Carrier CRSMKSUP001A00, CRSMKDET001C00 User Manual

48/50HG014-028 Single-Package Rooftop Units Accessory Return and Supply
Smoke Detectors
Installation Instructions
Part No. CRSMKDET001C00 and CRSMKSUP001A00
CONTENTS
GENERAL SAFETY CONSIDERATIONS INSTALLATION
Check Package Contents Return Air Smoke Detector Installation Supply Air Smoke Detector Installation Configuring the
OPERATION MAINTENANCE
Cleaning Procedure Filter Replacement Board Replacement
TROUBLESHOOTING Smoke Entry Tests
• AIRFLOW TEST
• SMOKE RESPONSE TEST
Standby, Alarm and Sensitivity Tests
• STANDBY AND TROUBLE TEST
• ALARM TESTS
• SENSITIVITY TEST
. . . . . . . . . . . . . . . . . . . . . . 1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Comfort
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5,6
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
. . . . . . . . . . . . . . . . . . . . . . . . . 2
. . . . . . . . . . . 2
. . . . . . . . . . 5
Link™ Controller
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
. . . . . . . . . . . . . . . . . . . . . . . . . . . .7,8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
. . . . . . . . 5
. . . . . . . . . . . . . 8
GENERAL
An HVAC (heating, ventilation and air-conditioning) sys­tem supplies conditioned air to virtually every area of a building. Smoke introduced into this air duct system will be distributed throughout the entire building. Smoke detectors designed for use inside the unit are used to sense the presence of smoke passing through the unit.
The smoke detector utilizes photoelectric technology for the detection of smoke. This detection method, when combined with an efficient ducting design, samples air passing through the unit. If sufficient smoke is sensed, an alarm signal is initiat­ed and the ComfortLink controls will shut down the unit. With the unit shut down, the unit will not blow toxic smoke and fire gases throughout the areas served by the duct system.
The return air smoke detector is part number CRSMKDET001C00. The supply air smoke detector is part number CRSMKSUP001A00.
SAFETY CONSIDERATIONS
Installation and servicing of air-conditioning equipment can be hazardous due to system pressure and electrical compo­nents. Only trained and qualified service personnel should install, repair, or service air-conditioning equipment.
Untrained personnel can perform the basic maintenance functions of cleaning coils and filters and replacing filters. All other operations should be performed by trained service per­sonnel. When working on air-conditioning equipment, observe precautions in the literature, tags and labels attached to the unit, and other safety precautions that may apply.
Follow all safety codes. Wear safety glasses and work
gloves. Use care when handling and installing the accessory.
Before performing service or maintenance operations on unit, turn off main power swit ch to unit. Electrical shock could cause personal injury.
The National Fire Protection Association has established that DUCT DETECTORS MUST NOT BE USED AS A SUBSTITUTE FOR OPEN AREA DETECTOR PRO­TECTION as a means of providing life safety. Nor are they a substitute for early warning in a building’s regular fire detection system. Carrier supports this positi on and strongly recommends that the user read NFPA Standards 90A, 72, and 101. This smoke detector is listed per UL 2 68A.
This device will not operate without electrical power.
Fire situations may cause an interruption of power. The system safeguards should be discussed with your local fire protection specialist.
This device will not sense smoke unless the ventilation sys­tem is operating and the cover is installed.
For this detector to function properly, it MUST be installed according to the instructions in this manual. Furthermore, the detector MUST be operated within ALL e lectrical and environmental specifications listed in this manual. Failure to comply with these requirements may prevent the detec­tor from activating when smoke is present in the air duct.
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book 1144 Tab 1a1b6a6b
PC 111 Catalog No. 534-80096 Printed in U.S.A. Form 48/50HG-19SI Pg 1 2-02 Replaces: 48/50HG-17SI
INSTALLATION
When installing the smoke detector in the unit, follow all local codes. Damage to unit may result.
Check Package Contents —
Remove accessory pack­aging and inspect shipment for damage. If any damage is found, file a claim with the shipping agent immediately. If any item is missing or any part does not assemble properly, notify your Carrier distributor.
Tables 1A and B list the accessory package contents.
Figure 1 shows the smoke detector.
