Hotstart OCLA, Руководство по установке и эксплуатации

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10
installation
&
operation manual
|
ocle
/
ocla heating system
2.6.3 MOTOR ROTATION CHECK
NOTICE
Pump rotation (three-phase only): For three-phase
applications, check for proper pump rotation prior to
introducing fluid to the pump. Reverse rotation while
the pump is filled with fluid will cause pump seal failure.
Pump damage:
Do not run the motor/pump assembly
dry for more than a few seconds. Running a motor/
pump for a prolonged period without being completely
filled with fluid may cause damage to the pump seal.
The following procedures are for three-phase
applications only. Single-phase systems are prewired to
ensure the pump motor rotates in the correct direction.
1.
With main power connected to the heating system
motor (see
SECOIO 2.6.1
) , energize the pump
while observing the rotation of the pump motor fan
at the rear of the motor. Refer to rotation decal on
motor for correct rotation.
h
If the pump motor does not rotate in the correct
direction, disconnect power and switch any two
electrical leads at the main power terminal block
( L1, L2, L3 ). Reconnect power. Repeat step 1 to
ensure motor rotates in the correct direction.
3 COMPONENTS AND
OPERATION
The following is an operational description for each of
the OCLE/OCLA interface and system components.
OOE:
Components installed in control box may
vary depending on the particular system
configuration purchased.
3.1 INTERFACE COMPONENTS
3.1.1 LOCAL/OFF/REMOTE SWITCH
•
local
– The system is on.
•
off
– The system is shut off.
•
remote
– The system will turn on and shut
off on a signal from the 24 V DC remote
connection. See
SECOIO 2.6.2.
3.1.2 PRIME BUTTON
Press and hold the
prime
button to energize the pump
motor in order to remove any air in the heating system
without energizing the elements. OOICE! Do not run
the motor/pump assembly dry for more than five
seconds at a time.
OOE:
The
prime
function is intended for use during
the first run procedure ( see
SECOIO 3.3.1
) or
after performing maintenance on the heating
system or plumbing ( see
SECOIO 4.3
) .
3.1.3 RESET BUTTON
Press the
reset
button to reset the pump motor protection
switch without opening the control box. The reset function
is intended for use immediately following resolving and
repairing a system fault (
see SECOIO 4.1) .
3.1.4 PRESSURE/TEMPERATURE
GAUGE
The OCLE/OCLA model features a temperature/pressure
gauge mounted at the heating tank inlet. The gauge will
indicate a pressure increase when the pump motor is
engaged by pressing and holding the
prime
button or
during normal operation. The gauge will also indicate the
fluid’s current temperature.
OOE: Your system’s operating pressure may vary
depending on the configuration of the engine.
3.1.5 COOLANT PRESSURE RELIEF VALVE
CAUTION
!
Pressurized steam hazard: Coolant pressure relief valve
outlet must be plumbed to a safe area in case an over-
pressure release of heated coolant occurs.
The coolant pressure relief valve is mounted at the
coolant heating tank outlet and is set to relieve at 100
psi (690 kPa). During normal operation, pressure release
events are rare. To safeguard personnel and equipment,
attach an appropriately sized pipe to the pressure relief
valve outlet and direct flow to a safe area, bucket or
other catch-basin. See SECOIO 2.3.3 .
3.1.6 OIL PRESSURE RELIEF VALVE
PRESSURE RELIEF
VALVE CAP
PUMP INLET PUMP OUTLET
Figure 6. Typical OCLE/OCLA pump assembly. Note that the
pressure relief valve cap must always point toward the inlet side of
pump.