Balcar R410A service manual Drain-up, Connection of the drain hose, Check of water drain, 109

Drain-up

If down-slope cannot be set on a drain pipe, drain-up is possible.

•Set the height of drain pipe 550mm or less from the bottom face of the indoor unit.

•Pull out the drain pipe from connecting port of the drain pipe of the indoor unit by 100mm or shorter, and stand up it vertically.

•After standing up it vertically, arrange immediately so that it is set with down-slope.

RAV-SM560, 561, 800, 801BT-E RAV-SM1101, 1401BT-E

100mm or	-up: 550mm or less
	Standing
shorter
Indoor unit

Connection of the drain hose	As long as possible (Approx. 100mm)
• Insert the drain hose completely into
the connecting port of the drain pan.	VP 30		VP 30		VP 30
• Apply thermal insulation surely to the
drain hose with socket thermal insulation seal.
		VP 30 or more		Downward grading
				1/100 or more

Extended ventilating pipe

Check of water drain

After drain pipe work, check that water is drained and there is no water leak from pipe connection portion. In this time, also check there is no trouble of motor sound of the drain pump. Be sure also to perform this check when installing the unit in heating time.

After electric piping work

•Before installing a panel, infuse water as shown in the following figure. By operating the unit in COOL mode, check that water is drained from the drain pipe and then check there is no water leak from the drain pipe.

Before electric piping work

•Pull out the float switch connector (3P: Red) from

connector (CN34: Red) on P.C. board of the electric parts box. (In this time, be sure to check the power has been turned off.)

•Connect 200V single-phase to R and S of the power supply terminal block. (Never apply 200V to

A , B , U1 , and U2 of the terminal block, otherwise it causes a trouble of P.C. board.

•Infuse water followed to the figure below. (Water amount: 1500cc to 2000cc)

•The drain pump automatically operates by power-on. Check that water is drained from the drain pipe and then check there is no water leak from the drain pipe.

•After checking water drain and water leak, turn off the power, connect the float switch connector to the original position (CN34) of P.C. board, and then return the electric parts box to the original position.

Insert the end of hose	Service plate
up to the near of suction
port of drain pump.

200–240V ~ single-phase

R S

White

Black Red

Black

Pull out CN34 connector from P.C. board.

– 109 –