Heat Controller DMH18DB-1 manual Connectionmethod ofthe connectingcableExample, Service Manual

Connecting the Cable between Indoor Unit and Outdoor Unit

Connectionmethod ofthe connectingcable(Example)

(1)Remove two-caps on the conduit panel. (for low voltage line)

(2)Pull out connection cable through conduit.

(3)After conduit to the panel, fix nut to the opposite side of panel

(4)Pass the conneciton cable through the hole

(5)Properly connect the cable on the terminal block

(6)Fix the connection cable with cord clamp provided on the unit not to have strain at the terminal when the connec- tion cable is pulled outside up to a 35 pound weight.

WARNING: Loose wiring may cause the terminal to overheat or result in unit mal- function. A fire hazard may also exist. Therefore, be sure all wiring is tightly con- nected.

When connecting each power wire to the corresponding terminal, follow instructions "How to connect wiring to the terminals" and fasten the wire tightly with the fixing screw of the terminal plate.

Power supply cable

Lock nut

Power supply line

(1ø, 230/208V)

Conduit panel

Terminal block

Connecting cable

Cord clamp

Cap(Remove)

Hole

(for low voltage line)

Taping

(for sealing)

Low voltage line (connecting cable)

How to connect wiring to the terminals High voltage

For strand wiring

(1)Cut the wire end with a wire cutter or wire-cutting pli- ers, then strip the insulation to expose the strand wiring about 10mm(3/8").

(2)Using a screwdriver, remove the terminal screw(s) on the terminal plate.

(3)Using a round terminal fastener or pliers, securely clamp each stripped wire end with a round terminal.

(4)Position the round terminal wire, and replace and tighten the terminal screw using a screwdriver.

Strand wire

10mm(3/8")Strip	Round
	terminal

Low voltage

Loosening the	Fastening the
terminal block screw	wire tightly
Connecting cable	Connecting cable

Service Manual 27