARTUP PROCEDURE:

1. Complete all steps of the installation process

before applying power to the chiller.

2. If the unit is equipped, ensure the system

switch is in the OFF position, then turn on the

main power disconnect. The temperature

controller will turn on and automatically go into

a self-test. When the self-test is complete, the

controller will begin to monitor the process

fluid.

3. For units that run on three-phase power,

motor rotation must be checked and

corrected to avoid damaging the chiller

and voiding the warranty. If the chiller is

equipped with a phase protector, the unit will

not start up and may display a fault if phase

rotation is not correct. Correcting phase

rotation should make this fault go away.

Single phase units will not be affected by any

certain phase rotation and should continue on

with step 4 of the pre-startup procedure.

If the unit is equipped with a process fluid

pump, phase rotation can be checked by briefly

turning on the system and allowing the pump

to energize. Watch the rotation of the cooling

fan on the pump to see that it is turning in the

direction indicated by the rotation arrow on the

pump motor. Do not use condenser fans to

judge phase rotation as many three phase

units have single phase fans and will run

correctly from DTS even with incorrect power

phasing.

If the unit does not have a pump or any other

visual method of checking rotation, a phase

checking device can be used to check power at

the disconnect. All components of the chiller

are wired to operate with a “right-hand” phase

rotation. If you do not have a phase checking

device, a certified refrigeration technician

should be utilized to monitor refrigerant

pressures as the chiller compressor comes

online.

All motors within the chiller are

synchronized at the factory for proper

rotation. If one motor is turning in the wrong

direction, all other motors will as well. DO

NOT change the orientation of any motor leads

within the chiller. If phase rotation is incorrect,

shut off the power feed and change any two

incoming power leads BEFORE the main

disconnect.

4. Chillers two tons or larger are equipped with a

compressor crankcase heater. These units

must have power supplied to the unit with only

the disconnect switch on for 8 hours prior to

starting the chiller. This will raise the

temperature of the compressor oil

enough to vaporize any refrigerant

that may be in the crankcase oil.

Failure to allow this warm-up

can result in compressor damage.

5. Ensure all process fluid lines and shutoff valves

are open and the system is able to flow freely.

Re-check the fluid level in the system before

continuing with the startup.

INITIAL STARTUP & OPERATING

PROCEDURE:

1. Complete all steps of the pre-startup procedure

before starting the chiller process.

2. Before turning on the chiller system, become

familiar with the operation of the temperature

controller on the chiller. Refer to the

temperature controller guide in this manual for

instructions.

3. Turn on the chiller process by moving the

selector switch to either ON or LOCAL. If the

unit is wired to start remotely, turn the selector

switch to REMOTE and start the chiller from the

other location.

Chillers that do not have a process selector

switch or remote control should begin the

chilling process as soon as the disconnect

switch is turned on.

4. If the unit is equipped with a process pump, it

will energize and produce flow as soon as the

chiller is turned on. Monitor any system

1 2 3 4 5 6 7 8 9 10 ... 29 30

Kommentare zu diesen Handbüchern

Keine Kommentare

Dimplex DAC12AC Spezifikationen Seite 5

Kommentare zu diesen Handbüchern

Verwandte Produkte und Handbücher für Split-System-Klimaanlagen Dimplex DAC12AC