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GAS-FIRED, SINGLE STAGE, ECONOMY INFRA-RED HEATERS
Streamlined for economy and designed without sacrificing performance, the DES3 Series represents quality at an economical price. Utilizing a direct spark ignition system and hot-rolled steel emitter tubes, this series is the best in this class of equipment.
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| PRODUCT FEATURES |
SPECIFIC FEATURES |
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- Tool-free access to controls.
- Serviceability while unit is operating.
- Separated air and gas burner chamber.
- Symmetrical placement of ignition tube.
- Hinged control compartment provides ease in servicing.
- 3-piece independent compartment cover.
- ABS plastic air intake collar for connection to 4” PVC/DWV pipe.
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| PRODUCT FEATURES COMPARISON CHART |
HL3 |
DX3 |
XTS3 |
DET3 |
DES3 |
| Highly Polished Aluminum Reflectors |
x
|
x |
x |
x
|
X
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| Coated Titanium or Aluminized Combustion Chamber |
x |
x |
x |
x
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X
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| Coated Aluminized Radiant Tubes |
x |
x |
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| Hot Surface Ignition |
x |
x |
x |
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| Stainless Steel Flexible Gas Connector |
x |
x |
x |
x
|
X
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| Ball Valve (1/2" Brass) with Pressure Tap Included |
x |
x |
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| Two-Stage Technology |
x |
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x
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| Interlocking Swaged Tubes |
x |
x |
x |
x
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X
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| Stainless Steel Models Available |
x |
x |
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| Reflector End Caps Included |
x |
x |
x |
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| Optional 'U' or 'L' Configurations Available |
x |
x |
x |
x
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X
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| PRODUCT SPECIFICATIONS |
ELECTRICAL
• 120v, 60Hz, 3-wire
• 1.7A starting, 1.1A running
CONTROLS
• Potted circuitry
• 24V thermostat Control
• ABS Plastic Cover
TUBE CONSTRUCTION
• As shown at left
• 4"x10' 16 ga. construction
• Labor saving, interlocking swaged tube design
REFLECTORS
• Highly polished aluminum
• 0°-45° rotatable angle
IGNITION / SENSE
• Direct spark ignition
• Flame rod sense
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VENTING
• 4" single vent
• 6" common vent (with thermostat)
GAS CONNECTION
• 1/2" NPT flexible connector
GAS PRESSURES
• MAN. -3.5" NAT or 10.0" LP
• MIN. -5.0" NAT or 11.0 LP
• MAX. -14.0" NAT or 14.0" LP
COMBUSTION AIR
• Equipped for ducted air intake from roof or sidewall
KIT CONTENTS
• All hangers & couplers
• Turbulator baffle(s)
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| BTU Range: |
50-200 MBH |
| Lengths: |
20-60 Ft. |
| Gas Type: |
Natural or Propane |
| Combustion Chamber: |
Coated Aluminized or Titanium |
| Radiant Tubes: |
Hot-Rolled Steel |
| Certification: |
CSA, IAS
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| Limited Warranty: |
1-2-3 (Components-Tubes-Burner) |
| OPTIONAL EQUIPMENT |
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| “U” or “L” Configurations: |
Available (RUP, REP) |
| Stainless Steel Upgrades: |
Available (SSRAO, SSC, SSB) |
| 24V Controls: |
Requires optional R8385B Relay
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| Indicator Lights: |
Available (IND-LT)
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| Protective Guards: |
Available (PG) |
| Side Shield Extensions: |
Available (SSE) |
| Outdoor Approval: |
Not Available
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AVAILABLE DES3 MODELS & CLEARANCES
Model #
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Gas* |
MBH
High/Low
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Length |
Weight |
Recom. Mtg.Heights
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| DES3-20-50 |
N or LP |
50,000 |
21’ - 8” |
120# |
9’ to 14’ |
| DES3-20-60 |
N or LP |
60,000 |
21’ - 8” |
120# |
10’ to 15’ |
| DES3-20-75 |
N or LP |
75,000 |
21’ - 8” |
120# |
11’ to 18’ |
| DES3-30-50 |
N or LP |
50,000 |
31’ - 4” |
160# |
10’ to 15’ |
| DES3-30-60 |
N or LP |
60,000
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31’ - 4” |
160# |
11’ to 18’ |
| DES3-30-75 |
N or LP |
75,000
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31’ - 4” |
160# |
12’ to 20’ |
| DES3-30-100 |
N or LP |
100,000
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31’ - 4” |
160# |
13’ to 23’ |
DES3-40-50
|
N or LP |
50,000 |
41’ - 0” |
190# |
11’ to 18’ |
| DES3-40-60 |
N or LP |
60,000 |
41’ - 0” |
190# |
11' to 18' |
| DES3-40-75 |
N or LP |
75,000 |
41’ - 0” |
190# |
12' to 20' |
| DES3-40-100 |
N or LP |
100,000 |
41’ - 0” |
190# |
13’ to 23’ |
| DES3-40-125 |
N or LP |
125,000 |
41’ - 0” |
190# |
14’ to 25’ |
| DES3-40-150 |
N or LP |
150,000 |
41’ - 0” |
190# |
15’ to 27’ |
| DES3-50-100 |
N or LP |
100,000 |
50’ - 8” |
235# |
15’ to 27’ |
| DES3-50-125 |
N or LP |
125,000 |
50' - 8" |
235# |
15' to 27' |
| DES3-50-150 |
N or LP |
150,000 |
50’ - 8” |
235# |
16’ to 30’ |
| DES3-50-175 |
N or LP |
175,000 |
50’ - 8” |
235# |
17’ to 35’ |
| DES3-50-200 |
N or LP |
200,000 |
50’ - 8” |
235# |
18’ to 40’ |
| DES3-60-125 |
N or LP |
125,000 |
60 '- 4" |
265# |
16' to 30' |
| DES3-60-150 |
N or LP |
150,000 |
60’ - 4” |
265# |
17’ to 35’ |
| DES3-60-175 |
N or LP |
175,000 |
60’ - 4” |
265# |
17’ to 35’ |
| DES3-60-200 |
N or LP |
200,000 |
60’ - 4” |
265# |
18’ to 40’ |
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* Specify natural (N) or propane (LP) gas.
** Recommended mounting heights are provided as a guideline. Actual conditions may dictate variations from the above data.
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Always maintain the published clearances to combustibles.
Clearances published in DES3 Series manual and on warning label supersede data shown here.
Place signs where necessary in accordance with ANSI Standards.
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LITERATURE
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| Brochure |
Specifications |
Series Insert |
Manual |
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DES3 Series
