Amron 9000-ECS, Руководство пользователя

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MODEL 9000-ECS USER MANUAL
9000-ECS-UM REV 4.0
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The pump draws fluid from the bottom side of the reservoir. The pump output is routed to the
supply thermometer, which indicates the output temperature of the fluid. From the
thermometer the fluid is plumbed to the fluid connection panel. This is the connection for the
chamber supply line. The chamber return line attaches to the other connector on the fluid
connections panel. This is routed to the return thermometer, and back to the top of the
reservoir to complete the cycle.
The fluid connection panel is factory fitted to the rear side of the unit. It is possible to move
this connection to the front of the unit if desired. Remove front and rear side covers from the
unit, and the top cover to gain access to the internal plumbing. Remove blank panel from
front, remove fluid connection panel from rear and route hoses to front side of unit and install
fluid connection panel. Install blank panel on rear, install covers to complete the change.
The reservoir also contains the heater, temperature bulbs, and sight glass. The heater is an
immersion type, 220 VAC 3000 watt. Only heat or cool can be selected and operated at one
time, not both.
ELECTRICAL SYSTEM 4.4
The electrical system operates from 220 VAC, single phase, 50/60 Hz. The unit requires a
15 amp fused circuit, preferably from a separate disconnect box located close to the system.
The heater and pump have separate internal fuses. The heater is fused at 15 amp, and the
pump at 5 amps.
The unit is controlled by internal contactors for the switching of AC power. This also provides
the facility to control the unit remotely. The power for the contactors is supplied via a small
internal step down transformer that provides 24 VAC. There are three contactors; one for the
refrigeration system, one for the heater and one for the pump. Control is via a front panel
toggle switch that turns the unit on, activates the pump contactor. This same switch passes
control to the remote control connector, and disables local control. The second switch
selects heat or cool or neither. The heat position activates the heat circuit if the power switch
is on. The cool position activates the cool contactor when the power switch is on.
The cool circuit has a time delay, which controls the energizing of the compressor contactor.
Upon first actuation the delay is from 0 to 10 seconds before the compressor will turn on.
After the first actuation the delay is approximately 45 seconds, which allows time for the
compressor pressure to bleed down. This prevents a locked rotor condition and nuisance
blowing of fuses or circuit breakers.
The remote control Model 9000-RCS has one switch that turns the unit on in either the heat
or cool position.