42
HIGH EFFICIENCY GAS-FIRED UNIT HEATER
UNIT NUMBER DESCRIPTION
DIGIT
N
X
X
X
–
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15
+
ITEM
PREFIX
UT
CA
FT FM GT AL GC SV MT MS DL
AS
(Internal Use Only)
1, 2 - Unit Type [UT]
HU - High Efficiency Unit Heater
3, 4, 5 - Capacity [CA]
100 - 100,000 BTU/HR
200 - 200,000 BTU/HR
300 - 300,000 BTU/HR
400 - 400,000 BTU/HR
6 - Furnace Type [FT]
A - Right Side Access
7 - Heat Exchanger (Furnace) Material [FM]
1 - Stainless Steel Tubes with Aluminum and Brass Fins
Note: Stainless Steel Flue Collector is standard.
8 - Gas Type [GT]
N - Natural Gas
P - Propane Gas (LP)
9 - Altitude [AL]
S - 0–11,999 ft.
Note: Installations over 2,000 ft. require gas input deration in the field.
Refer to unit installation instructions.
10 - Direct Spark Gas Control [GC]
1 - Modulating w/Outside Air Reset (Master)
2 - Modulating w/Outside Air Reset (Network)
3 - Modulating w/Indoor Air Reset
4 - Modulating w/2-10 VDC/4-20 mA Input
5 - Modulating w/Room Sensing
6 - Two Stage
11 - Supply Voltage [SV]
1 - 115/1/60 5
- 230/3/60
2 - 208/1/60 6
- 460/3/60
3 - 230/1/60 7
- 575/3/60
4 - 208/3/60
Z - Special
Note: Supply Voltages [SV] 2-7 include field mounted step down transformer.
12 - Motor Type [MT]
1 - Open Drip Proof
13 - Blower Motor Sizes [MS]
0 - Not applicable
14 - Design Level [DL]
A - First design level
15+ - Accessories [AS]
0 - Not applicable
† FIELD INSTALLED (AS-____ )
† All Field Installed Accessories are to be entered as a separate line item using the catalog
number which utilizes “AS” as a prefi x. i.e: G3 becomes AS-G3.
A7 - High Pressure Regulator
A7-1/2-1 - Regulator for PSI range 0.5-10
A7-3/2-1 - Regulator for PSI range 10-20
A7-5/16-1 - Regulator for PSI range 20-35
E9 - Condensate Neutralizer (Inline)
EW - Condensate Neutralizer (Wall Mounted)
G1 - 1-Stage T87K Mercury Free Thermostat w/Subbase Kit
G2 - 1-Stage T87K Mercury Free Thermostat w/TG511A Guard Kit
G3 - 1-Stage T834N Mercury Free Thermostat w/Fan Switch
G5 - 2-Stage TH5220D Mercury Free Thermostat w/Subbase
G6 - Locking Thermostat Cover
G9 - 1-Stage T822K Mercury Free Thermostat
K8 - Condensate Pump
K9 - Condensate Pump Shelf
Y2 - 2" PVC Concentric Vent Kit
Y3 - 3" PVC Concentric Vent Kit
Y4 - 4" PVC Concentric Vent Kit
