IOTA ISD-420-EM-B Series AC Universal Voltage Self Diagnostic Emergency Ballast Instruction Manual

: June 9, 2024
: IOTA

Table of Contents

IOTA ISD-420-EM-B Series AC Universal Voltage Self Diagnostic Emergency
IMPORTANT SAFEGUARDS
INSTALLATION INSTRUCTIONS
OPERATION
TESTING & MAINTENANCE
TYPICAL WIRING DIAGRAMS
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IOTA ISD-420-EM-B Series AC Universal Voltage Self Diagnostic Emergency

Ballast

IOTA-ISD-420-EM-B-Series-AC-Universal-Voltage-Self-Diagnostic-Emergency-
Ballast-PRO

IMPORTANT SAFEGUARDS

When using electrical equipment, basic safety precautions should always be followed, including the following:

READ AND FOLLOW ALL SAFETY INSTRUCTIONS

CAUTION – To prevent electrical shock, do not mate unit connector until installation is complete and A.C. power is supplied to the unit.
CAUTION – This ﬁxture provides more than one power supply output source. To reduce the risk of electrical shock, disconnect both normal and emergency sources by turning off the A.C. branch circuit and by discon-necting the unit connector.
CAUTION – This is a sealed unit. The integral, high temperature Ni-Cad battery is not replaceable. Replace the entire unit when necessary and recycle or dispose of the nickel-cadmium battery properly.
DO NOT USE OUTDOORS. The ISD-420-EM-B is for use with grounded, UL Listed, damp location rated, indoor ﬁxtures. Not for use in heated air outlets or hazardous locations.
The ISD-420-EM-B requires an unswitched A.C. power source of 110-277V 50/60HZ.
Do not mount near gas or electric heaters.
The ISD-420-EM-B should be mounted in locations and at heights where it will not readily be subjected to tampering by unauthorized personnel.
The ISD-420-EM-B is suitable for mounting in the ballast compartment or on top of the ﬁxture. For top mount, order optional mounting kit TMK-80. When used in conjunction with enclosed and gasketed ﬁxtures, the ISD-420-EM-B is suitable for mounting in the ballast compartment only.
The ISD-420-EM-B will cold strike and operate one 10W through 57W 4-pin Rapid Start compact ﬂuorescent lamps. Contact Customer Service for additional lamp usage.
The ISD-420-EM-B is compatible with most electronic A.C. ballasts (including multiple lamps) as follows: Electronic ballasts – one lamp emergency operation.
Suitable for use in damp locations and in enclosed and gasketed ﬁxtures.
For use in 0° C minimum, 50° C maximum ambient temperatures.
The use of accessory equipment not recommended by the manufacturer may cause an unsafe condition, void warranty, and result in non-compliance with UL speciﬁcations.
Do not use this equipment for other than intended use.
Install in accordance with the National Electrical Code and local regulations.
Installation and servicing should be performed by qualiﬁed personnel.
Lighting ﬁxture manufacturers, electricians, and end-users need to ensure product system compatibility before ﬁnal installation.

INSTALLATION INSTRUCTIONS

CAUTION: Before installing, make certain the A.C. power is off and the ISD-420-EM-B unit connector is disconnected.

LAMPS OPERATED
Refer to the chart below for the type of lamp to be operated in the emergency mode.If you have any questions regard-ing speciﬁc lamps, contact Customer Service.

OPTION	LAMP TYPE	EMERGENCY OPERATION	*VIOLET LEADS
1	13W – 32W Compact	One Lamp	Connected
2	42W – 57W Compact	One Lamp	Disconnected

*The 6″ violet leads provide the lamp selection option. The unit is shipped from the factory with the leads disconnected and capped. When used with particular lamp types, violet leads should be connected to one anoth-er. Refer to chart for lamp selection options.

