Weil-McLain RLS User Manual

88

Water & Steam Boilers – Series 2

For Gas, Light Oil, & Gas/Light Oil – Fired Burners

Burner Specification

& Data Sheet

Model RLS28 – 50 dimensionsFigure 1 Model RLS70 – 190 dimensionsFigure 2

Riello

Gas/Oil Burners

Model RLS

Burner Model Number A B C D E F G H I L M Approx. Wt. (pounds)

RLS28 18.75 18.69 22.88 8.50 5.50 13.88 6.44 31.88 4.25 6.63 1.50 95

RLS38 18.75 18.69 22.88 8.50 5.50 13.88 6.44 31.88 4.25 6.63 1.50 99

RLS50 18.75 18.69 22.88 8.50 5.50 13.88 6.44 31.88 4.25 6.63 1.50 101

Burner Model Number

RLS70 27.50 11.38 16.13 21.88 33.13 9.88 7.06 16.94 45.75 8.44 5.31 8.75 2.00 159

RLS100 28.88 12.75 16.13 21.88 33.13 9.88 7.06 16.94 45.75 8.44 5.31 8.75 2.00 165

RLS130 28.88 12.75 16.13 21.88 33.13 9.88 7.44 16.94 45.75 8.44 5.31 8.75 2.00 170

ABCDEFGH I LMNO

Part No. 550-142-023/0508

Approx. Wt. (pounds)

Weil-McLain 88 Water and Steam Boilers — Series 2 — For Gas, Light Oil, & Gas/Light Oil-Fired Burners

Burner specifications and settings

Burner data — #2 Fuel oil/Natural gas — ModulatingTable 1

Boiler

Burner

Pressure

Manifold

Model

Model

Number

Drop Thru

Gas Train

Inches

W.C.

Number

488R RLS28 1.19 4.60 5.79 14 5.0 1 23 67 22 42 70 — — — — — —

488 RLS28 1.19 4.85 6.04 14 5.0 2 23 67 22 42 70 — — — — — —

588 RLS38 1.88 5.85 7.73 14 5.0 1 20 50 19 41 55 — — — — — —

688 RLS50 2.09 5.88 7.97 14 5.0 3 32 90 32 50 90 — — — — — —

788 RLS50 2.12 5.85 7.97 14 5.0 5 35 83 35 45 83 — — — — — —

888 RLS70 3.04 4.36 7.40 14 7.5 0 1.5 6.0 — — — 130 0 40 120 30 100

988R RLS70 3.18 4.14 7.32 14 7.5 0 1.8 7.5 — — — 130 0 40 120 27 100

988 RLS70 3.18 4.39 7.57 14 7.5 1 1.8 7.5 — — — 130 0 40 120 27 100

1088R RLS70 3.35 3.68 7.03 14 7.5 3 1.9 9.0 — — — 130 0 32 120 45 100

1088 RLS100 3.35 3.93 7.28 14 7.5 4 1.9 9.0 — — — 130 0 32 120 45 100

1188 RLS100 3.55 4.45 8.00 14 6.0 4 2.2 5.2 — — — 130 0 30 120 35 100

1288 RLS100 2.60 5.30 7.9 14 6.0 4 2.0 6.0 — — — 130 0 30 120 40 100

1388 RLS100 3.35 4.65 8.00 14 6.0 9 2.0 6.5 — — — 130 0 30 120 40 100

1488 RLS130 2.81 4.54 7.35 14 6.0 6 2.0 6.0 — — — 130 0 40 120 55 100

1588 RLS130 2.99 4.65 7.64 14 5.5 7 2.5 7.0 — — — 130 0 40 120 30 100

1688R RLS130 3.40 4.85 8.25 14 5.0 8 2.5 8.0 — — — 130 0 40 120 30 100

1688 RLS130 3.40 5.10 8.5 14 5.0 9 2.0 9.0 — — — 130 0 50 120 30 100

Pressure

Inches

W.C.

Gas Pressure

Required at
Gas Control

Inches

W.C.

Min

Inlet

Inches

W.C.
Max

Gas Pilot
Pressure

Inches

W.C.

