ARTC-SVX006A-EN
35
1. Trending variables instantaneous values according to
cursor position. Current cursor timestamps are
displayed as well.
2. Text box to select viewing time span. It’s used for
zooming in on trends time axis. Options for selection:
3. Maximum and Minimum thresholds for trends viewing.
Used for zooming in on trends variables axis. Both
Maximum and Minimum thresholds are adjustable via
respective numeric boxes. Default Min / Max values: –
10.0 / 160.0. ‘Default Span’ button is used to revert to
defaults, so as to reset longitudinal zooming.
4. “Scroll to Time” button is used to return to real time
viewing.
5. Cursor positioning buttons.
6.
Buttons used to scroll back and forth in time. They
implement time axis trends pages scrolling.
7. Buttons used to scroll back and forth in time. High
resolution time axis scrolling.
8. Button is used to pause / resume real-time trending.
Operator Tasks
Before operating the unit, ensure that all compressor
refrigeration service valves are fully back-seated
counterclockwise.
NOTICE
Compressor Damage!
Failure to properly back-seat rotalock valves can
cause compressor failure.
Verify the circuit breakers on the module electrical
panel are turned to OFF position prior to applying
power.
Normal Power Up
The following procedure is used for a startup resulting from
scheduled seasonal or programmed cold shut down of the
heat pump.
WARNING
Hazardous Voltage!
Failure to disconnect power before servicing could
result in death or serious injury.
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power can not be
inadvertently energized. Verify that no power is
present with a voltmeter.
Important:
This start-up procedure is not to be used for the
first-time initial startup for a newly installed
heat pump. See Preparation for Initial Startup
in the Installation section of this manual for
instructions regarding that situation.
1. De-energize the heat pump using standard lockout/
tagout procedures.
2. Using a known operational voltage meter, test and
confirm the heat pump is de-energized before
proceeding further.
3. Inspect power distribution fuses and overload settings
to verify they are correct.
4. Verify that the oil level is correct in each compressor
using the compressor sight glass.
Note:
See recommended inspection interval in the
maintenance section of this manual.
NOTICE
Compressor Failure!
Failure to follow instructions below could result in
catastrophic compressor failure.
Do not operate with insufficient oil.
5. Verify that pressure and temperature switches are
closed.
6. Restore power to all modules.
7. Inspect refrigerant pressures for each module using the
touchscreen interface panel.
8. Verify that pressure switches and thermostats have the
correct cut-in and cut-out settings using the
touchscreen interface panel.
9. Verify heat pump water flow to condenser and
evaporator.
10. Monitor and record temperature and refrigerant
pressures registering on the touchscreen interface
panel.
Emergency Power Shutdown
The heat pump does not include a disconnect switch as
standard to turn off the high voltage to the modules. As per
NFPA 70, The National Electrical Code, a disconnect must
be installed within the line of sight of the electrical and
control panel. Should an emergency condition arise, the
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