Mitsubishi Electric CITY MULTI PAC-AH001-1 Manuel D'installation page 40

Signal
Electric Heater
Signal Output
X: Relay (field supply)
Voltage: 12 VDC
Max Power: 1 W
Error Signal Remove the short circuit when the
Input error input is used
Contact Input
(Initial with Jumper)
Contact
- Short (initial): Normal
- Open: Error (code 4109)
Specifications are subject to change without notice.
PAC-AH001-1
Connection Circuit
Use a relay when wire
length exceeds 10 m
40
Signal Details
• AHU controller will output an
electric heater operation signal
corresponding to electric heater
logic. See service manual for more
details.
• Electric heat will only operate when
DIP SW are set for AHU Controller
to operate in Return Air Control.
CAUTION
· Heater output
should only be used
as a signal to
interface with 3rd
party controls.
· Heater output
signal should not be
used to provide
power to air handler
peripherals.
• Normally closed input.
• When open circuit, error code 4109
occurs.