Mr Steam CU Blowdown Valve User Manual

Automatic Blowdown Operation & Testing

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Blowdown Duration Adjustment Instruction

NOTE: The Time Clock controls boiler operation. The boiler is on when the
timer is on. The Blowdown Valve will open when the timer turns the boiler off.

WARNING

Hazard of Electric Shock. Disconnect all power supplies

!

before making any adjustments

CAUTION

!

To provide for safe and low temperature blowdown, and to

30

sec

comply with National and local plumbing and building Codes, it may be
necessary to blowdown into an ASME Code blowdown separator tank, or
to take other precautions to prevent damage to building drain plumbing.
Consult with a licensed plumber.

WARNING

Burn Hazard. Pressurized Steam and Hot Water is

!

discharged during blowdown.

Duration Adjustment

Using a small flathead screwdriver, rotate the adjustment screw to the
desired setting.

IMPORTANT: Do not set less than 10 seconds. Do not force screw past
min and max stops, screw does not rotate more than 300 degrees

Factory Recommended Settings:

• 100psi Trim: 50% turn (shown, 30 seconds)

• 15psi Trim: 100% turn (shown, 60 seconds)

60

sec

0

sec

10 sec

Automatic Blowdown Operation & Testing

1. Turn the override switch to permanent ON (I).

2. Turn the generator On/Off Switch to “ON”. On/Off Switch pilot
light and generator should be “ON”. Motorized drain valve should
be closed. Auto blowdown light should be “OFF”.

3. Turn the override switch to permanent OFF (0). On/Off Switch
pilot light and generator should be “OFF”. Auto blowdown light
should be “ON” Motorized drain valve remains open for the duration
set with the adjustment screw.

4. After the set time: Motorized drain valve closes. Auto blowdown

Back

light should be “OFF”. On/Off Switch pilot light and generator
remains “OFF”.

5. Turn the override switch to automatic ( ).

NOTE: ASME blowdown separator tank systems are available from Sussman Electric Boilers/Mr. Steam.
For more information please call 1-800-76 STEAM.

®

Sussman-Automatic Corporation

www.sussmanboilers.com
www.mrsteam.com

west coast: 9410 S. La Cienega Blvd. Inglewood CA 90301 • 800 72 STEAM • fax: [phone]

®

•

[e-mail] • 718-937-4500 • 800-238- 3535 • Fax: [phone]

•

[e-mail]

43-20 34th Street, Long Island City, NY 11101

•

800 76 STEAM

•

fax: [phone]

mr.steam

100483 rev. 9.13