Mod Con 300 - Page 58

57
GAS-FIRED BOILER Boiler Manual
Fig. 11-3
PART 11: START-UP PROCEDURES FOR THE INSTALLER (CONTINUED)
50
32
41
167
158
149
131
122
113
104
77
59
68
86
95
212
203
194
185
176
201˚
SUPPLY OUTLET TEMPERATURE (F)
-24
-59 -41
OUTSIDE TEMPERATURE (F)
-9
9
27
63
45
81
99
FUNCTION 9
FUNCTION 11
FUNCTION 8 FUNCTION 10
0
68˚5˚
DEFAULT RESET CURVE
CENTRAL HEATING CURVE
Factory Default
50
OUTSIDE TEMPERATURE (F)
-59
32
41
-41
-24
27
9
-9
0
81
45
63
99
Plot your Curve
CENTRAL HEATING CURVE
SUPPLY OUTLET TEMPERATURE (F)
167
104
77
59
68
86
95
131
113
122
149
158
194
176
185
203
212
Fig. 11-1 Fig. 11-2
CONTROL PROGRAM REFERENCE CHART
Function Default Setting Programmed Setting Function Default Setting Programmed Setting
1 de No change allowed 14 30 minutes
2 149°F No change allowed 15 0
3 180°F 16 0
4 36°F No change allowed 17 0
5 7°F 18 1
6 0 minutes 19 180°F
7 68°F 20 3
8 5°F 21 0
9 180°F 22 100%
10 68°F 23 0
11 95°F 24 24 hrs.
12 68°F 25 0 No change allowed
13 0 minutes 26 – – –
NOTICE
It is important to note that the user can adjust the heat curve down by adjusting the central heating
temperature to a lower setting.
1. Minimum outside design temperature:
Function 8
2. Design Supply water temperature at the
minimum design outside temperature:
Function 9
3. Maximum outside design temperature:
Function 10
4. Design Supply water temperature at the
maximum outside temperature: Function 11