Trane Axiom GEH-E006 - Removing Speed-Tap Wire; Wire; Hole Plug Installation; Airflow Adjustment

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1. Remove service access panel at the unit front.
2. Find the blower motor relay. The relay location is
consistent in all control configurations.
Figure 60. Relay location (GEH)
Removing Speed-tap Wire
1. For units w/o Hot Gas Reheat: Remove undesired
speed-tap wire from 1K4 relay at spade 3. Wire tie
the lead, to eliminate a short.
2. For units with Hot Gas Reheat: Remove undesired
speed-tap wire from 1K8 relay at spade 6. Wire tie
the lead, to eliminate a short. Hot Gas Reheat
requires both speed taps to be adjusted to enable
reheat as the lower speed tap.
Connecting Desired Speed-tap Wire
1. For units without hot gas reheat, select desired
speed-tap wire. Connect desired speed tap wire to
1K4 relay at spade 3.
2. For units with hot gas reheat, select desired speed-
tap wire. Connect desired speed tap wire to 1K8
relay at spade 6.
3. Install service front panel. Reconnect power to the
unit.
Table 42. .4-speed motor (115, 208, 230, 265)
Lead Colors
Lead Black Blue
Orange
Red
Speed High
Medium
High
Medium
Low
Low
Table 43. 3-speed motor (380, 415, 460)
Lead Colors
Lead Black Blue
Orange
Speed High
Medium Low
NNoottee:: When using the medium or low speed tap, the
purple wire must be jumpered to the high speed
tap (blk).
Table 44. 2–speed motor (575)
Lead Colors
Lead Black Blue
Speed High
Low
Hole Plug Installation
1. Locate two Hayco plastic plugs enclosed with the
Installation, Operation and Maintenance manual.
2. Use these plugs to plug the two shipping bolt holes
in the bottom of the units after shipping bolt
removal.
Airflow Adjustment
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NNoottee:: GEH/V 6 to 25 ton units only.
To increase cfm, loosen the turns open set screw on
the sheave, and turn the sheave clockwise. To decrease
cfm, Loosen the turns open set screw on the sheave,
and turn the sheave counterclockwise.
To increase belt tension, loosen the adjustment bolt
and pull motor mounting plate back until the belt is
tight. Tighten the adjustment bolt after the belt has
reached the desired tension.
See the figure below for fan motor and sheave
adjustment.
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