Parameter reference table, Control supplement & service guide – Weil-McLain ULTRA 230 User Manual
Page 53

53
Part number 550-100-029/0810
GAS
-
FIRED
WATER
BOILER
SERIES
1 & 2
— Control supplement & Service guide
Parameter reference table
(continued)
Para.
Name
Range
Boiler display
Description
Display position:
1st
2nd
3rd
4th
23
CH
modulation
differential
OFF
(see page 49)
0 to 18
Initial reading:
s
s
TO
s
)F
P
.
2
3
After 2 to 3 seconds:
"LANK
"LANK
Setting
24
DHW
modulation
differential
ON
(see page 49)
-2 to 54
Initial reading:
s
s
TEMPERATURE
P
.
2
4
After 2 to 3 seconds:
"LANK
"LANK
Setting
25
DHW
modulation
differential
OFF
(see page 49)
-6 to 54
Initial reading:
s
s
TO
P
.
2
5
After 2 to 3 seconds:
"LANK
"LANK
Setting
26
DHW
detection
differential
ON
-6 to 54
Initial reading:
s
s
RECOMMENDED
s
TEMPERATURE
P
.
2
6
After 2 to 3 seconds:
"LANK
"LANK
Setting
27
DHW
detection
differential
OFF
-6 to 54
Initial reading:
s
s
RECOMMENDED
s
TEMPERATURE
P
.
2
7
After 2 to 3 seconds:
"LANK
"LANK
Setting
28
Blocking
time
CH
0 to 30
TIMES
SECONDS
Initial reading:
s
CYCLES
P
.
2
8
After 2 to 3 seconds:
"LANK
"LANK
Setting
See Figure 25, page 42 for procedure to access Parameter settings.