Greenheck Smoke Detector D4120 (Install) User Manual

Page 7

SS-300-000

I56-2967-002R

[13.1] deTecTor SenSor
1. Remove the sensor to be cleaned from the system.
2. Remove the sensor cover by pulling outward on each of the four removal

tabs that hold the cover in place. See Figure 10.

3. Vacuum the screen carefully without removing it. If further cleaning is

required continue with Step 4, otherwise skip to Step 7.

4. Remove the chamber cover/screen assembly by pulling it straight out.
5. Use a vacuum cleaner or compressed air to remove dust and debris from

the sensing chamber.

6. Reinstall the chamber cover/screen assembly by sliding the edge over the

sensing chamber. Turn until it is firmly in place.

7. Replace the cover using the holes for the LEDs for alignment and then

gently pushing it until it locks into place.

8. Reinstall the detector.
[13.2] reinSTaLLaTion
1. Reinstall the detector in its housing.
2. Restore system power.
3. Perform Detector Check, Section 12.3.
4. Notify the proper authorities testing has been completed and the smoke

detector system is back in operation.

[14] SenSor rePLacemenT (ParT no. 2d51)
1. Remove the sensor head by rotating counterclockwise.
2. Pull gently to remove it.
3. To replace the sensor head, align the mounting features and rotate clock-

wise into place.

[15] oPTionaL acceSSorieS
[15.1] rTS451/rTS451keY remoTe TeST STaTion
The RTS451/RTS451KEY Remote Test Station facilitates test of the alarm capa-
bility of the duct smoke detector as indicated in the RTS451/RTS451KEY man-
ual. The D4120 duct smoke detector can be reset by the RTS451/RTS451KEY.
To install the RTS451/RTS451KEY, connect the device as shown in Figure 12;
wire runs must be limited to 25 ohms or less per interconnecting wire. If a
system control panel is used, the panel itself may require testing.
[15.2] SSk451 muLTi-SignaLing acceSSorY
The SSK451 Multi-Signaling accessory combines a sounder feature with a key
activated test and reset function. Green, amber and red LEDs provide a vi-
sual indication of power, trouble, and alarm respectively. An optional strobe
(PS24LOW) with a smoke lens can be added to conform to the codes of certain
jurisdictions.

To install the SSK451, connect the device as shown in Figure 14.

figure 10. deTecTor SenSor exPLoded VieW:

SENSOR

COVER

SENSING

CHAMBER

COVER AND

SCREEN

SENSOR

CHAMBER

COVER

REMOVAL

TABS

H0584-00

figure 11. Wiring diagramS for oPTionaL acceSSorieS:

ALARM

AUX OUT –

(+)

(–)

ALARM

AUX OUT –

(+)

(–)

RED

MHR/MHW

(OPTIONAL) AUDIO

ALERT

D4120

DUCT DETECTOR

D4120

DUCT DETECTOR

RA400Z(OPTIONAL)

REMOTE (LED)
ANNUNCIATOR

H0554-00

figure 12. Wiring diagram for d4120
To aPa151 or aPa451:

19
20

D4120

APA151/451

(GREEN LED) POWER

FIELD
INSTALLED
JUMPER

–

AUX OUT +

AUX OUT –

ALARM

R TEST

ACC +

ACC –

R RESET

5
4

SUP, NO
SUP, C

NOTE: WIRING DIAGRAM SHOWN IS FOR D4120 4-WIRE DUCT SMOKE

DETECTOR SYSTEM EQUIPPED WITHOUT A CONTROL PANEL.
NOTE: A TROUBLE CONDITION IS INDICATED

BY LOSS OF GREEN LED

COMMON

(RED LED) ALARM

figure 13. Wiring diagram for d4120 To rTS451/rTS451keY:

19
20

1
5

D4120

RTS451/RTS451KEY

(GREEN LED)

POWER

(RED LED)

ALARM

FIELD

INSTALLED

JUMPER

–

AUX OUT +

AUX OUT –

ALARM

R TEST

ACC +

ACC –

R RESET

5
4

SUP, NO
SUP, C

FOR RTS451KEY ONLY WITHOUT A CONTROL PANEL

H0582-00

CAUTION

Canned aerosol simulated smoke (canned smoke agent) formulas will vary by
manufacturer. Misuse or overuse to these products may have long term adverse
effects on the smoke detector. Consult the canned smoke agent manufacturer’s
published instructions for any further warnings or caution statements.

[12.6] inSTaLL The coVer
Install the covers making sure that the cover fits into the base groove. Tighten
the seven screws that are captured in the covers.

NOTE: Verify sensor cover gasket is properly seated on cover prior to cover
installation.
[13] deTecTor cLeaning ProcedureS
Notify the proper authorities that the smoke detector system is undergoing
maintenance, and that the system will temporarily be out of service. Disable
the zone or system undergoing maintenance to prevent unwanted alarms and
possible dispatch of the fire department.

19
20

1
8

3
2

D4120

SSK451

SUP. SIGNAL

POWER +

–

AUX OUT +

AUX OUT –

ALARM

R TEST

ACC +

ACC –

R RESET

5
4

SUP, NO
SUP, C

NOTE: WIRING DIAGRAM SHOWN IS FOR D4120 4-WIRE DUCT SMOKE

DETECTOR SYSTEM EQUIPPED WITHOUT A CONTROL PANEL.

POWER –

COMMON

TEMPORAL SELECT

ALARM SIGNAL

TEST

RESET

FIELD

INSTALLED

JUMPER

FOR

TEMPORAL

PATTERN

figure 14. Wiring diagram for d4120 To SSk451:

H0583-00

C1009-00