Unit installation

July 2008 Application Note 1005

P a g e | 2

1. All MSZ indoor units must be powered from the outdoor unit.

(Indoor unit cannot be powered from a separate source).

2. MXZ outdoor unit power is 208/230 VAC circuit using a two-conductor wire with

ground.

3. Each indoor unit is powered from the outdoor unit from a terminal blocked marked to

the specific indoor unit.

4. Connect the indoor unit to the outdoor unit on terminals S1, S2, S3 and ground. Use

copper conductors only.

5. A three-pole disconnect switch may be used for shut off or service between the indoor

and outdoor unit. (3 pole switch part # TAZ-MS303)

Remark: *A disconnect switch may be required at the indoor unit. Check the local

code.

** Use a ring tongue terminal in order to connect a ground or AWG 12 wire to

terminal block.

Figure 1. 3 pole switch part # TAZ-MS303

Due to continuing improvement, above specification may be subject to change without notice.

2013 P-Series and M-Series - Application Notes (June 2013)

APP-12