Unit installation

July 2009 Application Note 1023

P a g e | 2

Figure 1: R410A P-Series Indoor Fan Cycle Off in Heat or Cool Mode with PAR-21MAA

Controller

Here are the 5 Steps to setting up the PAR-21MAA Controller displayed in Figure 1:

1. Press the airflow up/down (J) button and test (B) button at the same time for two

seconds

2. Wait for a few seconds until the small dashes start to flash then press the clock

button then the clock (C) buttons to change unit number to 01

3. Press the back (E) button then wait for a few seconds until the big dashes start to

flash then press the temperature up/down (F) button to change mode number to

25 for heating then the menu (G) button then the temperature up/down (F) button

to change the setting number to 2 then press the back (E) button until the

number stop flashing now it is set

4. Press the back (E) button then wait for a few seconds until the big dashes start to

flash then press the temperature up/down (F) button to change mode number to

27 for cooling then the menu (G) button then the temperature up/down (F) button

to change the setting number to 2 then press the back (E) button until the

number stop flashing now it is set

5. Press the airflow up/down (J) button and test (B) button at the same time for two

seconds to get back to normal display

Note: Use of the PAR-21MAA controller with M-series units for fan cycling is not

applicable.

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

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

APP-74