Product Brochure
Ratings, Specifications, & Dimensions
Standard Features
• Fully packaged
• Integrated boiler control
system
• Beckett AFG oil burner
• Beckett GeniSYS primary
control
• Electronic ignitor 14KV
• Taco 007e ECM circulator
• Combustion target wall
• Vertical flue design
• Insulated jacket
designed for
easy removal
• Relief valve
A
S
M
E
H
MADE IN
U.S.A.
RELIEF VALVE
FLAME
OBSERVATION
PORT
FLUE
COLLAR
‘A’
‘B’
‘C’
DIA.
BUILT-IN DOMESTIC
WATER HEATER W/
3/4” CONNECTIONS
BOILER CONTROL
OIL BURNER
W/ PRIMARY
CONTROL
TEMP/PRESSURE
GAUGE
SUPPLY
24
5
8
“
14
1
2
“
12
1
4
“
3
5
8
“
2
1
8
“
1
1
2
“
3
3
4
“
5“
1
3
8
“
RETURN
31
5
8
“
1
1
2
“
DRAIN VALVE
BURNER SWING DOOR
CLEARANCE (OPEN 90°)
FLOOR
LINE
SEE NOTE 2
FRONT VIEW RIGHT SIDE VIEW
3
1
2
“
11”
9”
Notes:
1. Circulator supplied loose
2. Return fittings and drain valve shipped loose.
3. Piping shown hidden not furnished with boiler.
1
(C) Tankless coil available: RRO-3EC, RRO-4EC
* Boilers are shipped with the smaller nozzle installed in the burner. Larger nozzle and corresponding rating label
included and shipped loose.
NOTE: Nozzle size is not the same as GPH burner capacity, see burner specification sheet in O&I manual for
specific nozzle size & specs.
9/20
Rand & Reardon
Model Sections
Burner
Capacity
(GPH)
Input
(MBH)
DOE
Heating
Capacity
(MBH)
AHRI
Net
Ratings
(MBH)
AFUE
(%)
Tankless
1
(GPM)
AHRI
Designation
RRO-3E(C) 3
0.75* 105 92 80 87.0 3.00
1
RRO-3-[092E(C)]
1.00* 140 122 106 86.3 3.25
1
RRO-3-[122E(C)]
RRO-4E(C) 4
1.20* 168 148 129 87.0 3.75
1
RRO-4-[148E(C)]
1.50* 210 182 158 86.0 4.00
1
RRO-3-[182E(C)]
Rand & Reardon
Model
Minimum
Chimney
Requirements
Jacket
Depth
'A'
Jacket Rear to
Center of Flue
'B'
Flue Collar
Diameter
'C'
Approx Ship
Weight
(lbs.)
RRO-3E(C) 8” x 8” x 15’ 17-3/8” 8-1/4” 6” 560
RRO-4E(C) 8” x 8” x 15’ 22-3/8” 10-7/8” 7” 680