Brochure

● Equipped for propane gas
● Single-stage, propane gas valve (eld adjustable for operation to 9,000 ft. elevation
B
)
● Two-stage natural gas or propane gas valve - Sizes 60-400
● 409 or 316 Stainless steel heat exchanger
● 208, 230, 480, and 575 Three phase voltage - Sizes 150-400 (step down transformer shipped separate for
eld installation for 480 and 575 units)
● Adjustable belt drive and motor for up to .5” w.c. external static pressure - Sizes 150-400
● Totally enclosed blower motor - Sizes 150-250
● Belt and blower guards
● Horizontal or Vertical Combustion Air/Vent Kit including concentric adapter
C
● Thermostat
● Thermostat guard with locking cover
● Vertical louvers
● Downturn nozzle (30° or 60° deection, with and without vertical louvers)
● Gas conversion kits
● Manual shutoff valves
● High altitude kits (above 6,000 ft. to 9,000 ft.)
● Primary/secondary controls for zoning up to six units
● Duct ange
● Polytube adapters
● Blower and belt guards
● Hanger kits for 1” pipe
● Stepdown transformer (for 208/115, 230/115 or 460/115 supply voltage) - Sizes 30-125
B
Pressure switch change required for installations above 6,000 ft.
C
Selection of either a horizontal or vertical combustion air/vent kit is required.
OPTIONAL FEATURES -
FACTORY INSTALLED
OPTIONAL FEATURES -
FIELD INSTALLED
D
CSA rating for altitudes to 2000 ft.
E
Size shown is for gas connection to a single stage gas valve, not supply line size.
F
Smaller and/or larger vent and combustion air pipe diameters may be allowed; refer to the Venting Installation Manual for Separated Combustion Units, Form I-UD-V-SC. If vent diameter is different from
vent connection, reducer/enlargers will be eld-required.
G
MOP = 2.25 x largest motor FLA + remaining load. Answer is rounded down to the next size of commercially available circuit breaker or fuse.
Size 30 45 60 75 100 125 150 175 200 225 250 300 350 400
Input Heating
Capacity
BTUH 30,000 45,000 60,000 75,000 105,000 120,000 150,000 175,000 200,000 225,000 250,000 300,000 350,000 400,000
kw/h 8.8 13.2 17.6 22.0 30.8 35.2 43.9 51.2 58.6 65.9 73.2 87.8 102.5 117.1
Thermal Efficiency (%) 82 82 82 82 83 83 83 83 83 83 83 83 83 82
Output Heating
Capacity
D
BTUH 24,600 36,900 49,200 61,500 87,150 99,600 124,500 145,250 166,000 186,750 207,500 249,000 290,500 328,000
kw/h 7.2 10.8 14.4 18.0 25.6 29.2 36.4 42.5 48.6 54.7 60.8 72.9 85.1 96.0
Gas Connection
(in.)
E
Natural 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 3/4 3/4 3/4 3/4 3/4
Propane 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 3/4 3/4 3/4 3/4 3/4
Vent Connection
F
(in.
diameter)
4 4 4 4 4 4 5 5 5 5 5 6 6 6
Combustion Air Inlet
F
(in.
diameter)
4 4 4 4 4 4 6 6 6 6 6 6
6 6
Control Amps (24 volt) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
FLA (with standard HP 115V
motor) 3.7 3.7 7.1 7.1 13.0 13.0
5.9 6.3 10.5 12.7 12.7 17.7 27.3 27.3
Maximum OCP (115V)
G
15 15 15 15 30 30 15 15 25 30 30 40 60 60
Normal Power Consumption
(watts @ full load, medium
speed)
215 215 447 447 537 537 230 415 485 675 675 1260 1635 1635
Minimum Discharge
Air Temperature
Rise
°F 45 45 45 45 45 45 45 45 45 45 45 45 45 50
Maximum Discharge
Air Temperature
Rise
°F 75 75 75 75 75 75 75 75 75 75 75 75 75 80
Maximum Air
Volume
CFM 506 759 1012 1265 1793 2049 2562 2989 3416 3843 4270 5123 5977 6185
M
3
/min 14.3 21.5 28.7 35.8 50.8 58.0 72.5 84.6 96.7 108.8 120.9 145.1 169.2 175.1
Minimum Air Volume
CFM 304 456 607 759 1076 1230 1537 1793 2049 2306 2562 3074 3586 4100
M
3
/min 8.6 12.9 17.2 21.5 30.5 34.8 43.5 50.8 58.0 65.3 72.5 87.0 101.5 116.1
Discharge Air
Opening Area
Ft
2
0.96 0.96 1.25 1.25 2.01 2.01 2.56 2.56 2.56 3.51 3.51 4.79 4.79 4.79
M
2
0.09 0.09 0.12 0.12 0.19 0.19 0.24 0.24 0.24 0.33 0.33 0.45 0.45 0.45
Maximum Output
Velocity
FPM 527 791 810 1012 892 1020 1001 1168 1334 1095 1217 1070 1248 1291
M
3
/min 159 239 239 299 267 305 305 356 407 334 371 326 380 393
Minimum Output
Velocity
FPM 316 475 486 607 535 612 600 700 800 657 730 642 749 856
M
3
/min 96 143 143 179 160 183 183 213 244 200 223 196 228 261
Standard Blower Motor HP 1/6 1/6 1/3 1/3 3/4 3/4 1/4 1/2 1/2 3/4 3/4 1-1/2 2 2
Blower Size inches 9 X 6 9 X 6 9 X 6 9 X 6 10 X 10 10 X 10 12 x 12 12 x 12 12 x 12 15 x 11 15 x 11 15 x 15 15 x 15 15 x 15
Approximate Net
Weight
lbs 72 77 89 94 131 136 255 275 275 320 335 375 410 425
kg 33 35 40 43 59 62 116 125 125 145 152 170 186 193
Approximate Ship
Weight
lbs 90 95 110 115 176 181 315 335 335 400 415 475 510 525
kg 41 43 50 52 80 82 143 152 152 181 188 215 231 238
TECHNICAL DATA
Model UDBS
For installations where dirt, dust, and other air borne contamination is present in the indoor environment, it is
recommended to use separated combustion units (Model UDBS). These models use air from outside the space
for combustion. This will help reduce the build up of contaminates on the burner which would affect the combus-
tion process. Refer to the installation manuals for recommended frequency of maintenance and cleaning.
Form RZ-C-UH (Version H) Page 12
Page Number _______ of ______