Operating instructions

16
Part Number 550-142-784/0812
GWA Series 2 Gas-Fired Water Boilers – Boiler Manual
6 Start-up continued
Check system and boiler
 Eliminateallsystemleaks.Continualfreshmakeup
waterwillreduceboilerlife.Mineralscanbuildup
insections,reducingheattransfer,overheatingcast
iron,andcausingsectionfailure.
 Ifyoudiscoverevidenceofanygasleak,shutdown
theboileratonce.Findtheleaksourcewithbubble
test and repair immediately. Do not start boiler again
until corrected. Failure to comply could result in
severe personal injury, death or substantial property
damage.
Do not use petroleum-based cleaning or sealing
compounds in boiler system. Severe damage to boiler
will occur, resulting in substantial property damage.
1. Checksystempipingforleaks.Iffound,shutdownboilerand
repair immediately.
Operate boiler
DO NOT proceed with boiler operation unless
boiler and system have been filled with water and
allinstructionsandproceduresofpreviousmanual
sections have been completed. Failure to do so
could result in severe personal injury, death or
substantial property damage. Before starting the
boiler . . .
• See manual Section 10 for spark-ignited pilot
“Operating Instructions” procedure (see Table 6,
below).
• Verify the boiler and system are full of water (or
glycol/watermixture,ifused).
• Verifythe“Preparation”proceduresofpage 15 have
been completed.
Adjust boiler control settings
BOILER OPERATING TEMPERATURE
With power turned on, control module receives a signal from the
temperature sensor. The control knob labeled BOILER TEMP
is used to adjust the operating temperature setpoint, turning
clockwise to increase temperature setting and counterclockwise
to decrease.
•ADJUST BOILER OPERATING TEMPERATURE TO
DESIRED SETPOINT.
BOILER ECONOMY SETTING
To comply with Department of Energy regulations, the control
module circulates available hot water before turning on the boiler
to attempt to satisfy a call for heat. While attempting to satisfy
the heat demand, the control module also monitors the boiler
temperature changes via the temperature sensor and determines
whether or not the available hot water will satisfy the demand,
adjusting the time delay to turn on the boiler until it determines
that additional heat will be needed. The knob labeled ECONOMY
ADJUST provides an adjustment between maximize (MAX) and
minimize (MIN) the delay. The maximum (MAX) adjustment
position should be used to maximize energy savings. Turning the
knob counterclockwise decreases the delay time and should only
be used in the event that the heated space becomes uncomfortable.
•ADJUST ECONOMY TO DESIRED POSITION (MAX ISTHE
PREFERRED SETTING).
IMPORTANT
In accordance with Section 325 (f) (3) of the Energy Policy and
Conservation Act, this boiler is equipped with a feature that saves
energy by reducing the boiler water temperature as the heating
load decreases. This feature is equipped with an override which
is provided primarily to permit the use of an external energy
management system that serves the same function.
THIS OVERRIDE MUST NOT BE USED UNLESS AT LEAST
ONE OF THE FOLLOWING CONDITIONS IS TRUE:
• An external energy management system is installed that
reduces the boiler water temperature as the heating load
decreases.
• This boiler is part of a modular or multiple boiler system
having a total input of 300,000 BTU/hr or greater.
• This boiler is equipped with a tankless coil.
Start the boiler
Follow the “Operating Boiler Instructions”from:
• Spark-ignitedpilotboilers—SeeSection 10.
Removeboilerjacketdoorandnotethegasvalvemanufacturer
and model number.
Ifboilerfailstostart,see“Ifboilerdoesn’tstart...Checkfor:”
on this page.
GWA Spark-ignited pilot Page
Honeywell VR8200/VR8300
White-Rodgers 36C
White-Rodgers 36E
23
Robertshaw 7200 24
Table 6 Operating instruction locating guide