Trane GRCA - Page 3

Model
Number Description
(All furnaces)
DIGIT
1 - Gas
Heating
Equipment
G =
G as
DIGIT 2 - Unit
Type
F = Rooftop D uct
Furnace
R = R
oofto p
H
eating
U
ni t
S
= Special
U ni t T y p
e
DIGIT
3 - Furnace
Type
A
= S t a ndard
T e m p
R
ise (
20 -6 0 D eg. F )
LH
B = S tandard
Te m p R ise ( 2
0-
60
Deg .
F )
RH
C = High
Temp Rise (60-90
Deg. F)
LH
D
= High
Tem p R is e
(60-90 De
g.
F ) RH
E = B lank F
urnac e S
l
ee v e
LH
G
= Blank
Furnace
Sleeve RH
S
= Special
Furnace
Type
DIGIT
4
-
Development
Sequence
A
= F irs t G
eneratio n
DIGIT 5,6
-
Input
Capacity
Single Furnace
10 =
100
MBh Input 30 =
300 MBh
Input
15 = 150
MBh Input 35 =
350 MBh
Input
20 = 200
MBh
Input 40 =
400 MBh
Input
25 =
250
MBh x
Double Furnace
50 = 500
MBh Input 70 =
700 MBh
Input
60 = 600
MBh Input
80 =
800
MBh Input
Triple Furnace
12 = 1200
MBh Input
SS
=Special
unit
DIGIT
7 - Venting
Type
G = G ravi t y V e n
ting
P = P ower
Ventin g
S = S pecial
V enting
DIGIT 9
- Gas
Control Option
(Intermittent Pilot Ignition)
A = Single-Stage
B = Two-Stage
C
= Hydraulic
Modulating (60-100)
D = Hydraulic
Modulating
(75-200)
E
= Hydraulic
Modulating W/Bypass and
limit
(60-100)
F = Hydraulic
Modulating W/Bypass
(75-200)
G = Electronic
Modulating W/Room T-Stat
H = Electronic
Modulating W/Duct T-Stat
J = Electronic
Modulating
W/Duct T-Stat
and
Override Room
Thermostat
K=
Electronic Modulating
W/External 4-20
mA Input (Furnace 1)
L = Electronic
Modulating W/External 4-20
mA
Input
M=
Electronic
Modulating W/External 0-10
VDC Input
(Furnace 1)
N
= Electronic
modulating
W/External 0-10
VDC
Input
P =
VAV Control Two-Stage
R=
VAV Control Three-Stage
T =
VAV Control Four-Stage
U =
S-350 2 Stage
Modular
Electronic
Control
System
W =
S-350 3
Stage Modular Electronic
Control System
X =
S-350 4 Stage
Modular Electronic
Control System
Y = S-350 6
Stage Modular Electronic
Control
System
S
=Special Gas
Control
DIGIT
13
- Heat
Exchanger Material
1
= Aluminized
S teel
2
= # 409
St ainless
S
teel ( F
i r s
t
Furn
a
ce
Only)
3 = #409 Stainless
Steel (All
Furnace
Sections)
4 = # 3 21 S
t a
inless
S t e el ( F irst
F
ur n ac e
O nly)
5 = #3 21 St ainless
S teel
( A ll
F ur na
ce
Sections)
6
= # 4 09
S tainless
S
teel
P
ackag
e ( F ir s t
Furnace Only)
7 = #409 S tainless
St
eel
P
acka
ge (
A
ll
F urnace S ections)
8
= #32 1 S tainless
S
teel P acka
g
e( F
irs t
Furnace
Only)
9 = #321
Stainless
Steel P acka g e(
A
ll
F urnace S ec t ions)
S
= Special
Heat Exchanger P ackage
DIGIT
14
- Rooftop
Arrangements
(Des i gnator
A -
L Assumes Furnace
S
ecti
on )
A
= D uct
Furnace
B
= B lower ( S
tandard)
C
= Blower
(Standard) Plenum
D
= B lower
(Standard) E vaporative
C
oole r
E
= Blower
(Standard) E vaporativ e
C ooler/Plenum
G =Blower (High CFM)
J = B lower
( H
igh C
F M
)/Plenum
K = B lower
(
H igh C F M )/ C oolin g
L = B lower
( H
igh C
F
M )/ C o
o
lin
g
/ P le n u m
S =
S
pecial R oofto p
A
rr a ng m ent
DIGIT 8
- Main
Power Supply
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 S = Special
Main
Power
Supply
DIGIT
10
-
Design
Sequence
A =
F irst D esi gn
DIGIT
11
-Design
Sequence
0
= F irst
D
esign
DIGIT
12
-
Fuel
Type
N
=
N atural
Ga
s
P =
LP G as (
P ropane)
L =
N a
t
ural G as
with 1 00% L
ockout
S
=
S pecial
F uel
type
DIGIT 15
= Roo fto p
H
eati
ng Un
i
t
Motor
Selection
0 = N one
(Rooftop duct furnace)
A = 1/2 HP w/contactor
B =
3/4 HP
w/contactor
C = 1
HP w/contactor
D = 1 1/2 HP
w/contactor
E = 2 HP w/contactor
F = 3
HP w/contactor
G =
5 HP
w/contactor
H = 1/2 HP w/magnetic starter
J = 3/4 HP w/magnetic
starter
K = 1 HP
w/magnetic
starter
L = 1 1/2 HP
w/magnetic starter
N =
2
HP w/magnetic starter
P =
3
HP w/magnetic starter
Q = 5
HP
w/magnetic
starter
R = 7
1/2
HP
w/magnetic starter
T = 10 HP
w/magnetic starter
U = 15
HP w/magnetic starter
S = Special
Motor
1a