Hotstart OCLA, Руководство по установке и эксплуатации

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12
installation
&
operation manual
|
ocle
/
ocla heating system
3.3 HEATING SYSTEM START-UP
WARNING
!
Hazardous voltage: Before wiring, servicing or
cleaning the heating system, turn off the power
and follow your organization’s lockout and tagout
procedure. Failure to do so could allow others to turn
on the power unexpectedly, resulting in harmful or
fatal electrical shock.
NOTICE
Pump damage: Do not run the motor/pump assembly
dry for more than five seconds at a time. Running a
pump that is not completely filled with fluid will cause
damage to the pump seal.
Proper heating operation: The high-limit temperature
control relay (TCR2) must be set at least 18 ° F (10 ° C)
higher than the control temperature control relay (TCR1)
for proper heating operation. This will prevent nuisance
tripping of the high-limit circuit.
3.3.1 FIRST RUN PROCEDURE
1.
For three-phase applications, ensure a motor
rotation check has been performed prior to
introducing fluid to the pumps ( see SECOIO
2.6.3 ).
OOE: Single-phase systems are prewired to
ensure the pump motor rotates in the
correct direction. A motor rotation check is
not necessary for single-phase systems.
2.
Check and tighten all electrical and plumbing
connections.
3.
Ensure isolation valves are open before energizing
the system.
4.
Bleed all trapped air from the heating system by
opening a plug or pipe fitting at or near the pump.
Press and hold the
prime
button to evacuate any
remaining air in the lines.
OOE: When priming the pump, the pressure
gauge should indicate an increase in
pressure. Your system’s operating pressure
may vary depending on the configuration
of the engine.
5.
Turn the
local
/
off
/
remote
switch to
local
or
remote
to energize the heating system.
6.
Once operation is satisfactory, turn the control
dial on the temperature control relay TCR1 to
the desired temperature setting for engine oil.
HOTSTART recommends a control temperature on
TCR1 of 104 °F (40 °C). The high-limit temperature
setting on TCR2 should be set at 194 °F (90 °C).
See
SECOIO 3.2.2
and
SECOIO 3.2.3
.
7.
Turn the
local
/
off
/
remote
switch to
remote
to
verify the 24 V DC remote signal connection
(if installed).
4 MAINTENANCE,
REPAIR AND
TROUBLESHOOTING
4.1 SYSTEM FAULTS
A failure in the pump motor that causes the motor
protection switch (MPS1 or MPS2) to trip will shut
down the respective heating system. A fault signal
will be transmitted. If this failure occurs, the
local
/
off
/
remote
switch must be switched to
off
and the
operator must press the
reset
button (or the MPS reset/
on button) to reset the fault. ( See SECOIO 3.1.3. )
If there is a failure that causes a high temperature to
occur, the high-limit temperature controller (TCR2 or
TCR4) will shut down the respective heating system,
including the pump motor. A fault signal will be
transmitted. To restart the system, the
local
/
off
/
remote
switch must be switched to
off
and then back
to
local
or
remote
to resume operation once the
fluid temperature drops below the high-limit preset ( See
SECOIO 3.2.3 . ). For additional troubleshooting, see
SECOIO 4.5 .
4.1.1 COOLANT FAULTS
A fault signal will be transmitted if:
•
The coolant pump motor protection switch is
tripped (MPS1).
•
The coolant high-limit temperature is
exceeded (TCR2).
4.1.2 OIL FAULTS
A fault signal will be transmitted if:
•
The oil pump motor protection switch is
tripped (MPS2).
•
The oil high-limit temperature is exceeded
(TCR4).