Table 1A — Accessory Package Contents —
Return Air Smoke Detector (CRSMKDET001C00)
ITEM QUANTITY Smoke Detector with Cover Sampling Tube (long) Sampling Tube Filters Test Magnet Foam Gaskets Screw, no. 6 Self Tapping Tube End Plug (large) Sampling Tube Support Bracket Screw, 8-18 Screw, Small Snap Bushing Large Snap Bushing Harness Assembly (4-Wires, short) Wire Tie, Screw Mounted
3
/4-in. Pan Head
1
/4AB-14 5/8-in.
1 1 2 1 2 2 1 1 2 2 1 1 1 1
Table 1B — Accessory Package Contents —
Supply Air Smoke Detector (CRSMKSUP001A00)
ITEM QUANTITY
Smoke Detector with Cover Sampling Tube (short) Sampling Tube Filters Test Magnet Foam Gaskets Tube End Plug (small) Screw, 8-18 Small Snap Bushing Harness Assembly (4-Wires, long) Wire Tie, Screw Mounted Wire Tie Screw, no. 8 Self Tapping Screw, no. 10
3
/4-in. Pan Head
1 1 2 1 2 1 2 1 1 5 1 1 2
Return Air Smoke Detector Installation —
The return air smoke detector is to be installed in the predrilled holes located above compressor B1 in the electrical/ compressor section (Fig. 2).
Prior to instal lation of this access ory, make sure all power is disconnected to the unit and locked out. Failure to dis­connect power supply prior to servicing may result in seri­ous injury.
NOTE: For horizontal applications it is easiest to install the smoke detector prior to making duct connections.
1. Open the hinged electrical/compressor access door and secure.
2. Find the 2 plugs located above compressor B1, remove and discard. Cut holes in the insulation located behind the partition.
3. Remove cover from smoke detector. The screws will remain captured in the cover.
4. Place foam gaskets over each sampling tube on smoke detector. (See Fig. 1.)
5. Remove one knockout from top of smoke detector.
6. Insert stripped ends of wire harness through knockout and wire to smoke detector as shown in Fig. 3.
7. Provide strain relief for wires by attaching wire tie to ground screw located next to the knockout in the smoke detector. Ti ghten the wire tie.
8. Slide smoke detector into holes in partition with the terminal block to the right. Do not secure at this time.
9. Slide sampling tube into left-hand hole of smoke detector. It might be necessary to tilt the smoke detector upw ards in order properly align the sampling tube.
10. Remove the unit side panel at the return end of the unit. Save screws for use later.
11. Mount the sampling tube support bracket to the cross member with two
1
/4AB-14 5/8-in. screws as shown
in Fig. 4. Insert large snap bushing into hole in bracket.
12. Slide sampling tube into bracket, making sure that the sampling holes point down. Pull the sampling tube so that it is flush with the smoke detector.
13. Return to Electrical/Compressor section and secure sam­pling tube to smoke detector with two no. 6 self-tapping screws.
3
14. Attach smoke detector to partition using two, 8-18
/4-in.
pan head screws.
Do not overtighten the screws. Damage to smoke detector may result.
15. Return to side panel and insert tube end plug into sampling tube.
16. Replace the unit side panel.
17. Return to Electrical/Compressor section and insert sampling tube filters into both sampling tube holders. (See Fig. 1.)
18. Install the snap bushing in the center knockout under­neath the control terminal strips located in the bottom right-hand corner of the control box.
19. Feed wires through snap bushing and connect to appro­priate terminals as shown in Fig. 3.
20. Restore power to the unit.
21. Configure ComfortLink™ controller as specified in Configuring the ComfortLink Controller on page 5.
22. Perform Standby , Alarm, and Sensitivity Tests on page 7. At a minimum, the Magnet test should be performed t o verify smoke detector wiring.
23. Replace smoke detector cover.
24. Check for alarms. Correct any problems.
2
FOAM
GASKETS
PLASTIC SAMPLING TUBE
PLASTIC SAMPLING TUBE SELF-TAPPING SCREW
DETECTOR BOARD
DETECTOR COVER
CONDUIT HOLES
SAMPLING TUBE FILTERS
Fig. 1 — Smoke Detector
DETECTOR HOUSING
TERMINAL STRIP POWER BOARD
COVER MOUNTING
SCREWS
SMOKE DETECTOR
Fig. 2 — Return Air Smoke Detector Location
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