Donaldson Torit DWS 4-1, Инструкция по установке и эксплуатации

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Downflo Workstation, DWS 4-1 to 6-4
16
Solid-State Timer Installation in
NEMA 4 Enclosure
Electrical installation must
be performed by a qualified
electrician and comply with all applicable
national and local codes.
Turn power off and lock out electrical power
sources before performing installation, service,
or maintenance work.
Do not install in classified hazardous
atmospheres without an enclosure rated for
the application.
The solid-state timer is an electronic timer used to
control the filter cleaning system. Each power module
is equipped with four or six 115-Volt AC solenoid valves
that energize the diaphragm valves to pulse-clean
the filter cartridges. The timer is factory adjusted
at 100-millisecond ON time and 10-second OFF time
between pulses.
1. Mount the fan starter with low voltage control in a
convenient location.
2. Mount the control box as close to the blower motor
starter as possible.
3. Using the wiring diagram supplied, wire the blower
motor, blower-motor starter, solid-state timer, and
solenoid valves. Use appropriate wire gauge for
rated amp load as specified by local codes.
Note: Access the solenoid valves and blower
motor by removing the access covers at the
rear of the power module. After wiring is
complete, replace the covers.
Route wiring through the conduit holes located
at the rear of the power module. All conduit
holes are sized for 3/4-in fittings. Secure all
conduit in the blower and solenoid plenums.
Seal conduit to prevent airflow from passing
through to the control panels.
4. Diaphragm valves have an external solenoid
enclosure mounted inside the clean air plenum
on the pressure manifold. Wire each solenoid by
loosening the solenoid enclosure cover fastening
screws. Pull the cover from the solenoid enclosure.
Wire solenoids through access points in rear
of cabinet and enclosure by referencing wiring
diagram.
5. Motor and fan should be wired for clockwise rotation
when viewed from the back of the motor.
To reverse rotation, three-phase power supply:
Turn electrical power OFF at source and switch any
two leads on the motor junction box.
Do not interchange a power lead
with the ground wire. Severe
damage or personal injury may result.
6. Turn the blower motor ON then OFF. Check for
clockwise rotation when viewed from the back of the
motor.
7. Turn blower fan motor ON.
Do not look into fan outlet to
determine rotation. View the fan
rotation through the back of the motor.
Check that the exhaust plenum is free of tools
or debris before checking blower/fan rotation.
Stand clear of exhaust to avoid personal injury.