Soleus Air KFTHP-18-ID, KFTHP-18-OD, 3119233 With a vinyl tape, Temperature of refrigerant circuit

1Installation Instructions

NOTE

Piping Joints Thermal Insulation:

Wrap the piping joints with thermal insulation materials and then wrap

with a vinyl tape.			wrapped with vinyl type
The temperature of refrigerant circuit
	Thermal insulation
will be high, please keep the
interconnection cable away from the copper tube.
Piping Thermal Insulation:			Large pipe	Thermal insulation
a. Place the drain hose under the piping.
		Power cord		tube
b. Insulation material uses polythene foam over 3/8" in thickness.

Note: Drain hose is prepared by user.

Drain pipe should point downward for easy drain flow.

Do not arrange the drain pipe twisted, sticking out or wave around, do not immerse the end of it in water.

	Small
Power cord 1	pipe
(for heat-pump)

If an extension drain hose is connected to the drain pipe, make
sure to thermal insulated when passing along the indoor unit.				Defrost cable(for heat-pump)			Drain hose
When the piping is directed to the right, piping, power							(prepared by user)
Cord and drain pipe should be thermal insulated and
fixed onto the back of the unit with a piping connector.				Insert here
			large			large
			pipe			pipe
		drain	small		drain	small
		hose	pipe		hose	pipe
Base	Piping connector	Base		Piping fixer	Base		Hook here

A. Insert the pipe connector to the slot. B. Press to hook the pipe connector onto the base.

Connecting the refrigerant lines between the indoor& outdoor units

Note that since the refrigerant metering device is located in the outdoor unit,both refrigerant lines must be insulated with a minimum of 3/8" foam along the entire length.

Gently bend the line set stubs from the indoor unit to the desired location and the using 2 box end or adjustable wrenches,remove the flare nuts from the indoor unit line stubs.The indoor unit is charged with a dry gas.If you do not hear the release of pressure when removing the flare nuts,it is possible that the evaporator section(indoor unit)has developed a leak and you should contact your dealer for a replacement indoor unit.Note:Using a small amount of vacuum pump oil on the male flare threads will ease installation.Snug the line set to the stubs using the 2 wrenches-one wrench on the male fitting and one wrench on the female fitting.

Tighten flares to below torques:

Refrigerant Line Connection Torque Table

Flare Nut	Tightening Torque
1/4-3/8"	25 Ft.LBs(350 Kg.Cm)
1/4-1/2"	40 Ft.LBs(560 Kg.Cm)
1/2-3/4"	60 Ft.LBs(840 Kg.Cm)
7/8-1 1/8" “	110 Ft.LBs(1540 Kg.Cm)

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