Columbia HERITAGE series, Инструкция по установке, эксплуатации и обслуживанию

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VIII. Operation
A.
Temperature Limit/LWCO Control
Refer to the HydroStat 3200 Installation Instructions
and Operating Manual included with these instructions.
B.
Electronic Ignition Module
See Figure 13 for electronic ignition (EI). Electronic
Ignition Modules with LED indicators. Table 2 cross-
references the ignition module terminal designations
to the ignition terminal numbers in the wiring ladder
diagrams. Table 3 provides green LED status codes
and recommended service action where applicable..
See Figure 13 for Location of LED. See Figure 16 for
Troubleshooting Guide.
Figure 13: Location of LED
Table 2: Ignition Module Terminal Cross-
Reference
Figure 14: Measuring Pilot Flame Current
with Micro-ammeter
Ignition Module
Terminal Designation
Wiring Ladder Diagram
Terminal Number
MV 1
MV/PV 2
PV 3
GND 4
24V (GND) 5
24V 6
SPARK SPARK
1. Flame Current Measurement Procedure. See
Figure 14 “Measuring pilot flame current with
micro-ammeter”
a. Pilot flame current in micro amps can be
measured using any standard micro-ammeter
by inserting the meter probes into the
module holes labeled FLAME CURRENT
as shown in Figure 14.
b. Flame current must be measured with pilot
valve open/pilot lit but the main valve
closed.
c. Disconnect MV lead wire from the module
before measuring flame current. Trying to
measure the pilot flame current in series
with the wiring will not yield the accurate
reading.
d. The minimum steady pilot flame signal
must be 1 μAmp (microampere) DC (direct
current).
e. For reliable operation the flame current
should be 2 μAmp or greater .
f. To ensure adequate flame current :
i. Turn off boiler power at circuit breaker
or fuse box
ii.
Clean the flame rod with emery cloth if
required
iii. Make sure electrical connections are
clean and tight, and wiring not damaged,
repair/replace as needed
iv. Check for igniter/sensor cracked ceramic
insulator, replace if needed