Install Instructions

17
VII. System Start-up
A. Safe operation and other performance criteria were
met with gas manifold and control assembly provided
onboilerwhenboilerunderwenttestsspeciedin
American National Standard for Gas-Fired Low-
Pressure Steam and Hot Water Boilers, ANSI Z21.13.
Figure 16: Sequence of Operation
B. Fill boiler with water to normal water line.
C. Prepare to check operation.
1. Obtain gas heating value (in Btu per cubic foot)
from gas supplier.
2. Adjust limit. Set cutout pressure (MAIN scale) on
the pressure limit for (1) PSI and differential
pressure (DIFF.) for .5 PSI. These pressures may be
varied to suit individual requirements of the system.
See Figure 25.
3. Connect manometer to gas manifold. Use 1/8 NPT
tapping provided.
4. Temporarilyturnoffallothergas-redappliances.
D. Follow Operating Instructions to place boiler in
operation. See Figure 21.
E. Sequence of Operation See Figure 16.
1. If boiler fails to operate properly, see
Troubleshooting Tree on pages 30 and 31.
2. Enhanced Electronic Ignition Module with single
Status LED indicator. See Figure 17A “ Location of
LED”.
Figure 17A: Location of LED
Table 10 “Ignition Module Terminal Cross-
reference” cross-references the ignition module
terminal designations to the ignition terminal
numbers in the wiring ladder diagrams.
Table 11 “ Green LED Status Codes” provides green
LED status codes and recommended service action
where applicable.
See Figure 18 for Troubleshooting Guide.
3. Flame Current Measurement Procedure
See Figure 17B “Measuring Pilot Flame Current
with Micro-ammeter”.