Reflect-O-Ray
®
EDS-4DI & EHS-4DI
Installation, Operation & Service
Combustion Research Corporation
Page 3
INSTALLATION NOTES
A. GENERAL INSTALLATION LAYOUT
1. Height from floor - 8' to 30' (refer to chart for
recommended minimum mounting heights). There are
no restrictions on the mounting height of the equipment
providing the design is based on the full heat loss of
the building. Consideration must be given to the
building heat loss so as to cover the air infiltration
and/or the mechanical ventilation of the building. For
serviceability and optimum performance the system
should be mounted with careful consideration to the
use of the building.
B. RADIANT TUBE ELEMENT LENGTHS FOR
STANDARD (EDS-4DI) SYSTEMS.
1. To dissipate maximum heat and avoid continuous
condensation in the radiant tube elements, each burner
will be provided with the minimum or maximum tube
lengths as outlined in the following chart. A heavy
walled 16 gauge aluminized steel tube (9'-9") long is
used adjacent to each burner.
NOTE: Burners with
high fire inputs of 180,000 Btu/hr and higher use
one 16 gauge ALUMATHERM tube and one 16
gauge ALUMINIZED STEEL TUBE (swaged one
end)
. The remainder of the radiant tubing shall be of
spiral wound aluminized steel tube. Each single flow of
radiant tube shall incorporate an adjustable damper for
regulating burner airflow.
2. A multiple burner system consists of two or more
burners. Refer to the following charts for radiant tube
lengths and elbow and tee placement.
C. RADIANT TUBE ELEMENT LENGTHS FOR HIGH
OUTPUT (EHS-4DI) SYSTEMS.
1. To dissipate maximum heat and avoid continuous
condensation in the radiant tube elements, each burner
will be provided with the minimum tube lengths as
outlined in the following chart. A heavy walled 16-
gauge aluminized steel tube 9'-9” long is used adjacent
to each burner. On 180,000 Btu and higher units, a 10’
long 16-gauge alumatherm steel tube is used just
downstream of the burner and the next tube is a 9’-9”’
long 16-guage aluminized steel tube. The remainder
of the radiant tubing shall be of spiral wound
aluminized steel tube. Tee's must be installed after
any turbulator tube. Each single flow of radiant tube
shall incorporate an adjustable damper for regulating
burner airflow. NOTE: The radiant tubes for the
Reflect-O-Ray
®
EHS-4DI
systems are heat treated for
optimum heat transfer
DESIGN TUBE LENGTH REQUIREMENTS
FOR OPTIMUM EFFICIENCIES
The dimensions in the table listed below are basic
guidelines used in the design of the
Reflect-O-Ray
®
EDS-
4DI & EHS-4DI
systems. Every effort should be made to
hold the dimensions given on the layout drawing. The
factory should verify any deviations from the layout
drawing or for alternate and/or customized layouts.
Burner
BTU/hr
Input
(High Fire)
BTU/hr
Input
(Low Fire)
EDS-4DI Systems
Standard Output
Min. ft. (M) Max. ft. (M)
EHS-4DI Systems
Hi-Output Systems
Min. ft. (M) Max. ft. (M)
Min. Distance
From Burner to
Elbow
ft. (M)
Min. Distance
From Burner to
Damper or Tee
/Ft. (M)
08040.NG/LP.DI 40,000 28,000
30
45
20
35
10
10
08045.NG/LP.DI 45,000 31,000
30
45
20
35
10
10
08050.NG/LP.DI 50,000 35,000
30
45
20
35
10
15
08055.NG/LP.DI 55,000 38,000
30
50
20
45
10
15
08060.NG/LP.DI 60,000 42,000
30
50
20
45
10
20
08065.NG/LP.DI 65,000 45,000
30
60
20
45
10
20
08070.NG/LP.DI 70,000 48,000
40
60
25
50
10
20
08075.NG/LP.DI 75,000 52,000
40
60
25
50
10
20
08080.NG/LP.DI 80,000 55,000
40
60
25
50
15
25
08085.NG/LP.DI 85,000 57,000
40
60
30
50
15
25
08090.NG/LP.DI 90,000 62,000
40
60
30
50
15
25
08095.NG/LP.DI 95,000 65,000
40
60
30
60
15
25
08100.NG/LP.DI 100,000 70,000
50
70
30
60
15
25
08105.NG/LP.DI 105,000 73,000
60
80
40
80
15
25
08110.NG/LP.DI 110,000 76,000
60
80
40
80
15
25
08115.NG/LP.DI 115,000 79,000
50
70
30
70
15
25
08120.NG/LP.DI 120,000 83,000
50
70
30
70
15
30
08125.NG/LP.DI 125,000 86,000
50
70
40
70
15
30
08130.NG/LP.DI 130,000 90,000
50
70
40
70
20
30
08135.NG/LP.DI 135,000 93,000
60
80
40
70
20
30