Install Instructions

Part Number 550-142-902/1016
CGi
GAS-FIRED WATER BOILER — SERIES 3 — Boiler Manual
36
Check-out procedure — checklist
8
❏ Boilerandheatdistributionunitslledwithwater?
❏ Automaticairvent,ifused,openonefullturn?
❏ Airpurgedfromsystem?
❏ Airpurgedfromgaspiping?Pipingcheckedforleaks?
❏ Correctlysizedmanifoldoricesinstalled?Referto
Table 2,
page 12, to check size and fuel type.
 Correctlysizedmanifoldoricesmustbeused.
Failure to do so will cause severe personal injury,
death or substantial property damage.
❏ Followed operating instructions on boiler or in manual
Section9forproperstart‑up?
❏ Properburnerameobserved?RefertoCheck burner flame,
manualSection
7b.
❏ Test temperature limit — While burners are operating, turn
BoilerTe m p adjustmentknobcounterclockwiseuntildisplay
readingisbelowactualboilerwatertemperature.Burners
should go off while circulator continues to operate. Turn
BoilerTemp adjustmentknobclockwiseuntildisplayread-
ing is above boiler water temperature and ignition sequence
should resume.
❏ Test additional field-installed controls — If boiler has a low
water cutoff, additional high limit or other controls, test for
operationasoutlinedbymanufacturer.Burnersshouldbe
operating and should go off when controls are tested. When
controls are restored, burners should reignite.
❏ Test ignition system safety device:
a. Connectmanometertooutletsideofgasvalve.
b. Startboiler,allowingfornormalstart‑upcycletooc-
cur and main burners to ignite.
c. With main burners on, manually shut off gas supply at
manualmainshutoffgasvalve.Burnersshouldgooff.
d. Openmanualmainshutoffgasvalve.Manometer
should confirm there is no gas flow.
e. Pilot will relight, flame sensing element will sense pilot
flame and main burners will reignite.
❏ Set limit control(s)to systemtemperaturerequirements.
Adjust balancing valvesand controlsto provide design
temperature to system.
❏ SetEconomymode.
❏ For multiple zones, adjust flow so it is about the same in
each zone.
❏ Verify thermostat heat anticipator (if available) set
properly?Referto
Field wiring,manualSection6, page 31,
Thermostat(s).
❏ Cycleboilerwiththermostat—Raisetohighestsettingand
verifyboilergoesthroughnormalstart‑upcycle.Lowerto
lowest setting and verify boiler goes off.
❏ CycleDHWAquastatifused.
❏ Measurenaturalgasinput:
a. Operate boiler 10 minutes.
b. Turn off other appliances.
c. Atnaturalgasmeter,measuretime(inseconds)re-
quired to use one cubic foot of gas.
d. Calculategasinput:
3600 x 1000
number of seconds from step c
= Btuh
e. Btuhcalculatedshouldapproximateinputratingon
boiler rating label.
❏ Checkmanifoldgaspressurebyconnectingmanometerto
downstreamtesttappingonmaingasvalve.Manifoldpres-
surefornaturalgasshouldbe3.5"w.c.andforpropanegas
shouldbe10"w.c.
❏ Observe several operating cycles for proper operation.
❏ Setroomthermostattodesiredroomtemperature.
❏ FillinInstallationandservicecerticatebelow?
❏ Review all instructions shipped with this boiler with owner
or maintenance person. Return instructions to envelope and
give to owner or place in pocket inside front panel in boiler.
Installation and service certificate
Boilermodel__________________Series__________CPnumber___________Dateinstalled___________
MeasuredBtuhinput____________________
Installer________________________________________________________________________________
(company) (address) (phone)
Installer’ssignature:_____________________________________
❏ Installation instructions have been followed.
❏ Checkoutsequencehasbeenperformed.
❏ Aboveinformationiscertiedtobecorrect.
❏ Information received and left with owner/maintenance person