Weil-McLain SVF 1500 Manual page 90

SVF
™
Series 1
Commercial Condensing Gas-Fired Water Boiler — Boiler Manual
Startup procedure
Figure 82
Gas valve test pressure tapping
Use port #2 for gas
pressure measurement
2
Gas valve leakage testing
DO NOT connect a manometer to the manual gas valve or
the automatic gas valve. Th e high vacuum from the blower
could pull fl uid into the gas line, possibly damaging the gas
valves.
1. Refer to the gas valve manufacturer's instructions for the procedure
to test the valve.
2. To operate the two valve solenoids independently, navigate to the
Gas Valve Test Screen on the Control (see Figure 62, page 71 for
access sequence).
3. When in the Gas Valve Test Screen, you will see two options:
a. Open Gas Valve 1
b. Open Gas Valve 2
4. To open only gas valve 1, highlight it and press enter/save.
5. While still in the Gas Valve test screen, give the boiler a call for heat.
Th e boiler will go through it's normal Ignition sequence, but will
only open Gas Valve 1.
6. Aft er gas valve 1 has opened, end the call for heat.
7. Th is procedure can be repeated by selecting and entering Open
Gas Valve 2.
8. Aft er the testing is complete and the call for heat has been removed,
use the back butt on to exit the Gas Valve Test Screen. Th is will then
reset the control to open both Gas Valves for any call for heat.
90
(continued)
1
3
Verifi cation check list
❏ Verifi ed that the control is programmed correctly?
❏ Verifi ed that boiler and heat distribution units fi lled with
water?
❏ Verifi ed water chemistry per page 85 ?
❏ Automatic air vents, if used, opened one full turn?
❏ Air purged from system?
❏ Air purged from gas piping? Piping checked for leaks?
❏ Filled condensate trap with water?
❏ Th ermostat circuit wiring checked to ensure there are no
stray voltages?
❏ Followed Operating Instructions, Figure 83, page 91 .
❏ Burner fl ame and combustion verifi ed per page 88 ?
❏ Verified control operation for space heating and DHW
(if used) per this manual?
❏ Tested additional fi eld-installed controls? Verifi ed controls
cause automatic reset or manual reset lockout as desired.
❏ Set additional fi eld-installed limit control(s) to system tem-
perature requirements?
❏ Adjusted balancing valves and controls to provide design
temperature to system?
❏ For multiple zones, adjusted for correct fl ow in each zone?
❏ Verified thermostat heat anticipator (if available) set
properly (see page 53 for requirements)?
❏ Cycled boiler with thermostat (and with DHW aquastat,
if installed) — Raised to highest sett ing and verifi ed boiler
goes through normal startup cycle? Lowered to lowest
sett ing and verifi ed boiler goes off ?
❏ Measured natural gas input?
❏ Checked incoming gas pressure as specifi ed on page 47 .
❏ Observed several operating cycles for proper operation.
❏ Set room thermostat to desired room temperature and
DHW
aquastat, if installed, to desired DHW storage temperature)?
❏ Reviewed all instructions shipped with this boiler with owner
or maintenance person?
❏ Filled in
❏ Filled out the warranty registration card and send to
Weil-McLain?
❏ Return instructions to envelope and give to owner or placed
inside boiler housing. Instructions must be available for all
service and adjustment of the boiler.
on page 121 ?
Part number 550-100-250/0819