Bryan Boilers CL, RW User Manual

TM

BRYAN STEAM

Automatic Surface and Bottom

Blowdown System

Benefits

• Helps maintain safe levels of
dissolved solids in boiler water

• Prevents scale formation

• Helps to eliminate costly down time

• Frees boiler operator for other duties

Form No. 8200

(05/02)

Features

• UL/CSA recognized components

• Honeywell 24 hour time clock

• Dial marked in quarter hour
increments

• Motorized ball valve with
state-of-the-art electric actuator

• Valve actuator is sealed and
permanently lubricated

• Controls enclosed in a NEMA
Type 1 enclosure

All boilers require proper care and maintenance
to maintain optimal performance. In particular,
steam boilers will operate more efficiently if ser­viced by either a surface or bottom blowdown
system. Bryan Boilers can provide these systems
in either manual or automatic designs. A regular
blowdown procedure to remove accumulated
sludge will extend the life and performance of
your boiler . A BR Y AN AUTOMATIC BLOWDOWN
SYSTEM will assure that your boiler has regular
blowdown on a preset schedule.

The time and duration of the blowdown period

is selectable. Multiple sequences during a

24-hour period can be achieved if necessary.

The system is comprised of a 24-hour syn­chronous drive time clock and a time delay
relay in a NEMA Type 1 panel. This controls a
motorized ball valve. Our bottom blowdown sys­tem includes manually operated quick opening
and slow opening blowdown valves. Our surface
blowdown system includes a gate valve and a
motorized valve. The bottom blowdown is piped
to allow for manual bypassing of the automatic
system should the need arise. These systems
can be installed at the factory or are available
for field installation on existing boilers.

Bryan Automatic Surface and Bottom Blowdown System

➊

1. NEMA Type 1 Panel

2. Panel door latch

3. On-off switch

4. Fuse

5. Indicating lamp

6. Power supply
terminals

7. 24-hour time clock

8. Time delay relay

9. Terminals to
motorized ball valve

Recommended piping diagram for Automatic
Surface Boiler Blowdown System*

➋

➐

➑

➏

➒

➎

➍

➌

Item Qty. Description

1 1 Gate valve
2 1 Motorized valve

* For Bryan AB, CL, DR, F, K, RV and RW Series Boilers

Recommended piping diagram for Automatic
Bottom Boiler Blowdown System*

Item Qty. Description

1 1 Quick-opening valve
2 1 Slow-opening valve
3 1 Globe valve
4 1 Motorized valve

* For Bryan AB, CL, DR, F, K and RV Series Boilers

NOTE: Available for RW Series, but requires additional piping.

Bryan Steam LLC — Since 1916

783 N. Chili Ave., Peru, Indiana 46970 U.S.A.
Phone:[phone] • Internet:www.bryanboilers.com
Fax:[phone] • E-mail:[e-mail]

Form No. 8200 ©2002 Bryan Steam LLC 52-4229

Printed in USA