38
The minimum off time can be set from 0 to 2550
seconds in 10 second increments. It has a default
setting of 180 seconds.
Warm Weather Shut Down: The
P
URE
F
IRE
control will
prevent the boiler from operating if the outdoor
temperature is above the temperature chosen by the
installer. This helps to prevent wasting fuel if windows
are open and the indoor temperature drops below the
thermostat value. This function can be activated in
either setpoint or outdoor reset CH modes as long as
the outdoor sensor is attached. This only affects CH
demands. The boiler will continue to operate for
DHW loads regardless of outdoor temperatures.
E. DOMESTIC HOT WATER (DHW)
1.
DHW Modes:
Table 8.2 provides an overview of the domestic hot
water modes. The following are detailed descriptions
of the operation of these modes:
Mode 0 – No DHW: This is the default mode for the
control. When this mode is selected, the control will
not respond to either a thermistor signal or a contact
closure at the DHW terminals (#5 & #6). There is
also no output to DHW Pump Terminals.
Mode 1 – DHW Store with Sensor: In this mode, the
P
URE
F
IRE
control accepts a temperature input from an
optional domestic tank sensor (54157). This sensor
provides the DHW water temperature value to the
control. The control targets the user selected DHW
setpoint and modulates the boiler firing rate
accordingly.
BOILER CONTROL: INTERNAL WIRING & OPERATION
Table 8.7: Outdoor Design Temperature (ODT) – U.S. Cities
Table 8.8: Typical Supply Temperature Settings
System Type
Boiler Supply Temperature
Design
Mild Weather
Hydro Air Unit
190°F
88°C
140°F
60°C
Finned Tube Baseboard
180°F
82°C
140°F
60°C
Cast Iron Radiators
160°F
71°C
120°F
49°C
Cast Iron Baseboard
150°F
66°C
100°F
38°C
Low Mass Radiant
140°F
60°C
70°F
21°C
High Mass Radiant
120°F
49°C
70°F
21°C
DANGER
Water temperatures over 125°F can instantly cause
severe burns or death from scalding. Children, elderly
and disabled individuals are at the highest risk of
scalding. See instruction manual for the indirect tank
before setting the water heater temperature. Instruct
users to feel the water temperature before bathing or
showering. Anti-scald valves are recommended.
Be sure to use only the tank sensor indicated. Other
sensors will not provide accurate tank temperatures
and may cause severe personal injury due to scalding.
WARNING
City
State
ODT
City
State
ODT
City
State
ODT
Mobile
AL
29°F
-2°C
Springfield
IL
2°F
-17°C
Albuquerque
NM
16°F
-9°C
Anchorage
AK
-18°F
-28°C
Indianapolis
IN
2°F
-17°C
New York City
NY
15°F
-9°C
Juneau
AK
1°F
-17°C
Des Moines
IA
-5°F
-21°C
Rochester
NY
5°F
-15°C
Flagstaff
AZ
4°F
-16°C
Wichita
KS
7°F
-14°C
Greensboro
NC
18°F
-8°C
Tucson
AZ
32°F
0°C
Bowling Green
KY
10°F
-12°C
Fargo
ND
-18°F
-28°C
Little Rock
AR
20°F
-7°C
New Orleans
LA
33°F
1°C
Columbus
OH
5°F
-15°C
Fayetteville
AR
12°F
-11°C
Bangor
ME
-6°F
-21°C
Tulsa
OK
13°F
-11°C
Sacramento
CA
32°F
0°C
Portland
ME
-1°F
-18°C
Portland
OR
24°F
-4°C
San Diego
CA
44°F
7°C
Baltimore
MD
13°F
-11°C
Philadelphia
PA
14°F
-10°C
San Francisco
CA
38°F
3°C
Boston
MA
9°F
-13°C
Pittsburgh
PA
5°F
-15°C
Boulder
CO
8°F
-13°C
Springfield
MA
0°F
-18°C
Charleston
SC
28°F
-2°C
Denver
CO
1°F
-17°C
Detroit
MI
6°F
-14°C
Sioux Falls
SD
-11°F
-24°C
Hartford
CT
7°F
-14°C
Marquette
MI
-8°F
-22°C
Dallas
TX
22°F
-6°C
Waterbury
CT
2°F
-17°C
Minneapolis
MN
-12°F
-24°C
Salt Lake City
UT
8°F
-13°C
Wilmington
DE
14°F
-10°C
Jackson
MS
25°F
-4°C
Burlington
VT
-7°F
-22°C
Orlando
FL
38°F
3°C
St. Louis
MO
6°F
-14°C
Richmond
VA
17°F
-8°C
Tallahassee
FL
30°F
-1°C
Billings
MT
-10°F
-23°C
Seattle
WA
27°F
-3°C
Atlanta
GA
22°F
-6°C
Omaha
NE
-4°F
-20°C
Spokane
WA
2°F
-17°C
Boise
ID
10°F
-12°C
Carson City
NV
9°F
-13°C
Morgantown
WV
8°F
-13°C
Idaho Falls
ID
-6°F
-21°C
Manchester
NH
-3°F
-19°C
Green Bay
WI
-9°F
-23°C
Chicago
IL
-4°F
-20°C
Atlantic City
NJ
13°F
-11°C
Cheyene
WY
-1°F
-18°C
Содержание PF-110
Страница 18: ...16 WATER PIPING AND CONTROLS Figure 4 6 Two Boilers Primary Secondary with Four Zones Zone Circulator ...
Страница 19: ...17 WATER PIPING AND CONTROLS Figure 4 7 Three Boilers Primary Secondary with Five Zones Zone Circulator ...
Страница 20: ...18 WATER PIPING AND CONTROLS Figure 4 8 Three Boilers Primary Secondary with Four Zones Zone Valves ...
Страница 30: ...28 ELECTRICAL CONNECTIONS Figure 7 4 Internal Wiring Schematic ...
Страница 56: ...54 REPAIR PARTS ...
Страница 58: ...56 REPAIR PARTS ...
Страница 60: ...58 APPENDIX A STATUS SCREENS APPENDIX A STATUS SCREENS ...
Страница 61: ...59 APPENDIX A STATUS SCREENS ...
Страница 62: ...60 APPENDIX A STATUS SCREENS ...
Страница 63: ...61 APPENDIX B USER MENU APPENDIX B USER MENU ...
Страница 64: ...62 APPENDIX C INSTALLER MENU APPENDIX C INSTALLER MENU ...
Страница 65: ...63 APPENDIX C INSTALLER MENU ...
Страница 66: ...64 APPENDIX C INSTALLER MENU ...
Страница 68: ...66 NOTES ...
Страница 69: ...67 NOTES ...