Panasonic Urban Multi MX1R Series Service Manual page 622

PACD011001C2
∗ If demand controlling using input B:
Position
∗ Forced thermostat OFF command
Forces indoor unit to run the fan only.
∗ Forced temperature shift
Raises preset temperature 2°C when cooling, and lowers 2°C when heating.
Note: For zone control, because the units run when RY1 is ON and go off when RY1 is OFF, when in the last
command priority mode, some units remain off during operation. At this time even if input A is ON,
operation goes off and all units stop running.
D) If operating by two inputs using instantaneous input for input A and B (Use instantaneous input of min.
200 msec ON time.):
Position
Note: With positions 7~A, if constant input is used there is a forced OFF function (input A disregarded). With
position B, constant input cannot be used for input B.
Display Signal
Normal operation output terminals (W1, W2) and malfunction output terminals (W3, W4) are no voltage,
Fetch constant contact output.
(Allowable current is 10 mA~3 A per contact.)
Output for each system is as given in the table below.
System
Individual control
or individual
display
Group control
Zone control
Appendix
Function of input A
C Remote controller inhibit
(Same as position 5)
D
E Individual (Same as
position 6)
F
Function
7 Remote controller inhibit ON (remote controller normally
8 Centralised priority
9 OFF by remote controller
enabled
A Remote controller
enabled / OFF
B Individual
Output Both RY1 and RY2 OFF
OFF
OFF
All OFF
Function of input B
Forced thermostat OFF command
Forced temperature shift
Forced thermostat OFF command
Forced temperature shift
Contents of input A when ON
inhibited)
ON + remote controller enabled
ON + OFF by remote controller only
enabled (ON by remote controller
inhibited)
Remote controller only enabled (ON by
remote controller inhibited)
ON (remote controller normally enabled) OFF (remote controller normally
Only RY1 ON
Normal operation
All normal operation
Even one unit operating
normally without malfunction
Interface Adaptor
Contents of input B when ON
OFF + remote controller inhibited
enabled)
Only RY2 ON
Stop due to malfunction or
transmission malfunction between
adaptor PC board and indoor unit
Even one unit stopped due to
malfunction or transmission
malfunction between adaptor PC
board and indoor unit
Even one unit stopped due to
malfunction or transmission
malfunction between adaptor PC
board and indoor unit
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