Leslie Controls NYC Heat Exchanger - Manual (Page 24)

Page 24 of 25
12. Set the front and back aquastat thermal switches for
proper temperature setting.
13. Supply proper steam pressure to the unit.
14. Wait until the system stabilizes and then run procedure
to set
GAIN VALVE SETTING PROCEDURE
1. Ensure all connections are made and unit is
running at specified maximum flow.
2. Turn off supply of water to one side. Half of
specified maximum flow is now being
delivered.
3. Check outlet water temperature and ensure it is
120 degrees F.
4. If warmer then turn gain valve handle
counterclockwise for ¼ turn.
5. Recheck water temperature and repeat until
reaching desired temperature.
6. Note: Temperature will not change quickly and
must be left to seek its normal setting.
7. If the water was colder then turn the gain valve
handle clockwise for ¼ turn.
8. Recheck water temperature and repeat until
reaching desired temperature.
9. Turn on the supply of water to side turned off.
Wait for the system to stabilize.
10. Repeat step 2 through 9 for the second side.