Weil-McLain Evergreen EVG 110, Руководство пользователя

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Annual startup
(continued)
9. Write down the blower RPM value. It should be within
200 RPM of the value given in Figure 90 .
10. If any of the values are outside the ranges listed in
the previous steps, contact the factory for technical
assistance.
Minimum and maximum blower speeds can
be adjusted within limits, but changing speeds
will affect AFUE ratings.
Check fl ue gas temperature
1. Set the boiler to high fi re. Then adjust the EVG
control display to view fl ue gas temperature and
boiler return temperature.
2. The fl ue gas temperature should be no more than
50°F higher than the boiler return temperature.
3. If the fl ue temperature is higher than this, shut down
the boiler, allow to cool, and follow the procedure
starting on page 117 to clean the heat exchanger.
Manual Test Mode for Single
and Multiple Boilers
Single Boiler
1. Navigate to Manual Test Mode screen under
DIAGNOSTICS menu.
2. Generate a call for heat and wait until the burner is lit,
if not yet in operation.
3. Press ENTER and select the desired FORCE RATE. Rate
will be forced to setting for 10 minutes.
Multiple Boiler Running
1. Generate a call for heat on a Network Priority or a
Local Priority
a. Local Priority—allows Force Rate only on the
boiler with the call for heat. Follow Single Boiler
procedure, above.
b. Network Priority—allows Force Rate on any boiler
in the network. Follow procedure outline below
in steps 2-5.
2. On the Master boiler, navigate to Manual Test Mode
screen under DIAGNOSTICS menu. Select desired
boiler to be tested.
3. The Manual Test Mode screen will automatically appear
on the boiler you selected. On the selected boiler’s
control, press ENTER and select the desired FORCE
RATE (HIGH, MED, OR LOW).
When forcing a rate on a Network Priority
call, only boilers running Local Priority
calls will remain on. All other boilers
on the network will not fi re until the
Manual Test has ended. Ensure critical
applications remain heated. Long periods
of low heating can cause property damage.
4. The selected boiler will run at the forced rate until it is
either returned to AUTO, the user selects “End Manual
Test” on the Master’s Manual Test Mode screen, or after
30 minutes of inactivity on the Master control.
5. To test the next boiler, return to the master and select
the next desired boiler to test.
Figure 90 Firing rates and corresponding blower speeds (low
fi re, ignition, and high fi re) — for altitudes up to 5,500
feet and high altitude (above 5,500 feet)
Part number 550-100-191/0917
105
®
g
as-fired water boiler —
70/110/155
Boiler Manual
EVG
Model
70 110 155
% RPM Btu/Hr
Note 1
% RPM Btu/Hr
Note 1 % RPM Btu/Hr
Note 1
Low fi re
Minimum
setting
20 1,100 14,000 20 1,900 22,000 20 1,300 28,000
Factory
setting
20 1,100 14,000 20 1,900 22,000 20 1,300 28,000
High
altitude
33 1,675 23,000 33 2,890 37,000 34 2,100 52,000
Ignition
(“Medium” setting in manual test mode)
Factory
setting
47 3,200 32,900 50 4,130 55,000 48 2,800 72,850
High
altitude
62 3,500 43,400 61 4,975 67,500 61 3,500 94,550
High fi re
(adjust if desired to match maximum system load —
High fi re % rate = Max heat load / Boiler output)
(adjusting speed will affect boiler AFUE rating)
Factory
setting
96 4,150 67,200 96 7,550 105,600 96 5,300 148,800
Maximum
setting
100 4,300 70,000 100 7,850 110,000 100 5,500 155,000
Note 1 — The boiler will automatically derate the BTU values listed in
this table by 4% per 1,000 feet above sea level.
In the USA Input rates are derated 4% for each 1000
ft. above sea level, beyond 2000 ft. in accordance with
National Fuel Gas Code, ANSI Z223.1/NFPA 54 – latest
edition, and/or the Natural Gas and Propane Installation
Code, CAN/CSA B149.1.
For elevations above 10,000 feet, please contact
Weil-McLain Technical Support for details.
In Canada, Input rates are derated 10% for altitudes of
2000 ft. to 4500 ft. above sea level. Please use appropriate
Fan Speed Settings for High Altitude provided in this
manual.
In Canada for elevation beyond 4500 feet. please consult
Provincial Authorities having jurisdiction and/or local
codes.