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connection and Operation of temperature

Response devices (RRl standard, OcI option,

and PRv option)

RRl -

 Dampers will be supplied with a thermostat-type 

temperature response device, as a standard. The device is a RRL  
(resettable link device), which only incorporates one thermostat 
and therefore the damper remains closed as soon as its sensor 
temperature is reached. The RRL does not contain blade 
indication switches. Refer to 

figure 5

 for wiring of the RRL 

thermostat.
If  RRL is ordered with a pneumatic actuator, an EP switch is 
required with an appropriate electric power circuit to allow the 
electric thermostat to control the pneumatic actuator. 

OcI -

 The OCI (open or closed indicator) option contains a single 

pole, double throw switch used to indicate the damper blade 
position. The switch provides a positive open or closed signal 
when used in conjunction with remote indicator lights. Refer to 

fig. 7

 for wiring of the OCI option.

PRv -

 The PRV (pneumatic relief valve) option is heat responsive 

device used with pneumatic actuators. This can be used in place 
of EP switch where a RRL is used.  The PRV activates when 
temperature in excess of the temperature of the fusible link are 
detected. When the fusible link melts, air from the actuator is 
exhausted to close the dampers. Pneumatic actuators are to be 
piped per local code. 

RatINGS

 

Integral Switch type:

  Single Pole, double throw

 

electrical capacity:

  10 Amps, 

1

/

3

 hp, 120 or 240 Vac 

                                    

1

/

2

 Amp, 125 Vdc; 

1

/

4

 Amp 250 Vdc   

                                     5 Amps, 120 Vac “L” (lamp load)
                                    1.0 Amps, 24 Vac
                                    1.5 Amps, 24 Vdc

  temperature limit

:    165° F (standard primary sensor)

                                     212° F (optional primary sensor)

L1

DAMPER

INDICATOR

LIGHTS

L2

CLOSED POSITION OF THE DAMPER.

A BLUE MARKER INDICATE THE

THE SWITCH WIRES WRAPPED WITH

NOTE:

YELLOW

ELECTRICAL CAPACITY = 10AMP @ 120 / 240 VAC

YELLOW

YELLOW

YELLOW

NO

NO

S2

S1

BY OTHERS

OcI Wiring

Fig. 5

Fig. 6

L1

M

L2

ELECTRIC DAMPER

ACTUATOR OR PNEUMATIC

SOLENOID VALVE

PRIMARY TEMP

SENSOR

ELECTRICAL CAPACITY = 10 AMP  @ 120 / 240 VAC

BLACK

ORANGE

P

NC

BLACK

WHITE/RED

RRl Wiring

Damper model   

Maximum Single  

Maximum Overall size for

 

 

 

Section size 

 

Multi-section dampers

IMO-310  

 

32 in. x 32 in. 

 

       64 in. x 32 in.

 

 

         (813mm x 813mm)   

   (1626mm x 813mm)

SSIMO-310 

 

32 in. x 32 in. 

                    64 in. x 32 in.

 

 

         (813mm x 813mm)   

   (1626mm x 813mm)

IMO-311  

 

32 in. x 32 in. 

 

       64 in. x 32 in.

 

 

         (813mm x 813mm)   

   (1626mm x 813mm)

SSIMO-311 

 

32 in. x 32 in. 

                    64 in. x 32 in.

 

 

         (813mm x 813mm)   

   (1626mm x 813mm)

Size limitations

Manually operated dampers (IMO-310 & SSIMO-310)

Manually operated dampers utilize a spring and fusible link assembly to close the damper during elevated temperature 
conditions. No electrical power is required for these models.

Motor operated dampers (IMO-311 & SSIMO-311)

Motor operated dampers are supplied with an electric thermal response device which cuts power to the spring return 
actuator upon sensing an elevated temperatures. See below for electrical connections.

Summary of Contents for 464603

Page 1: ...able for damages resulting from misapplication or misuse of its products Greenheck will not be responsible for any installation or removal costs Greenheck will not be responsible for any service work or backcharges without prior written authorization Receiving and Handling Upon receiving dampers check for both obvious and hidden damage If damage is found record all necessary information on the bil...

Page 2: ...ated a minimum of 6 in 152mm on the damper side and 18 in 457mm on the non damper side see figures 1 4 Any US Coast Guard type approved insulation with an A60 rating can be used The insulation is to be installed on the duct with 0 106 in 2 7mm steel pins and 1 12 in x 1 24 in x 0 4 in 28mm x 31mm x 10mm steel clips 2 Attaching Damper to Duct The damper can be installed to the duct using either bol...

Page 3: ...code RATINGS Integral Switch Type Single Pole double throw Electrical Capacity 10 Amps 1 3 hp 120 or 240 Vac 1 2 Amp 125 Vdc 1 4 Amp 250 Vdc 5 Amps 120 Vac L lamp load 1 0 Amps 24 Vac 1 5 Amps 24 Vdc Temperature Limit 165 F standard primary sensor 212 F optional primary sensor L1 DAMPER INDICATOR LIGHTS L2 CLOSED POSITION OF THE DAMPER A BLUE MARKER INDICATE THE THE SWITCH WIRES WRAPPED WITH NOTE ...

Page 4: ...oting The following is a possible cause and correction list for common concerns with the dampers Damper Maintenance Dampers do not typically require maintenance as long as they are kept dry and clean If cleaning is necessary use mild detergents or solvents If lubrication is desired for components such as axle bearings jackshaft bearings and jamb seals do not use oil based lubricants or any other l...

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