SmartPlate Installation, Operation & Maintenance Manual
CHAPTER 6
– SCHEDULED MAINTENANCE
OMM-0069_0H
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6.2 BOILER WATER DIFFERENTIAL PRESSURE GAUGE CHECK
Once each week check the Differential Pressure Gauge on the
unit’s Boiler Water Inlet as
follows:
BOILER WATER DIFFERENTIAL PRESSURE GAUGE CHECK Instructions
1. Refer to Figure 6-1 and locate the Differential Pressure Gauge.
2. Check to ensure that the Gauge reading is in the Green area on the dial.
3. If the Gauge is reading in the Red area of the dial, attach a hose to the blow-down valve at
the base of the Strainer. Cycle the blow-down valve open and closed 6 times.
4. If the Gauge still reads in the Red area on the dial, you may have too much boiler water
flow through the unit, or the strainer may be clogged. If the strainer has just been cleaned,
try reducing the flow rate. Refer to Chapter 8
–
Corrective Maintenance
to repair or replace
the Differential Pressure Gauge.
5. If the Gauge reading is in the Green area for 3 consecutive weeks, this maintenance task
can be performed monthly, instead of weekly.
Figure 6-1. Location of Components for Scheduled Maintenance
ECS
CONTROL
BOX
FEED FWD
TEMP SENSOR
CONTROL
VALVE
MXG-461
DOMESTIC WATER
INLET STRAINER
BOILER WATER
DIFFERENTIAL
PRESSURE GAUGE
DHW DUAL OUTLET
TEMP SENSOR
DRAIN VALVE
RECIRCULATION PUMP
BOILER
WATER INLET
STRAINER
INTAKE
MIXING BOX