TM 9-4520-271-14
0015 00
INSTALLATION INSTRUCTIONS - Continued
Installation of Equipment
1.
Unwrap power cable (1) and lay aside.
2.
Loosen four screws (2) and remove supply duct cover assembly (3) and return duct cover assembly (4).
NOTE
ASH may be operated either in a closed loop or a 100% fresh air configuration. Check with the operator
for intended use prior to connecting the return air hose assembly to the ASH.
3.
For recirculating air setup, refer to step 4. For 100% fresh air setup, refer to step 5. For external fuel connection, refer to
step 6. For power cable adapter connection, refer to step 7.
4.
For recirculating air setup, proceed as follows:
CAUTION
Supply and return air hose assemblies may have smooth bends when connected properly. Be careful to
avoid sharp bends which will restrict airflow. Restrictions will cause improper operation or damage to
equipment.
NOTE
Arrows on the supply and return air hose assemblies indicate the direction of the airflow.
a. Connect supply air hose assembly (5) to ASH (6) and to shelter connection. Tighten two clamps (7) securely.
b. Connect return air hose assembly (8) to ASH (6) and to shelter connection. Tighten two clamps (7) securely.
c. Fresh air can be introduced into ASH by adjusting fresh air damper assembly (9). This can be accomplished at initial
setup or by operator at a later time.
5.
For 100% fresh air setup, proceed as follows:
CAUTION
Supply and return air hose assemblies may have smooth bends when connected properly. Be careful to
avoid sharp bends which will restrict airflow. Restrictions will cause improper operation or damage to
equipment.
a. Connect supply air hose assembly (5) to ASH (6) and to shelter connection. Tighten two clamps (7) securely.
b. Do not connect return air hose assembly (8) to ASH (6).
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