6
GUNE-SVX001A-EN
Model Number Description
Digit 1 — Gas Heating
Equipment
G
=
Gas Heating Equipment
Digit 2 — Product Type
U
=
Tubular Duct Furnace
Digit 3 — Fuel Type
N
=
Natural Gas
P
=
Propane Gas (LP)
Digit 4 — Developmental
Sequence
E
=
Current Developmental
Sequence
Digits 5, 6, 7 — Input Capacity
(MBh)
010 =
100
015 =
150
020 =
200
025 =
250
030 =
300
035 =
350
040 =
400
Digit 8 — Main Power Supply
A
=
115/60/1
B
=
230/60/1
C
=
208/60/3
D
=
230/60/3
E
=
460/60/3
F
=
575/60/3
G
=
208/60/1
Digit 9 — Gas Control Option
H
=
Electronic Modulating w/Room
Sensing
J
=
Electronic Modulating w/Duct
Thermostat
L
=
Electronic Modulation
w/External 4–20 mA Input
M
=
Electronic Modulation
w/External 0–10 Vdc Input
T
=
Single-Stage, Direct Spark
Ignition
V
=
Two-Stage, Direct Spark Ignition
W =
Electronic Modulation w/Duct
Thermostat/Room Override Stat
Digit 10 — Design Sequence
A
=
First Design
Digit 11 — Heat Exchanger
Material
1
=
Standard (Aluminized Steel)
2
=
409 Stainless Steel
Digit 12, 13, 14 — Reserved for
Future Use
0
=
Not Used
Digit 15 — Miscellaneous
0
=
None
B
=
Air Pressure Switch for Above
5,000 Feet
G
=
Horizontal and Vertical Louvers
W =
Stainless Steel Drain Pan
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
G
U
N
E
0
2
0
A
H
A
1
0
0
0
0
B
