Final Control Settings; Maintaining Control Parameter Records - McQuay SWP 018 Installation And Maintenance Manual

Final control settings

When all of the start-up procedures have been completed, set
the individual control parameters for operation.
1. Unit switch S7 to AUTO.
2. Heating/Cooling control parameters set as required.
3. Alarm limits set as required.
4. Night setback parameters set as required.
5. Duct static pressure, building static pressure, as
required.
6. Economizer control parameters set as required.
7. Control timers set as required.
8. Date and time set as required.
9. Operating schedule set as required.
10. Holiday schedule set as required.
Note: See Operation manual per Table 1 on page 3, for the
keypad menu structure.

Maintaining control parameter records

After the unit has been checked, tested and started and the
final control parameters are set, the final settings should be
recorded and kept on file. This file should be updated when-
ever changes are made to the control parameters. This will
facilitate any required analysis and troubleshooting of the
system operation.
Figure 30. Drive Alignment
FIELD SUPPPLIED STRAIGHTEDGE
A
B
IM708
Figure 31. Belt Tension
Table 15. Recommended Pounds Force Per Belt
BELT
SECTION
A
B
BX
C D
5VX
SMALL SHEAVE
MINIMUM
DIA. (IN)
3.0 - 3.6 3.00
3.8 - 4.8 3.5
5.0 - 7.0 4.00
3.4 - 4.2 4.00
4.4 - 5.6 5.13
5.8 - 8.6 6.38
3.4 - 5.6 6.50
4.4 - 5.6 6.50
5.8 - 8.6 7.38
4.7 - 6.7 10.00
7.1 - 10.8 12.88
11.8 - 16.0 15.00
MAXIMUM
4.25
5.00
5.50
5.50
7.13
8.75
9.13
9.13
10.13
15.00
18.75
22.00
35