54
MUA-SVX005B-EN
Digit 18 — Air Inlet Configuration
0 = None (Indoor Duct Furnace)
1 = Outside Air (OA) Horizontal Inlet
2 = Outside Air (OA) w/Air Hood
(a)
3 = Return Air (RA) Bottom Inlet
4 = Outside Air and Return Air (OA/RA)
5 = Outside and Return Air w/Air Hood
(a)
S = Special Air Inlet Configuration
Digit 19 — Air Control & Damper
Arrangement
0 = None
A = Outside Air 2 Position Motor / Spring
Return
B = Return Air 2 Position Motor / Spring
Return
C = OA/RA 2 Position / Spring Return
E = OA/RA Mod. Motor w/Mixed Air Control /
Min. Pot. / SR
H = OA/RA Mod. Motor w/Mixed Air Control /
SR
K = OA/RA Mod. Motor w/Min. Pot. / SR
M = OA/RA Mod. Motor w/Dry Bulb / Mixed
Air Control / Min. Pot. /SR
N = OA/RA Mod. Motor w/Enthalpy Controlled
Economizer / SR
P = OA/RA Mod. Motor w/Pressure Control
(Space Pressure)
Q = OA/RA Mod. Motor w/ Carbon Dioxide
(CO
2
) R/A Monitor
R = OA/RA Mod. Motor w/S-350-P
Proportional Mixed Air Control / SR
U = OA/RA Mtr. w/External 0-10 VDC and 4-
20 mA Analog Input/SR (External Input)
W = ASHRAE Cycle I (OA/RA 2 Pos. w/Warm-
up Stat/SR)
X = ASHRAE Cycle II (OA/RA Mod. w/Warm-
up Stat / Mixed Air / Min. Pot. / SR)
Y = ASHRAE Cycle III (OA/RA Mod. w/Warm-
up Stat / Mixed Air / SR)
Z = Manual Dampers
S = Special Air Control and Damper
Arrangement
Digit 20
0 = Non-California Shipment
1 = California Shipment
Digit 21 — Miscellaneous Options
A = Orifices for Elevation Above 2000 Feet
(Specify Elevation)
B = 12” Evaporative Media (Celdek)
C = Moisture Eliminator
D = Horizontal Return
E = Air Flow Proving Switch
F = Freezestat w/Time Delay
G = Fan Time Delay (Indoor Duct Furnace)
H = Return Firestat
J = Supply Air Firestat
K = Manual Blower Switch
L = 409 Stainless Steel Furnace Drip Pan
M = Input Derate
N = Double Wall Construction
P = Low Leak Dampers
Q = Clogged Filter Switch
R = High/Low Gas Pressure Limit Switches
T = Status Indicator Lamps (Elec Cabinet)
V = Manual Reset High Limit Switch
W = 8" Evaporative Media (Glasdek)
X = 12" Evaporative Media (Glasdek)
Y = Ambient Lockout
Z = Freezestat for Evaporative Cooler
0 = No Filters
1 = 1” Washable (Standard) Filters
2 = 2" Washable Filters
3 = 2" Throwaway Filters
4 = 1" 30% Pleated Filters
5 = 2" 30% Pleated Filters
Digit 22 — VFD Accessories
1 = Field Installed VFD
2 = Factory Installed VFD
3 = VFD Remote Keypad (Field Installed)
4 = CO
2
Sensor, 100% Outside Air
5 = CO
2
Sensor, Mixed Air
6 = Pressure Sensor
7 = 2-Speed VFD Relays
8 = 3-Speed VFD Relays
9 = VFD Enclosure (Only with Factory
Installed VFD)
(a) Hood shipped separately
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