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Parameter Settings for MCBA Controls
Parameter Settings for MCBA Controls
No. Description Lower Limit Upper Limit Installed
MCBA
Parameter
Settings
End User Settings
NG LPG NG LPG NG LPG NG LPG NG LPG
1 Setvalue for DHW
Water Storage Tank: 68 F Water Storage Tank: 158 F 140 140 140 140 140 140 140 140 140 140
2 DHW system
0 = off 0000000000
1 = on
2 = off+ pump continuous
3 = on+ pump continuous
3 CH system
0 = off 1111111111
1 = on
2 = off+ pump continuous
3 = on+ pump continuous
4 Setpoint or Maximum Setpoint (OAR)
68 F 182 180 180 180 180 180 180 180 180 180 180
Service Settings
5 Minimum Setpoint, Outdoor Air Reset (OAR)
60 F 140 F 80 80 80 80 80 80 80 80 80 80
6 Minimum outdoor temp (OAR)
-4 F 50 F 20202020202020202020
7 Maximum outdoor temp (OAR)
59 F 77 F 70707070707070707070
8 Frost protection, at OA Temp
-22 F 50 F 32 32 32 32 32 32 32 32 32 32
9 Correction, Outdoor Air Senso
r
-9 F 9 F 0000000000
10 CH shutdown setpoint temp (OAR)
32 = off
34 F 140 F 32 32 32 32 32 32 32 32 32 32
11 Booster time
0 = no booste
r
0000000000
1 minute 30 minutes
12 Outdoor Air Offset
0 F 144 F 0 0 00000000
13 Maximum fanspeed CH (hundreds
)
10 70 60 57 56 54 49 48 56 54 60 58
14 Maximum fanspeed CH (units)
00 99 00 00 00 00 00 50 00 00 00 00
15 Maximum fanspeed DHW (hundreds)
10 70 60 57 56 54 49 48 56 54 60 58
16 Maximum fanspeed DHW (units)
00 99 00 00 00 00 00 50 00 00 00 00
17 Minimum fanspeed (hundreds)
5 70 16201220111313131313
18 Minimum fanspeed (units)
00 99 00 00 00 00 50 00 00 00 00 00
19 Ignition fanspeed (hundreds)
5 70 35352525222222222222
20 Postpumptime CH
0 = 10 Seconds 1 1 11111111
1 Minute 99 Minutes
21 Postpumptime DHW
0 Seconds 30 x 10.2 seconds 3 3 33333333
22 CH modulation hysteresis On
0 F 36 F 10101010101010101010
23 CH modulation hysteresis Off
0 F 18 F 10101010101010101010
24 DHW modulation hysteresis On
-9 F 54 F 10101010101010101010
25 DHW modulation hysteresis Off
-9 F 54 F 10101010101010101010
26 DHW detection hysteresis On
-9 F 54 F 5555555555
MACH
1050 PK
Factory
Setting
for MCBA
MACH
300 PK
Factory
Setting
for MCBA
MACH
450 PK
Factory
Setting
for MCBA
MACH
750 PK
Factory
Setting
for MCBA
MACH
900 PK
Factory
Setting
for MCBA