Check Venter Static Pressure - UTICA BOILERS USC Installation Manual And Operating Instructions

CHECK CHECK CHECK VENTER ST VENTER ST VENTER ST VENTER STA A A A A TIC PRESSURE
CHECK CHECK VENTER ST
(Refer to figure 18 below for the following instructions.)
1. With the boiler off, disconnect the orange and white tubings from the pressure switch
on the air box and venter motor.
2. Install a 3/16" (.48 cm) plastic barbed tee between a slope manometer and the
pressure switch. (
Additional tubing is required.) If the tubing is cut, replace it only with O.E.M. high
temperature silicone tubing.
or plastic tubing because it will melt.
3. The other part of the tee goes to the air box and venter pressure taps.
A. Orange being the high negative.
B. White being the low negative.
4. Turn the boiler back on and read the static pressure. The reading should be -
.55±.05 inches water column or higher for the USC series boilers.
5. If the static pressures are not at the minimum allowable level, check the intake and
exhaust pipes for obstructions or damage.
6. To reassemble, remove the tees and additional tubing and replace the orange tube
to the venter tap, and the white tube to the air box tap.
TIC PRESSURE TIC PRESSURE AS FOLL TIC PRESSURE
TIC PRESSURE
CAUTION CAUTION CAUTION: : : : : CAUTION CAUTION
CAUTION: : : : : CAUTION CAUTION
CAUTION CAUTION
FIGURE 18
PAGE 16
AS FOLLO O O O O WS: AS FOLL AS FOLL
AS FOLL
Do not cut original tubing.
Do not replace with vinyl
WS: WS: WS:
WS: