54
action for 1 minute, the display returns to normal operation. Changes are effective immediately but not
directly stored until the
{S4}
key is pressed down for 3 seconds then the new values are stored. Listed
below are the varieties of functions the installer can program.
DEFAULT
FUNCTION VALUE
DESCRIPTION
1
|de|
N/A
2
149
o
F
N/A
3
160
o
F
Maximum set point for indirect water heater temperature
(NOTE: Does not apply if used with mechanical control)
Range: 95
o
F
to 185
o
F
4
36
o
F
N/A
5
7
o
F
Change differential in indirect water heater
Range: 1
o
F to 18
o
F
6
0 min.
Changes the indirect circulator post purge time once the sensor is satisfied.
(NOTE: Post purge time should be set no greater than 5 minutes.)
Range: 0 to 10 minutes
7
68
o
F
Warm weather shutoff
Range: 41
o
F to 122
o
F
8
5
o
F
Changes the minimum outside design temperature
Range: -49
o
F to 32
o
F
9
180
o
F
Changes design supply water temperature based on minimum outside design temperature
Range: 77
o
F to 180
o
F
10
68
o
F
Changes maximum outside design temperature for central heating
Range: 32
o
F to 95
o
F
11
95
o
F
Changes design supply water temperature based on maximum outside design temperature
Range: 32
o
F to 185
o
F
12
68
o
F
Sets the lowest temperature on the heater for central heating
Range: 32
o
F to 185
o
F
13
0 min.
Changes central heating circulator post purge time once thermostat is satisfied.
Range: 0 to 10 minutes
14
30 min.
Sets maximum run time for the indirect water heater and minimum run time for central heating.
Range: 0 to 60 minutes
15
0
Bus address (0 = zone master 1 – 8 = cascade slave)
16
0
Allows the installer to connect a 0-10 volt directly from Building Management System.
To activate, change value to 2.
WARNING: Values 1 and 3 are not to be programmed into the board. Range: 0 - 3.
17
0
Allows the user to control the function of the 0-10 volt input
0 = Appliance Temperature
1 – Appliance Power
18
1
Step Modulation – Regulates the burner output in 6 steps in 1 minute intervals. This reduces short
cycling.
1 = On
0 = Off
19
185
o
F
Indirect Heater Set point (flow)
Temperature Default = 95
o
F to 185
o
F
20
3
N/A
21
0
Allows the installer to set the control to display
FOU
error. If outdoor sensor is open or shorted,
FOU
error does not prevent the appliance from running.
0 = No
FOU
displayed.
1 =
FOU
displayed if outdoor sensor is shorted or open.
22
100%
Maximum appliance output percentage. Default = 100%. This parameter can be adjusted to lower
the maximum appliance output if necessary.
Range: 50 – 100%.
23
0
Cascade configuration (Default 0).
Change this to 1 if the appliance is a cascade master.
Summary of Contents for PHR100-55
Page 12: ...12 PART 3 DIMENSIONS AND CLEARANCES Figure 1 LP 325 L ...
Page 59: ...59 Figure 22 ...
Page 60: ...60 Figure 23 ...
Page 62: ...62 ...
Page 63: ...63 ...
Page 64: ...64 MAINTENANCE NOTES ...