Combustion

Head

Setting

Combustion

Air

Indications

Low

High

Fire

Fire

Servo Motor Cam

Position Settings

Blue Orange Red 1 2 3 4 5 6 Qty. GPH

@ 100

PSIG

112.75

2.50

113.00

2.50

114.00

3.50

114.50

5.00

115.50

6.00

116.50

6.50

117.50

7.25

117.50

7.50

118.50

7.25

118.50

7.50

9.00

1
1

9.00

1110.00

10.00

1111.00

11.00

1112.00

12.00

1112.00

12.00

1113.00

12.50

1113.00

13.00

Oil

Nozzles

Brand Type Spray

Delavan B

Delavan B

Delavan B

Delavan B

Delavan B

Delavan B

Delavan B

Delavan B

Delavan B

Delavan B

Delav

an B

Delavan B

Delavan B

Delavan B

Delavan B

Delavan B

Delavan B

Pressure

Supply

Angle

70°
60°

70°
60°

60°
60°

60°
60°

60°
80°

90°
60°

90°
60°

60°
60°

60°
60°

60°
60°

60°
60°

60°
60°

60°
60°

60°
60°

60°
60°

60°
60°

60°
60°

Oil

PSIG

180 AL65C 22.0

180 AL65C 22.0

167 AL65C 22.0

173 AL65C 22.0

168 AL65C 22.0

180 AJ4CC 52.5

180 AJ4CC 52.5

180 AJ4CC 52.5

209 AJ4CC 52.5

209 AJ4CC 52.5

180 AJ4CC 52.5

180 AJ4CC 52.5

200 AJ4CC 52.5

200 AJ4CC 52.5

220 AJ4CC 52.5

215 AJ4CC 52.5

215 AJ4CC 52.5

Fuel
Independent
Motor Driven

3450 RPM

Suntec

Gear

Type

GPH

Notes for Table 1, Table 2 and Table 3

Burner capacities listed for elevations up to 2,000 feet. For higher eleva-1.
tions, consult local Weil-McLain distributor/ agent or sales office.

Light oil ratings based on No. 2 fuel oil with heating value of 140,000 2.
Btu per gallon.

Gas ratings based on natural gas with heating value of 1,000 Btu per cubic 3.
foot and specific gravity of 0.60. Gas burners for other gases are available.
Consult local Weil-McLain distributor/agent or sales office.

Boiler-burner unit to be adjusted to achieve +0.10 inches W.C. pressure at 4.
the flue collar, resulting in positive pressure in firebox as listed.

Minimum gas pressures listed are subject to variations due to job condi-5.
tions. Gas burners for other gas pressures are available. Consult local
Weil-McLain distributor/agent or sales office.

All gas train sizes shown are based on a supply pressure to the regulator of 6.
7 inches w.c. Optional trains available for other pressures upon request.

All Settings and pressures shown are for initial start-up. Final values should 7.
be confirmed with combustion analysis.

Gas/Light Oil control Systems: 8.

LHL: Low-high-low-off firing conditions – two position air and fuel •
controlled by separate motor, open damper pre-purge.

MOD: On-off operation with proven low fire start and full modu-•
lating firing conditions. Proportional motor drives fuel metering
valve and combustion air damper according to firing conditions;

open damper pre-purge.
120/60/1 control circuit is used for all burners.9.
All 3 phase models require a separate 12/60/1 control voltage supply.10.
Burner settings shown are for initial start-up. Follow burner manual to 11.

adjust burner using combustion test instruments as directed.
120/60/1 control circuit is used for all burners.12.
488R to 788 units require a single SPDT controller for LHL firing rate 13.

operation on both fuels.
888 to 1688 units require a 4 – 20mA 0 – 10vdc or 135 ohm signal for 14.

modulation on gas plus a SPDT controller for LHL firing rate operation
on oil.

Motor relay or contactor is standard on all units.15.
Combustion Controls:16.

Siemens LFL 1.335 flame safeguard control monitors the oil or gas •

burner flame with visual diagnostic window, provides pre-purge and

post purge, provides switching necessary to allow firing rate motor to

2 Part No. 550-142-023/0508