5-571.4
seQuential number
Varies - 0000 TO 9999
Each unit in a week has a
unique number
sPo number
<blank> if standard
##### if Special Product Order
gas valve suPPlier
01-Robertshaw 09-White Rodgers
05-Honeywell
control suPPlier
01-Robertshaw 09-White Rodgers
05-Honeywell
17-United Technologies
08-Fenwal
serial number PrefiX
<blank> if standard
"S" if Special Product Order
23
moDel iDentification
Weatherproof model nomenclature
1 - Product type (Pt)
H - Outdoor HVAC Unit
2 - unit configuration (uc)
F - Furnace
3 - venting (v)
G - Gravity
P - Power
4,5,6 - furnace input rating (mbH)
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
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 (Ds)
F - Single Stage
M - 2-stage or Modulating
9 - access side (as)
R - Right Hand
L - Left hand
10 - air temperature rise (atr)
H - High 20°-100°F
L - Low 20°-60°
11 - gas type (gt)
N - Natural with continuous retry ignition controller
P - Propane with lockout ignition controller
12 - gas valve (gv)
1 - Single Stage
6 - Electronic Modulation Slave
2 - Two Stage
7 - Electronic Modulation 0-10 Vdc External Input
4 - Electronic Modulation
8 - Electronic Modulation 4-20 mA External Input
5 - Electronic Modulation Master
13 - additional safety switches (ss)
0 - No Additional Switches
2 - High Gas Pressure Switch
1 - Low Gas Pressure Switch
3 - High & Low Gas Pressure Switch
14 - supply voltage (sv)
A - 115/60/1
E - 230/60/3
B - 208/60/1
F - 460/60/3
C - 230/60/1
G - 575/60/3
D - 208/60/3
15 - transformer (tr)
1 - 40 VA
3 - 150 VA
0 - None
2 - 75 VA
4 - 250 VA
1
2
3
4 5 6
7
8
9
10
11
12
13
14
15
PT
UC
V
MBH
HE
DS
AS
ATR
GT
GV
SS
SV
TR
figure 23.1 - serial number Designations
s
09
17
09
36
10
0123 10000
series iDentity number
WeeK
ProDuceD
year
ProDuceD
225 - 225,000 Btu/Hr Input
250 - 250,000 Btu/Hr Input
300 - 300,000 Btu/Hr Input
350 - 350,000 Btu/Hr Input
400 - 400,000 Btu/Hr Input
