ECR International ULTIMATE PF Series, Руководство по установке и эксплуатации

Страница: 25 / 44

25
falls to the same temperature as the boiler water.
Adjust the post purge timer to nearest time interval,
always rounding up if possible. For example, if the
time measured is 3 minutes and 20 seconds, then
set the post purge timer at 4 minutes.
Whenever the nozzle is removed for service, check
for varnish forming on the outside of the nozzle. If
carbon and varnish do not wipe off easily, increase
the post purge time.
15. LIMITED RECYCLE AND LIMITED RESET: The
Honeywell R7184P1031 interrupted-duty primary
control utilizes two safety features to protect the
boiler from being saturated with oil. Limited recycle
will allow the burner 3 attempts to ignite, if ignition
is unproven the control locks out. The control’s
reset button can then be pressed. The limited reset
feature will allow the burner to be reset 3 times
before it locks out. To unlock the control requires
the reset button to be held for 30 seconds.
16.
ELECTRICAL WIRING:
Wiring should conform
with the latest edition of the National Electrical Code
ANSI/NFPA No. 70 in the United States and the CSA
C22.1 Canadian Electrical Code in Canada and/or
the local authority having jurisdiction. A separate
electrical circuit should be run from the entry box
with a fused disconnect switch in this circuit. Refer
to wiring diagrams for suggested circuitry and
field wiring. Wiring for zone valve installations are
furnished with zone valve packages.
Complete installation must be made in
accordance with the requirements of the local
authorities and the National Fire Protection
Association.
INDOOR DIRECT EXHAUST BOILERS
L8151 CONTROL SETTINGS
High Setting ................... 180°F
Low Setting .................... 160°F
Differential ....................... 20°F
These settings may be altered based on the heating
system response. During very cold weather if the
heating system does not provide quite enough
heat, the high limit control setting may be raised
to a maximum of 200°F. If more domestic hot
water is required, the low limit control setting may
also be raised to a maximum of 180°F. Whenever
adjusting either the high or low limit the high limit
control differential control setting is typically 20°F
above the low limit. The differential control setting is
typically 20°F but may be adjusted to vary the time
it takes the burner to respond to a call for domestic
hot water.
With all high efficiency boilers, care must be taken
to minimize condensation. Therefore, cold standby
is not recommended and may be used only with a
piping bypass as shown in Figure 6. This requires
a change in control wiring. Please contact factory
prior to making that change. When cold standby is
not utilized, the homeowner might possibly object to
the burner starting when space heat is not required.
To avoid this, an optional outside thermostat may
be used to shut down the system totally when
outside temperature is above a specific limit set by
the homeowner.