NEC RIH-3267, RIH-2667 user manual Piping Thermal Insulation, Piping Connection

Installation instructions

Piping Joints Thermal Insulation: Wrap the piping joints with thermal insulation materials and then wrap

with a vinyl tape.		wrapped with vinyl type
	Thermal insulation
Piping Thermal Insulation:
a. Place the drain hose under the piping.	Power connecting cord	Large pipe Thermal insulation
b. Insulation material uses polythene foam over 6mm in thickness.		tube

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.

If an extension drain hose is connected to the drain pipe, make sure to thermal insulated when passing along the indoor unit.

Small pipe

Drain hose (prepared by user)

When the piping is directed to the right, piping, power Cord and drain pipe should be thermal insulated and fixed onto the back of the unit with a piping fixer.

				Insert here
			large			large
			pipe			pipe
		drain	small		drain	small
		hose	pipe		hose	pipe
Base	Pip g fixer	Base		Piping fixer	Base	Hook here
A. Insert the pipe fixer to the slot.		B. Press to hook the pipe fixer onto the base.

Piping Connection:

a. Connect indoor unit pipes with two wrenches. Pay special attention to the allowed torque as shown below to prevent the pipes, connectors and flare nuts from being deformed and damaged.

b. Pre-tighten them with fingers at first, then use the wrenches.

Model	Pipe size	Torque	Nut width	Min.thickness
9,12K	Liquid Side (1/4 inch)	1.8kg.m	17mm	0.6mm
9K	Gas Side (3/8 inch)	3.5kg.m	22mm	0.6mm
12K	Gas Side (1/2 inch)	5.5kg.m	24mm	0.6mm

Note: The connection pipe will be provided or purchased by customer.

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