mr
.
steam
®
C U S E R I E S
Installation, Operating & Maintenance Manual
20
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. See page 24 for Time Clock instructions
To provide for safe and low temperature blow-
down, and to comply with National and local plumbing and
building Codes, it may be necessary to blowdown into an ASME
Code blow-down separator tank, or to take other precautions to
prevent damage to building drain plumbing. Consult with a
licensed plumber.
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:
The factory recommended setting for all CU boilers is 60 seconds
(100% turn).
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
approximately 60 seconds.
4. After 60 seconds: Motorized drain valve closes. Auto blowdown
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 Mr. Steam. For more information
please contact Mr. Steam at 1-800-76 STEAM.
out 1 out 2
˚
F
SET
WARNING
!
CAUTION
!
AUTOMATIC BLOWDOWN OPERATION & TESTING
DIGITAL1
®
CONTROL OPERATING
PARAMETERS
• Operating Temperature range 100 – 120 °F (37.5 – 49 °C)
• Backup Temperature shut off fixed at 130 °F (54.5 °C).
SETTING OPERATING TEMPERATURE
1. Press the SET button twice, the light under OUT 2 will be on
and the display will be flashing.
2. Use the UP / DOWN arrows to set the temperature.
Factory set at 100° F (37.5 °C).
3. Press the SET button again; the display will be solid and
showing room temperature (not pressing any button for 1
minute will also return the control to the room temperature).
NOTE: the control display remains on if the steam
bath generator switch is in the OFF position, however
power to the solenoids will be OFF.
60
sec
0
sec
30
sec
10 sec
Back
