56
WHL-032 REV. 6.2.16
26:FP
ON
System Freeze Protection Mode
(Activates Based on Internal
Supply Water Temperature)
Freeze Protection Operation
Range
Stage 1
– If control detects water temperature of 46
o
F
(8
o
C) and below, it turns the DHW indirect and CH pumps
On for 600s and Off for 30s. This cycle repeats until the
control detects water temperature of 50
o
F (10
o
C) and
above.
ON or OFF
(Default: ON)
NOTE: If using
boiler for Snow
Melt applications,
turn Freeze
Protection OFF.
Stage 2
–
If control detects water temperature of 41
o
F
(5
o
C) and below, it turns the burner on to meet a target
temperature of 104
o
F (40
o
C). The burner and DHW indirect
and CH pumps will run continuously during this stage until
the control detects water temperature of 104
o
F (40
o
C) and
above.
Stage 3 -
If control detects water temperature of 34
o
F (1
o
C)
and below, Er: 85 will appear on the display. The control
turns the burner on to meet a target temperature of 104
o
F
(40
o
C). The burner and DHW indirect and CH pumps will
run continuously during this stage until the control detects
water temperature of 104
o
F (40
o
C) and above.
27:cn
0
Cascade Address
Cascade Number
Range: 0 (Master), 1 (follower
1), …., 19 (follower 19) Default: 0
NOTE:
“28:cP” needs to be set on the Master boiler with total number of
cascaded units before s
etting “27: cn”
NOTE:
The Master boiler must always be addressed 0.
28:cP
1
Cascade Parameter
Total number of cascaded units (Set on cascade Master boiler ONLY.)
NOTE:
28:cP will not appear on Follower boilers once it has been selected on
the Master.
Range: 1
– 20 (Default: 1)
29:Eh
OFF
Common Vent
Common Vent
Range: ON / OFF
30:Cr
Cr:at
Auto
Automatic rotation (default)
The first unit to operate when there is a T/T call is the unit that ran the least
amount of time during the prior heat calls (burner ON time).
Cr:Ct
48
Cascade Rotation time
Cascade Rotation time
Range: 0-240 Hours
31:CT
180F
Cascade System temperature
Cascade System temperature:
Range: 95F
– 180F
32:Cd
10 F
Cascade System Temperature
Differential (burner ON)
Cascade System Temperature Differential (burner ON)
Range: 5-30 F
33:HA
HA 0
High Elevation Mode
This boiler may be installed at elevations up to 10,000 feet and
operate on either Natural or LP. The appliance will de-rate by 4% for
each 1000 feet above sea level. Select the appropriate installation
location as described below.
Selects Installation Location for Proper Boiler Operation at Elevation:
0-2 for installation locations from sea level to 2000 feet
2-5 for locations from 2000 to 5000 feet
5-8 for locations from 5000 to 8000 feet,
8-10 for locations from 8000 to 10000 feet
Default: 0
– 2
NOTE:
Use a combustion analyzer to ensure CO and CO2 are within
the ranges shown in this manual. Adjust the offset screw in the
clockwise (positive) or counterclockwise (negative) directions
(approximately 1/8 turn) if the measured CO2 value on LOW FIRE is
out of range.
34:AP
AP:cP
5
CH System Pump and DHW
Indirect Pump Test Mode
This function sets the time to run Boiler pump, CH System pump or DHW
Indirect pump to purge air from the system. Range: 1
– 30 minutes
cP1:Off
or
cP1:On
OFF
Boiler and CH System Pumps Test
Mode
Turn this function on to activate Boiler pump and CH System pump.
Only works in installation mode. Turns off when in normal mode.
cP2:Off
or
cP2:On
OFF
DHW Indirect Pump Test Mode
Turn this function on to activate DHW Indirect pump.
Only works in installation mode. Turns off when in normal mode.
35:SS
SS:Sd
OFF
OFF
Allows the user to set the date of next service reminder
XX / XX / XXXX (MONTH / DAY / YEAR)
A wrench will be displayed on the display panel when the service is due.
YEAR
MON
Allows the user to set the year of
next service reminder
DATE
SS:br
00
Allows the user to set the service
reminder based on BURNER RUN
HOURS
Allows the user to set the service reminder based on BURNER RUN HOURS
A clock will be displayed on the display panel when the service is due.
Range: 00 indexing to 9,999 hours
NOTE:
Two digits will appear initially. As you scroll to the right more digits will
appear.
Содержание WBRU 100W Series
Страница 47: ...47 WHL 032 REV 6 2 16 Figure 38 Electrical Wiring Diagram ...
Страница 48: ...48 WHL 032 REV 6 2 16 Figure 39 Ladder Diagram ...
Страница 87: ...87 WHL 032 REV 6 2 16 ...
Страница 88: ...88 WHL 032 REV 6 2 16 ...
Страница 89: ...89 WHL 032 REV 6 2 16 MAINTENANCE NOTES ...