Aerovent IM-200 - Manual (Page 2)

2 IM-200
5. Mount the door switch so it will trip to close the circuit
when the door is open. The switch may be located so the
heater will come on when the door starts to open or when
fully open at the discretion of the user. See typical sug-
gested installations.
Door Switch and Suggested Installations
The door switch may be installed with the switch in the “free”
position when the door is either opened or closed. If the
switch is mounted so that it is in the “free” position when the
door is open, use the normally-closed circuit, terminals #1 and
#2. If the switch is mounted so that it is in the “free” position
when the door is closed, use the normally-open circuit, termi-
nals #3 and #4.
Installation #1: Floor Level Location - Switch is in “free”
position when the door is open. Use switch terminals #1 and
#2. Heater will fire when the door starts to open.
Installation #2: Overhead Location - Switch is in “free” posi-
tion when the door is closed. Use switch terminals #3 and #4.
Heater will fire only when the door is completely open.
Installation #3: Overhead Location - Switch is in “free” posi-
tion when the door is open. Use switch terminals #1 and #2.
Heater will fire when the door starts to open.
The unit can be operated manually with an on-off switch in
remote station or automatically from a door switch on an
“FREE” POSITION: 360°
location on actuator shaft
ACTUATOR
SHAFT
OPERATING
HEAD: May be
relocated four
90° positions.
LEVER LOCKING
NUT: Loosen to
to relocate “free”
position of adjustable
roller lever.
TERMINAL
CONNECTIONS:
#1 & #2 Normally
Closed
#3 & #4 Normally
Open
DOOR SWITCH
CLAMP PLATE
ALLENHEAD SCREW:
Loosen to adjust radius
of roller lever.
1 3 ⁄
16
" Min.
3" Max.
49°
49°
ADJUSTABLER
ROLER LEVER
MAXIMUM
TRAVEL
Door
Door
Track
Door
Switch
Actuated Position
Free Position
49° Max.
15° Min.
INSTALLATION
NO. 3
INSTALLATION
NO. 1
INSTALLATION
NO. 2
OIL TIGHT DOOR SWITCH
Connect to terminal 1 and 3 on terminal strip
in unit control box.
Connect as shown when switch is released
with door in open position.
Connect as shown when switch is held with
door in open position.