Installation manual

APPENDIX
TECHNICAL DATA
Model UEAS 130 180 260 310
Input Heating Capacity
BTUH 131,000 175,000 260,000 305,000
kw 38.4 51.2 76.1 89.3
Thermal Efciency (%) 93 91 92 91
Output Heating Capacity
A
BTUH 121,830 159,250 239,200 277,550
kw 35.7 46.6 70.0 81.3
Gas Connection (inches)
B
Natural 1/2 1/2 3/4 3/4
Propane 1/2 1/2 3/4 3/4
Vent Connection Diameter (inches) 4 4 4 4
Combustion Air Inlet Diameter (inches) 6 6 6 6
Control Amps (24 volt) 1.0 1.0 1.0 1.0
Full Load Amps (115 volt) 6.3 6.3 10.0 10.0
Maximum Over Current Protection
C D
Standard 115V 15 15 20 20
Normal Power Consumption (watts) 657 657 1020 1020
Discharge Air Temperature Rise (°F) 50 60 50 60
Air Volume
CFM 2256 2458 4430 4283
M
3
/Minute 63.9 69.6 125.4 121.3
Discharge Air Opening Area
ft
2
2.6 2.6 4.8 4.8
M
2
0.2 0.2 0.5 0.5
Outlet Velocity
FPM 883 962 924 894
M/Minute 269 293 282 272
Fan Motor HP
D
Standard Open 1/4 1/4 1/2 1/2
Optional Enclosed 1/4 1/4 1/2 1/2
Fan Motor RPM 1050 1050 1050 1050
Fan Diameter (inches) 18 18 24 24
Approximate Condensate per Hour
Gallons 1 1 2 2
Liters 4 4 8 8
A
CSA ratings for altitudes to 2000 ft.
B
Size shown is for gas connection to a single-stage gas valve, not supply line size.
C
MOCP = 2.25 x (largest motor FLA) + smallest motor FLA. Answer is rounded to the nearest available standard circuit
breaker size.
D
Except where indicated, information in this table is based on a heater equipped with a standard 115 volt open fan
motor.
Operating Principle showing
Combustion Airow and
Supply Airow
This unit heater is a high efciency appliance designed to extract part of the latent heat from the products of com-
bustion. This process forms condensation which is collected and directed to a drainage point inside the unit. The
heater is equipped with a 1/2” (12.7mm) PVC pipe for connecting to a condensate drain. The water condensed from
the products of combustion will be acidic. The level of concentration is dependent upon the environment where the
appliance is installed and may be as high as 6PH. DO NOT USE COPPER OR COPPER BASED ALLOYS FOR
CONDENSATE DRAINS.
Room Supply
Air Intake
Warm
Air
Discharge
Flue Gas Outlet
Cooler ue gas tem-
perature requires a
condensate drain in
the vent.
Condensate
drain connection from
the secondary heat exchanger
Outside
Combustion Air
to the Burner
Form I-UEAS, Page 46