Laars MFTHW199 - Page 63

Mascot FT, Heating Only, Boiler
Page 61
5.7InstallerMode(continued)
Index
Numbers
Parameter Description
7: cL
Minimum Supply
temperature
Sets the design supply water temperature based on the
maximum outdoor design temperature. Minimum supply
temperature must be set at least 9°F below the maximum
supply temperature. Range: 40°F to (Maximum Supply
Temperature - 9°F) , Default 86 °F
8: OF
Warm Weather
Shutdown
This warm weather temperature setting will shut down CH
Mode Range : 50 °F- 110°F, Default 68 °F
9: bt
Boost Function
This function boosts CH temperature to the maximum if
set point is not reached within the set period of time.
Range: 0 - 120 min, Default 0
10: bd
Boost Degree
The boiler will add this temperature to the boiler target set
point based on outdoor reset curve. Range: 5-15°F
Default: 10°F
11: bI
Boost Interval
The boiler will index the temperature based on time
interval set on 11 bI. Range: 0-120 MIN
Default: 20 MIN
12: FH
Maximum Fan speed
Adjusts Maximum Fan Speed
Range: -30 to +30,Default 00
13: FL
Minimum Fan speed
Adjusts Minimum Fan Speed
Range: -30 to +30,Default 00
14: dr
Initialized burner
operation time
Select ON to Initialize burner operation time
Range: NO or YES,Default NO
15:dI
Initialized ignition cycle
Select ON to Initialize ignition cycles
Range: NO or YES,Default NO
16:Ft
CH Anti-Cycling time
This function delays burner operation during CH mode
Range: 0 - 20 min, Default 1
17: bo
Set differential
temperature to turn
burner “ON”
When set, the appliance will operate to heat CH water
when water temperature falls below a differential setting.
Example: If set point is 180°F and differential is 27°F, the
appliance will turn on when CH water temperature falls
below 153°F. Range: 5°F - 30°F, Default 30°F
18: cb
Heating capacity
Set Heating combustion rate Range: 50 - 100%,
Default 100
19: db
DHW capacity
Set DHW combustion rate
Range: 50 - 100% , Default 100
20:PE
Heating Pump Post-
Purge Time,
T/T Satised
Allows the user to set the appliance pump post purge time
once the thermostat is satised. Range: 1-5 minutes ,
Default 1
21: dH
Indirect Storage Tank
Temperature Set Point
Sets Maximum Indirect storage tank Temperature
Range:95 - 180°F , Default 120 °F
22: dd
Indirect Storage Tank
Differential Set Point
DHW Differential Set Point
Range: 5°F-30°F, Default 7 °F
23: Pr
DHW Pump Post Run
Time
DHW Pump Post Run Time
Range: 0-10 Min , Default 1 Min
24: dP
DHW Priority Timer
DHW Priority Timer
Range: 0 – 60 Min , Default 30 Min
25:St
Boiler Supply Indirect
Storage Tank
Temperature
Boiler Supply Indirect Tank Temperature
Range: 120 °F– 180 °F , Default 180 °F
26:FP
System Freeze
Protection Mode
System Freeze Protection Mode. This mode should be
turned OFF for snow melt application. NOTE: This mode
should be ON during normal operation. Range: ON/OFF