WARNING
Proper Field Wiring and Grounding
Required!
Failure to follow code could result in death or serious
injury. All field wiring MUST be performed by qualified
personnel. Improperly installed and grounded field
wiring poses FIRE and ELECTROCUTION hazards. To
avoid these hazards, you MUST follow requirements for
field wiring installation and grounding as described in
NEC and your local/state electrical codes.
Installation
60
WSHP-SVX01W-EN
1. Remove service access panel at the unit front.
2. Find the blower motor relay. The relay is located in
. The relay location is consistent in all
control configurations.
Figure 58.
Relay location
Removing Speed-tap Wire
3. 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.
4. 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
5. For units without hot gas reheat, select desired speed-
tap wire. Connect desired speed tap wire to 1K4 relay
at spade 3.
6. For units with hot gas reheat, select desired speed-tap
wire. Connect desired speed tap wire to 1K8 relay at
spade 6.
7. Install service front panel. Reconnect power to the unit.
Table 41. 4-speed motor (115, 208, 230, 265)
Lead Colors
Lead
Black
Blue
Orange
Red
Speed
High
Medium High
Medium Low
Low
Table 42. 3-speed motor (380, 415, 460)
Lead Colors
Lead
Black
Blue
Orange
Speed
High
Medium
Low
Note:
When using the medium or low speed tap, the purple wire must be
jumpered to the high speed tap (blk).
Table 43. 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 GEV*/EXV* units after shipping bolt
removal.
Airflow Adjustment
Note:
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
for fan motor and sheave adjustment
WARNING
Rotating Components!
Failure to disconnect power before servicing could
result in rotating components cutting and slashing
technician which could result in death or serious injury.
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power can not be
inadvertently energized.
Содержание Axiom EXH Series
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