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LD3 Series: Residential Dual-Stage Heater

Premium Models

MP – Modulating Series

HL3 – Two Stage Series

DX3 – Single Stage Series

Standard Models

DET3 – Two Stage Series

DES3 – Single Stage Series

Residential Garage

LD3 – Two Stage Series

LS3 – Single Stage Series

Specialty Models

SS – Stainless Steel Series

QTD – Two Stage Quad

QTS – Single Stage Quad

LD3 Series: Residential Dual-Stage Heater

The LD3 Series couples the energy savings of two-stage technology with the highest quality features available. Designed for application into low ceiling or select residential applications, the LD3 Series heaters are the lowest BTU output heaters offered by Re-Verber-Ray.Features include those found on the LS3 Series, plus microprocessor controls designed to eliminate nuisance shutdowns with a ‘soft-lockout’ feature. Also, an external LED self-diagnostic indicator light is provided to assist in troubleshooting the unit. Benefits of the LD3 Series include superior fuel economy, comfort levels and equipment longevity.* Select models are CSA Design Certified for residential use (attached to living quarters). V3_tubehtr_0
FeaturesSpecificationsLiteratureParts & AccessoriesFAQBuy
Residential_Features

Features:

  • Two-stage Technology.
  • Hot Surface Ignition with Flame Rod Sensing.
  • External operational light(s).
  • 24V Control Wiring with Micro-processor Circuitry.
  • Dimpled Baffle-MAX technology.
  • Flex connection & gas cock included.
  • 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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BTU Range: 40,000 – 50,000 BTU/h
Lengths: 15-30 ft.
Gas Type: Natural or Propane
Combustion Chamber: Black Coated Titanium Treated Steel
Radiant Tubes: Black Coated Aluminized Steel
Certification: AnSI Z83.20, CSA 2.34, CSA no. 7-89
Warranty: 1/3/5 (Components/Tubes/Burner)


 

PRODUCT SPECIFICATIONS
ELECTRICAL
  • 120v, 60Hz, 1Ph., 3-wire
  • 4.8A starting, 1.1A running
CONTROLS
  • Pre-purge
  • 24V thermostat control
  • Micro-processor circuitry
TUBE CONSTRUCTION
  • Stated to the left
  • 4” to 3” 16 ga. tapered construction
  • Patent pending “Dimpled Baffle MAX”
  • Labor saving, interlocking swaged tube design
REFLECTORS
  • Highly polished aluminum
  • End caps included
  • 0°-45° rotatable angle
  • Tension springs
IGNITION / SENSE
  • Moisture and corrosion resistant ignition module.
  • Hot surface ignition
  • Flame rod sense
COMBUSTION AIR
  • Equipped for ducted air
    intake from roof or sidewall.
VENTING
  • 3″ single vent
  • 3”x4”x3” common Y vent. (with single thermostat & ERK accessory).
  • Required for residential
    applications.
GAS CONNECTION
  • 1/2″ NPT ball valve/inlet tap included
  • 5/8 in. flare connecting to 1/2 in. NPT adapter to 1/2 in. x 24 in. (304) SS flex connector provided.
GAS SUPPLY (inches WC)
  • MAN. 3.5″ NAT or 10.0″ LP
  • MIN. 5.0″ NAT or 11.0 LP
  • MAX. 14.0″ NAT or 14.0″ LP
KIT CONTENTS
  • All hangers & couplers
  • Reflector end caps
BTU Range: 40-50 MBH
Lengths: 15-30 Ft.
Gas Type: Natural or Propane
Combustion Chamber: Black Coated Titanium Treated Steel
Radiant Tubes: Black Coated Aluminized Steel
Certification:
ANSI Z83.20, CSA 2.34, CSA No. 7-89
Limited Warranty: 1-3-5 (Components-Tubes-Burner)
OPTIONAL EQUIPMENT
“U” or “L” Configurations: Available on Most Models
Stainless Steel Upgrades:
Available (SSRAO, SSRAO-5)
24V Controls: Standard
Indicator Lights: Standard
Protective Guards: Available (PG)
Side Shield Extensions: Available (SSE)
Outdoor Approval: Available (OD-KIT)

 


AVAILABLE LS3 MODELS & CLEARANCES

[———- Clearance to Combustibles ———]
Model #
Gas BTU High Fire BTU Low Fire Straight Length U Tube Length Weight Recom. Mtg.Heights Mounting Angle Sides Top Below
LD3-15-40 NAT or LP 40,000 28,000 16’ – 10” N/A 85# 8’ to 13’ 0 15 6 45
LD3-15-50 NAT or LP 50,000 35,000 16’ – 10” N/A 85# 10’ to 15’ 0 11 6 48
LD3-20-40 NAT or LP 40,000 28,000 21′ – 10″ 13′ – 0″ 100# 8′ to 13′ 0 15 6 45
LD3-20-50 NAT or LP 50,000 35,000 21’ – 10” 13′ – 0″ 100# 9’ to 15’ 0 11 6 48
LD3-30-50 NAT or LP 50,000 35,000 31’ – 7” 17′ – 8″ 120# 9’ to 14’ 0 11 6 48
LS3_Clearances 2 If the heater is mounted below 8 feet, protective guards (PG) are required. Typical or recommended mounting heights are provided as a guideline. Actual conditions my dictate variations from the above data.

3 Model requires LV3-5EA-SUB optional accessory package when installing in a ‘U’ configuration.
4 Always maintain clearance to combustibles. Use high BTU output when determining clearances. The
minimum end clearance is 12 in. Place signs where necessary in accordance with ANSI/NFPA Standards.
Clearances published in LS3 Series manual and on warning label supersede data shown on this brochure.
Clearances posted above reflect those of a heater installed at a mounting angle of 0° from horizontal and
without the use of add-on options.
5 Heaters mounted on an angle between 0° to 45° must maintain clearances posted for 0° or 45°; whichever is greater(not shown). See LD3 Series installation manual for additional information.

 

LD3 Series

LBLD3_LD3-Brochure_2-14_th LIOLD3_LD3-Series-Manual-r32513_2-14_th
Brochure Installation Manual
lsld3_spec_th LIOTH_Tube-Heater-Precheck-8.5x11_1-13.th lpkth_7-13.th
Submittal
Application Guidelines
Packing List

 

 

 

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