Simplex NORTHSTAR 125 KW, Manual

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6.4.2 Operation Maintenance
1. Visually observe correct fan operation and investigate any unusual
fan-related noises.
2. Check air intake for obstructions and confirm positive air flow.
3. Verify the “Normal” indicator is shown before proceeding.
6.4.3 Applying a Load
1. The HMI will display “XXXKW Available” in the “Available” section.
This number represents the
amount of load available. For a
single unit at 240V or 480V, this
value will be 100KW. The amount
of KW available will decrease as
lower voltages.
2. With the “Fan” switch set to
“On.” Turn the Load switch “On.”
This action will enable the load
(See Figure 5).
3. To set the load amount, select the “Entry” section. A number pad to
enter your load value will display (See Figure 6 Entry Pad). You cannot
enter a value larger than the “Available” KW.
4. After entering the amount of load to be applied, press Enter to apply
the load (See Figure 7). Pressing F4 or “MTR” on the HMI controller
will bring up the metering screen (See Figure 8 for a 3-phase
example).
Figure 5 Power On Figure 6 Entry Pad
Figure 7 Press Enter for Entry Figure 8 Metering Screen
NOTE
: If the load is selected
before the Master is on,
the load will activate
at once. If there is no
selected load when the
Master is turned on, the
load will be added when it
is selected.