Heat Controller DMH18DB-1 Service Manual page 23

REMOTE CONTROL PREPARATION(OPTIONAL)
HOW TO MOUNT ONTO A WALL
HOW TO INSERT BATTERIES HOW TO INSERT BATTERIES
Remove the battery cover from the remote con-
troller.
• Slide the cover according to the arrow direction.
Insert the two batteries.
• Be sure that the (+) and (-) directions are correct.
• Be sure that both batteries are new.
Re-attach the cover.
• Slide it back into position.
Flaring Work and Connection of Piping
• Do not use rechargeable batteries,
such batteries differ from standard dry
cells in shape, dimensions, and per-
formance.
• Romove the batteries from the remote
controller if the air conditioner is not
going to be used for some long time.
Service Manual 23