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MUA-PRC001-EN8
Model
Number
Description
D F O A 1 0 9 A N C A 1 A A B 1 2 0 0 0 A
1,2,3 4 5,6,7 8 9 10 11 12 13,14 15 16 17 18 19 20 21
Digits 1,2,3 — Unit Description
DFO = Direct Fired Outdoor Unit
Digit 4 — Development Sequence
A = First Generation
Digits 5,6,7 — Unit Size
109 = Unit Size 109
112 = Unit Size 112
115 = Unit Size 115
118 = Unit Size 118
215 = Unit Size 215
218 = Unit Size 218
220 = Unit Size 220
222 = Unit Size 222
225 = Unit Size 225
230 = Unit Size 230
SSS = Special Unit Size
Digit 8 — Main Power Supply
0 = No Selection
A = 115/60/1
B = 230/60/1
C = 208/60/1
D = 208/60/3
E = 230/60/3
F = 460/60/3
S = Special
Digit 9 — Fuel
N = Natural Gas
P = LP Gas (Propane)
S = Special
Digit 10 — Design Sequence
C = Third Design
Digit 11 — Gas Control Option
A = Series 14 Constant Discharge
Temperature
B = Series 44 Space Temperature Control
S = Special
Digit 12 — Type Gas Train Approvals
1 = Standard
3 = IRI
4= FM
S = Special
Digits 13,14 — Burner Input Rating (MBh)
AA = 275 MBh Input
AB = 550 MBh Input
AC = 825 MBh Input
AD = 990 MBh Input
AE = 1100 MBh Input
AF = 1375 MBh Input
AG = 1650 MBh Input
AH = 1925 MBh Input
AJ = 2200 MBh Input
AK = 2475 MBh Input
AL = 2750 MBh Input
AN = 3025 MBh Input
AP = 3300 MBh Input
AQ = 3575 MBh Input
AR = 3850 MBh Input
AT = 4125 MBh Input
AV = 4400 MBh Input
AW = 4675 MBh Input
AX = 4950 MBh Input
AY = 5225 MBh Input
AZ = 5500 MBh Input
A1 = 5775 MBh Input
A2 = 6050 MBh Input
A3 = 6325 MBh Input
A4 = 6600 MBh Input
A5 = 6875 MBh Input
A6 = 7150 MBh Input
A7 = 7425 MBh Input
A8 = 7700 MBh Input
A9 = 7975 MBh Input
SS = Special
Digit 15 — Blower Motor HP
0 = No Selection
B = ¾ HP Motor
C = 1 HP Motor
D = 1½ HP Motor
E = 2 HP Motor
F = 3 HP Motor
G = 5 HP Motor
H = 7½ HP Motor
J = 10 HP Motor
K = 15 HP Motor
L = 20 HP Motor
M = 25 HP Motor
P = 30 HP Motor
Q = 40 HP Motor
R = 50 HP Motor
T = 60 HP Motor
S = Special
Digit 16 — Motor Speed and Starter
0 = No Selection
1 = Single Speed ODP 1800 RPM
2 = Single Speed TEFC 1800 RPM
3 = Single Speed Energy Efficient ODP
1800 RPM
4 = Single Speed Energy Efficient TEFC
1800 RPM
5 = 2S1W ODP 1800/900 RPM
6 = 2S2W ODP 1800/1200 RPM
S = Special
Digit 17 — Fan Discharge*
Horizontal Arrangement
1 = Arrangement 1, Top
2 = Arrangement 2, Side
3 = Arrangement 3, Bottom
*Select arrangements from page 6.
Vertical Arrangement
4 = Arrangement 4, Side
5 = Arrangement 5, Top
6 = Arrangement 6, Side
*Select arrangements from page 6.
Digit 18 — Inlet Hood and Birdscreen
0 = None
A = Inlet Hood and Birdscreen with
Permanent Filters
B = Inlet Hood and Birdscreen without
Filters
Digit 19 — V-Bank Filter Section
0 = No Selection
A = V-Bank Filter Section with Permanent
Filters
B = V-Bank Filter Section without Filters
Digit 20 — Dampers/Mixing Box
0 = No Selection
A = Motorized RA Damper
B = Motorized 75/25 Damper
C = Mixing Box — Temperature Control
D = Mixing Box — Building Pressure
Control
E = Mixing Box — Manual Control
Digit 21 — Miscellaneous Options
A = Controls Opposite from Standard
B = Motorized Inlet Damper
C = Motorized Outlet Damper
D = Insulation on Basic Frame
E = Insulation on Filter Section
F = Internal Blower/Motor Isolation
G = Extended Grease Lines
H = Inlet On-Off Duct Stat
K = 115V Duplex Service Receptacle with
Power Transformer
L = Circuit Analyzer
M = Painted Basic Unit and Accessories
N = UV Flame Sensor
P = Clogged Filter Switch with Light
Q = Exhaust Interlock
R = Interlocking Relay
T = City of Chicago Controls
V = Omit Disconnect Switch
W= High Gas Pressure Regulator 1-5 PSIG
X = High Gas Pressure Regulator 5-10 PSIG
Y = Adjustable Drive
S = Special
8 = Low Gas Pressure Burner