mr
.
steam
®
C U S E R I E S
Installation, Operating & Maintenance Manual
Steam Generator
Steam Vent
Figure 4
Run
Switch
Switch
Time
3
4
15 min.
OFF
OFF
30 min.
OFF
ON
60 min.
ON
OFF
MECHANICAL 30-MINUTE ROOM TIMER
(PN CU-99216B)
INSTALLING THE TIMER
Image to the right shows the default
position of the normally open 30-minute
timer switch. signals a situation where
minor injury or product damage may occur
if you do not follow instructions. Maximum
run time can be set up to 30 minutes.
IMPORTANT NOTE:
Only use the normally
open (N.O.) terminal when
wiring the mechanical
timer.
CONNECTING THE
ROOM TIMER
• Remove one of the knockout holes on the left side
of the boiler jacket.
• Remove jumper shown in Figure 3. Wire the timer‘s nor-
mally open terminal to the terminal block, as shown in
Figure 3
• Mount the timer plate assembly on a 2 x 4 Electrical box
(not supplied).
SETTING A RUNNING TIME
To set the desired running time during which the steam
generator will operate, turn timer knob clockwise.
The steam solenoid connected to the timer is switched on.
The displayed running time is counted down.
DIGITAL 30-MINUTE ROOM TIMER
(cont.)
Maximum run time can be set at 15, 30 or 60
minutes. Use switches 3 and 4 to set run time.
SETTING A RUNNING TIME
Using the “–” and “+” buttons, you can set the desired
running time during which the steam generator will oper-
ate, press the “START/STOP” button. The steam solenoid
connected to the timer is switched on. The displayed
running time is counted down while the colon in the
center of the time display flashes.
END OF RUNNING TIME
After the preset running time has elapsed, the timer
switches the connected steam solenoid off issuing
short beeps (for up to 15 seconds). The value 0:00 is
shown on the display, and the colon stops flashing.
1. Press the “START/STOP” button to stop the
acoustic signal. The previously set short time
reappears on the display (repeat function).
2. If you press the “START/STOP” button again,
the timer restarts counting down the displayed
running time.
END
OF
RUNNING
TIME
After
the
preset
running
time
has
elapsed,
the
timer
switches
the
connected
steam
solenoid
off.
31
Make sure the boiler and pipes are not hot
and have no pressure before installing the steam vent.
1.
The steam vent shall be plumbed into a Tee in the
steam line between the boiler and the solenoid
valve. Only one steam vent is required, even if the
boiler services two rooms.
2.IMPORTANT NOTE:
The steam vent should
remain accessible for service.
3.
The steam vent should be oriented vertically, with the
threads down, as shown in Figure 2.
4.
The steam vent is provided with 3/4” NPT male and 1/2”
NPT female thread for connecting to the steam line.
SETTING A RUNNING TIME
Using the button, you can set the desired running time
during which the steam generator will operate. The
steam solenoid connected to the timer is switched on.
Steam Generator
Steam Vent
Figure 4
Figure 2
Figure 3:
Wiring Diagram
As the timer counts down, the corresponding light
will illuminate indicating the amount of time left.
END OF RUNNING TIME
After the preset running time has elapsed, the timer
switches the connected steam solenoid off. The red
light indicating the steam is off will be illuminated.
REMOVE
JUMPER WHEN
INSTALLING
TIMER
STEAM
SOLENOID
VALVE
N
WHT
S
BLK
BLK
BRN
L
BLK
L
BLK
WHT
WHT
DIGITAL 1 CONTROL
