09-06-01
Page 8 of 8 op-instruct-leedz-ib.doc
PRESSURE TESTING:
The pressures listed on the previous page can be tested using a manometer.
To attach manometer, first remove the top louver and side panels as shown in ‘Removing the Front
Door’.
This will expose the back of the control so manometer tubes can be attached to the pressure taps as
shown in Fig 4.
The inlet pressure can be adjusted via in line regulators in the supply to the heater, and the outlet
(operating)
pressure by adjusting the valves internal regulator. To locate the valves regulator
adjustment screw the plastic control cover must be removed from the front of the valve. This is done
by removing the bottom screw and inserting a small flat head screwdriver into the slot at the top on the
front of this cover and pulling the cover off.
Refer to fig. 4 below
