II - 41
Checking mode changes
For these checks select a mode that is different from the mode in which the performance checks were
carried out.
Press the HOME (S004) key to display the menu item num-
ber. “
” (Figure 27)
Next, press the UP (S005) or DOWN (S006) key to select
menu item number “
” (Figure 28)
After “
” has been displayed, display the test run/
forced setting display “
”. While in test run/forced
setting display press the SET (S007) key. (Figure 29)
When the SET (S007) key is pressed in the test run/forced
setting, the display changes. Use the UP (S005) or DOWN
(S006) key to select the forced cooling test run mode “
” or forced heating test run mode “
”. (Figure 30)
• When in heating mode change to cooling mode
• When in cooling mode change to heating mode
When in the forced test run setting mode, press the SET
(S007) key for longer than 1 second and the mode changes to
cooling (heating) test run. At this stage check the following.
• The thick tubes are hot when heating mode is selected (do
not touch the tubes with your bare hand)
• The thick tubes are cold when cooling mode is selected.
Stopping the test run
Press the HOME (S004) key to display the menu item num-
ber. “
” (Figure 27)
Next, press the UP (S005) or DOWN (S006) key to select
menu item number “
” (Figure 28)
After “
” has been displayed, display test run/forced
setting “
”. In test run/forced setting display press the
SET (S007) key. (Figure 29)
When the SET (S007) key is pressed when the status is test
run/forced setting display, the display changes. Use the UP
(S005) or DOWN (S006) key to select the forced cooling test
run mode “
”, or the forced heating test run mode “
”. Then press the SET (S007) key for longer than 1
second. The TEST/WARNING indicator (red LED (D052)
goes off, and the state returns to forced setting selection.
(Figure 30)
If as a result of the above a fault has been detected, carry out an
investigation, correction or improvement in accordance with the separate “Service and Technical Reference Manu-
al Type M1 Series, Troubleshooting.”
(2) Completion of operations
Check again that there are no omissions in the test run check list record, or that there are no malfunctioning items.
Figure 27
Figure 28
Figure 29
Figure 30
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