Installation Guide

WHL-648 Rev. 000 Rel. 002 Date 1.3.18
50
Display Default Detail Description
17:cL 86F
Minimum Supply Temperature
Sets the minimum design supply temperature based on the maximum outdoor
design temperature. Minimum supply temperature must be set 9
o
F above the
maximum supply temperature.
Range: 86
o
F (Maximum Supply Temperature - 9
o
F)
18:dH 140F
Maximum DHW Setpoint
Temperature
Sets Maximum DHW Setpoint Temperature
Range: 120 - 140
o
F
19:cb 100
Heating capacity
Sets heating combustion rate
Range: 50 - 100%
NOTE: 199 Models shall be factory set at 70%. The default number will be 70. This
percentage can be increased with an additional pump.
20:db 100
DHW capacity
Set DHW combustion rate
Range: 50 - 100%
21:PP 40
Internal CH Pump Post Run
Timer, T/T Calling for Heat
When appliance CH setpoint is satised, but T/T is calling for heat, the burner will
shut OFF and the CH pump will continue to run for this set amount of time
Range: 1 - 60 minutes
22:Po 5
Internal CH Pump Overrun
Timer (On)
This function runs the Internal CH Pump after the Internal CH Pump Post Run Timer
has completed. This will cycle the Internal CH Pump again based on the default
programmed O and On cycles and repeats until the central heating call is satised.
Range: 1 - 60 minutes
23:PF 0
Internal CH Pump Overrun
Timer (O)
24:SF 150F
Internal DHW Storage Tank
Setpoint
Sets the Internal DHW Storage Tank Setpoint
Range: 140 - 167
o
F
25:So 20F
Internal DHW Storage Tank
Dierential
Sets the Internal DHW Storage Tank Dierential
Range: 140 - 167
o
F
26:dt 2
Delay time when switching
from DHW Mode to CH Mode
Range: 0 - 2 Minutes
27:PE 1
Internal CH Pump Post-Purge
Time, T/T Satised
Allows the user to set the appliance pump post purge time once the appliance CH
setpoint and thermostat are satised.
Range: 1-5 minutes
28:HA 0-2
High Elevation Mode
This appliance 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 Appliance Operation at Altitude:
0-2 for installation locations from sea level to 1999 feet
2-5 for locations from 2000 to 4999 feet
5-8 for locations from 5000 to 7999 feet,
8-10 for locations from 8000 to 10000 feet
Default: 0 – 2
NOTE: Use a calibrated combustion analyzer to ensure CO and CO2 are within the
ranges shown in this manual. Adjust the oset 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.
29:AP
AP:cP
5
Internal CH Pump and Internal
DHW Storage Pump Test Mode
This function sets the time to run both the Internal CH and Internal DHW Storage
pumps to purge air from the system. Range: 1 – 30 minutes
cP:oFF
or
cP:on
OFF
Internal CH Pump and Internal
DHW Storage Pump Test Mode
Turn this function on to activate Internal CH and Internal DHW Storage pump
testing. Only works in Installation Mode. Turns o during normal operation.
Table 28 - Installer Mode Descriptions
Turn the dial counterclockwise and clockwise to scroll through the displayed parameters. To view parameter details, press the
button at the appropriate screen. Turn the dial counterclockwise and clockwise to change the selected parameter. To save the setting
press the button.
To leave Installer Mode, press the button again. The display will return to power o mode.
J. Outdoor Temperature Mode (Optional)
NOTE: If the system requires a xed operating temperature, the outdoor sensor is not required and should not be installed.
There is no connection required if an outdoor sensor is not used in the installation.
1. Use a minimum 22 AWG wire for runs of 100 feet or less and minimum 18 AWG wire for runs of up to 150 feet.
2. Mount the outdoor sensor on an exterior surface of the building, preferably on the north side in an area that will not be aected by direct
sunlight and will be exposed to varying weather conditions.
NOTE: For correct mounting procedures, follow instructions provided with the sensor.
NOTE: If sensor wires are located in an area with sources of potential electromagnetic interference (EMI), the sensor wires should be shielded,
or the wires routed in a grounded metal conduit. If using shielded cable, the shielding should be connected to the common ground of the
appliance.
NOTE: Outdoor Temperature Mode Icon on the display will ash if an Outdoor Sensor or 0-10 Volt is not connected to the appliance.