5 Preparation and Startup
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① While in Run mode, press A/M key to commence manual control. The SV display will then
show
H (heating control) or C (cooling control) and simultaneously display the MV to
indicate commencement of MV monitoring.
② If ◀, ▼, or ▲ is pressed while MV monitoring is in progress, the MAN lamp will turn on
and the last digit will start to flash to indicate activation of manual control.
③ Press the shift (◀) key to change the flashing digit (10
0
→ 10
1
→ 10
2
→ 10
3
→ 10
0
).
④ Select the digit and configure the desired MV value using the ▼/▲ keys.
⑤ To end manual control, press A/M key. The MAN lamp will turn off, and the system will
revert to auto control mode.
⑥ While in heating and cooling control mode, set the manual heating MV and then press A/M
key to see C (cooling control) and the current cooling MV value on the SV display
indicating commencement of cooling MV monitoring.
⑦ If ◀, ▼, or ▲ is pressed while MV monitoring is in progress, the MAN lamp turns on and
the last digit starts to flash to indicate activation of manual control.
⑧ Press the shift (◀) key to change the flashing digit (10
0
→ 10
1
→ 10
2
→ 10
3
→ 10
0
).
⑨ Select the digit and configure desired cooling MV value using the ▼/▲ keys.
⑩ To end manual control, press A/M key. The MAN lamp will turn off, and the system will
revert to auto control mode.
⑪ While in standard control mode (heating control or cooling control), pressing A/M key once
from the MV monitoring stage, or any other stage, will revert the system to auto control
mode.
⑫ During heating and cooling control mode, pressing A/M key once from the MV monitoring
stage, or any other stage, will skip the system to the cooling MV monitoring stage.
For heating and cooling control, the system reverts to auto control
after going through heating monitoring, manual heating control,
cooling monitoring, and manual cooling control stages in sequence.
Heating MV remains in effect during cooling monitoring and manual
cooling control.
TK4ST/SP (48WX48H) does not feature the A/M key. To switch
modes between auto and manual controls, press the MODE key
once.
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