Installation Guide

44 Hydronic Air Handler Installaon and Operaon Manual
2. Remove the air handler access panel by removing the four
screws that secure the panel.
3. Locate the PC Board.
4. On the PC Board, remove the wire lead from the MTRtap (this
tap controls the fan motor speed). See in image below.
Default Setting Speeds
Model Speed
AH083CP
AH083P
Medium
AH084CP
AH084P
Medium
AH125CP
AH125P
Medium
AH166CP
AH166P
High
AH206CP
AH206P
High
Failure to not disconnect power can result in
electrical shock, personal injury or death.
WARNING
Fan Motor Speed Wire Lead Color Code
Speed Color
High Black
Medium Blue
Low Red
6. Connect the unused wire lead to the Blanktap.
7. Replace the air handler access panel.
The speed of the air handler is factory default set as per the table to
the right. To adjust speed settings, follow the steps below:
1. Disconnect power to the air handler.
5. Remove the desired wire lead from the Blanktap and place in the MTRtap (the Blanktap is
where unused fan motor speed wire leads are stored). See in image below. Refer to the
following table for wire lead color descriptions:
MTR Tap
(Controls fan
motor speed)
MTR
Blank
Blank Tap
(Stores unused fan motor
speed wire leads)