model nomenclature for system units
indoor duct furnace model nomenclature
1
2
3
4 5 6
PT
UC
V
MBH
1 - Product type (Pt)
I - Indoor HVAC Unit
2 - unit configuration (uc)
F - Furnace
B - Blower Package - Furnace & Blower
C - Cooling Package - Furnace, Blower & Cooling
3 - venting (v)
P - Power
4,5,6 - furnace input rating (mBH) (output on 840 & 960)
75
- 75,000 Btu/Hr Input
100
- 100,000 Btu/Hr Input
125
- 125,000 Btu/Hr Input
150
- 150,000 Btu/Hr Input
175
- 175,000 Btu/Hr Input
200
- 200,000 Btu/Hr Input
225
- 225,000 Btu/Hr Input
250
- 250,000 Btu/Hr Input
300
- 300,000 Btu/Hr Input
7 - Heat exchanger/Burner/drip Pan material (He)
A - Aluminized Steel
S - 409 Stainless Steel Heat Exchanger/Burner
T - 409 Stainless Steel Heat Exchanger/Burner/Drip Pan
8 - development sequence designation (ds)
F - Single Stage
9 - access side (as)
R - Right Hand
10 - air temperature rise (atr)
H - High 60°-100°F
11 - gas type (gt)
N - Natural with ignition controller
P - Propane with ignition controller
12 - gas valve (gv)
1 - Single Stage
2 - Two Stage
3 - Mechanical Modulation
4 - Electronic Modulation
13 - additional safety switches (ss)
4 - No Switches (Standard)
1 - Low Gas Pressure Switch (Premium)
0 - No Switches (Premium)
2 - High Gas Pressure Switch (Premium)
3 - High and Low Gas Pressure
14 - supply voltage (sv)
A - 115/60/1
B - 208/60/1
C - 230/60/1
D - 208/60/3
15 - transformer (tr)
1 - 40 VA
2 - 75 VA
3 - 150 VA
7
8
9
10
HE
DS
AS
ATR
350 - 350,000 Btu/Hr Input
400 - 400,000 Btu/Hr Input
500 - 500,000 Btu/Hr Input
600 - 600,000 Btu/Hr Input
700 - 700,000 Btu/Hr Input
800 - 800,000 Btu/Hr Input
840 - 1,050,000 Btu/Hr Input
960 - 1,200,000 Btu/Hr Input
M - 2-stage or Modulating
L - Left hand
5 - Electronic Modulation Master
6 - Electronic Modulation Slave
7 - Electronic Modulation 0-10 Vdc
External Input
8 - Electronic Modulation 4-20 mA
External Input
Switch (Premium)
E - 230/60/3
F - 460/60/3
G - 575/60/3
4 - 250 VA
0 - None
11
12
13
14
15
GT
GV
SS
SV
TR
16 - Blower size & Bearing type (BB)
A - 9-7 Spider Bearings
B - 9-7 Pillow Block Bearings
C - 9-9 Spider Bearings
D - 9-9 Pillow Block Bearings
E - 12-12 Spider Bearings
F - 12-12 Pillow Block Bearings
17 - motor Horsepower (HP)
A - 1/3 Hp
B - 1/2 Hp
C - 3/4 Hp
D - 1 Hp
E - 1-1/2 Hp
F - 2 Hp
G - 3 Hp
H - 5 Hp
I - 7-1/2 Hp
J - 10 Hp
K - 15 Hp
V - 20 Hp
18 - motor type (mt)
1 - ODP
2 - ODP - High Eff.
3 - ODP, 1800/900 RPM
4 - ODP, 1800/1200 RPM
19 - sheave arrangement (sa)
A - (See Sheave Tables 34.1 to 35.5)
20,21 - air control (ac)
AA - RA Opening
BA - FA Opening
CA - FA & RA Openings
DA - FA Dampers w/ 2 pos motor (No RA)
EA - FA & RA Dampers w/ 2 pos motor
EQ - ASHRAE Cycle I - ("EA" with Warm-up Stat)
FA - FA Damper & RA Opening w/ 2 pos motor
GA - FA & RA Mod motor w/ 0-10 Vdc External Input
GB - FA & RA Mod motor w/ 4-20 mA External Input
GC - FA & RA Mod motor w/ Minimum Position
GD - FA & RA Mod motor w/ Remote Position (On Remote Panel)
GE - FA & RA Mod motor w/ 3 pos. damper (100% RA, Variable, 100% OA)
GF - FA & RA Mod motor w/ A350P Proportional Temp Controller
GG - FA & RA Mod motor w/ Minimum Position & Prop. Temp Controller
GH - FA & RA Mod motor w/ Remote Position & Prop. Temp Controller
GJ - FA & RA Mod motor w/ FA Enthalpy Controller
GK - ASHRAE Cycle II - ("GG" with Warm-up Stat)
GM - ASHRAE Cycle II - ("GH" with Warm-up Stat)
GN - ASHRAE Cycle III - ("GF" with Warm-up Stat)
HP - FA & RA Floating motor w/ Space Pressure Controller
JA - Manual FA & RA Dampers
KA - Manual FA Damper with Return Air Opening
22 - evaporative cooling (ec)
0
- None
23 - cooling coil (cc)
0
- None
1
- Factory Installed Coil
5-565.1
16
17
18
19 20 21
BB
HP
MT
SA
AC
G - 15-15 Spider Bearings
H - 15-15 Pillow Block Bearings
I - 18-18 Spider Bearings under 15 Hp
J - 18-18 Pillow Block Bearings under 15 Hp
K - 18-18 Pillow Block Bearings for 15 Hp & up
L - 20-18 Pillow Block Bearings
L - 1/3 Hp with Motor Starter
M - 1/2 Hp with Motor Starter
N - 3/4 Hp with Motor Starter
P - 1 Hp with Motor Starter
Q - 1-1/2 Hp with Motor Starter
R - 2 Hp Hp with Motor Starter
S - 3 Hp with Motor Starter
T - 5 Hp with Motor Starter
W - 7-1/2 Hp with Motor Starter
X - 10 Hp with Motor Starter
Y - 15 Hp with Motor Starter
Z - 20 Hp with Motor Starter
5 - TE
6 - TE - High Eff.
7 - TE, 1800/900 RPM
8 - TE, 1800/1200 RPM
22
23
EC
CC
55
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