MOUNTING THE ISD-420-EM-B
Mount the ISD-420-EM-B in the ballast channel or enclosed wireway so the wire leads are not exposed, at least ½″ away from the A.C. ballast(s). Refer to Illustration 1. The ISD-420-EM-B may also be mounted on top of the ﬁxture. The optional top mounting kit (Catalog No. TMK-80) may be ordered separately from Customer Service. Refer to Illustration 2.
When battery packs are remote mounted, consult Customer Service for the maximum allowable distance between the battery pack and the lamp.
WIRING
Refer to the wiring diagrams on the back page for the appropriate wiring of lamp(s) and ballast. Install in accordance with the National Electrical Code and local regulations. For additional wiring diagrams consult Customer Service.
INSTALLING THE LIGHTED PUSH BUTTON TEST SWITCH (LPTS)
Select a convenient location on the side of the ﬁxture so that the LPTS can be seen after installation. Allow for proper clearance and drill or punch a 7/8″ (½″ knockout). Push the LPTS housing into the ½″ hole. Connect the leads, observing proper polarity (Red/Black or Red lead w/connector to positive (+) tab). The positive terminal will be indicated by the red mark on the side of the LPTS switch. NOTE: For proper operation, use only the test acces-sories provided with the unit.
WIRING THE A.C. INPUT
- A. The ISD-420-EM-B and A.C. ballast must be on the same branch circuit.
- B. The ISD-420-EM-B requires an unswitched A.C. power source of 110-277V 50/60HZ.
- C. When the ISD-420-EM-B is used with a switched ﬁxture, the A.C. input to the ISD-420-EM-B must be connected ahead of the ﬁxture switch. Refer to Illustration 3 for switched and unswitched ﬁxture wiring diagrams.
LABELS
Attach the appropriate labels adjacent to the LPTS. Annotate Re-lamping label for lamp type and wattage. The Caution and the Re-lamping labels must be on the ﬁxture in a readily visible location to anyone attempting to ser-vice the ﬁxture.
COMPLETING INSTALLATION
When the installation is complete, switch the A.C. power on and join the ISD-420-EM-B unit connector.

OPERATION

Normal Mode – A.C. power is present. The A.C. ballast operates the ﬂuorescent lamp(s) as intended. The ISD-420-EM-B is in the standby charging mode. The LPTS will be lit (green) providing a visual indication that the battery is fully charged and (red) when battery is currently charging.
Emergency Mode – The A.C. power fails. The ISD-420-EM-B senses the A.C. power failure and automatically switches to the Emergency Mode. One lamp is illuminated, at reduced output, for a minimum of 90 minutes. When the A.C. power is restored, the ISD-420-EM-B switches the system back to the Normal Mode and resumes battery charging.

TESTING & MAINTENANCE

Pressing and releasing the LPTS initiates a 30-second test by interrupting power to the designated A.C. ballast and causing the unit to run in emergency mode. The designated emergency lamp is now being lit by the ISD-420-EM-B unit for a 30-second test. After the 30-second test has completed, the ﬁxture returns to normal operation. To simulate a “BLACK OUT” use the circuit breaker to turn off A.C. power to the ﬁxture.

Initial Testing – Allow the unit to charge approximately 1 hour, then conduct a short discharge test. Allow a 72 hour charge before conducting a one hour test.
The ISD-420-EM-B is designed to automatically conduct both 30-second and 90-minute tests at regular intervals every 26 to 28 days. Automatic Testing is outlined in the following schedule:
Automatic Monthly Testing – The ISD-420-EM-B will automatically conduct a 30 second test once. If the ISD-420-EM-B encounters a problem, the LPTS will ﬂash. See Table below for diagnosis.
Automatic Annual Testing – The ISD-420-EM-B will automatically conduct a 90 minute test every twelve months. If the ISD-420-EM-B encounters a problem, the LPTS will ﬂash. See Table below for diagnosis.
To insure accurate testing, the ISD-420-EM-B will not conduct any scheduled automatic tests for a period of 72 hours after the unit has discharged, regardless of reason, for more than ﬁve minutes.
Manual Testing – Manual Testing can be performed on the ISD-420-EM-B at any time, provided the unit is fully charged, by pressing and releasing the LPTS (see above). Manual Testing will not interfere with the automatic testing schedule of the ISD-420-EM-B and will display the same diagnosis indicators as automatic testing.

LED IS RED WHEN CHARGING, GREEN WHEN READY| FAILURE CODES OCCUR ONCE EVERY 15 SECONDS WITH 1 SECOND DELAY BETWEEN CODES IN INSTANCES OF MULTIPLE FAILURE
---|---
CHARGE FAILURE| 1 FLASH
BATTERY FAILURE| 2 FLASHES
LAMP FAILURE| 3 FLASHES
INVERTER FAILURE| 4 FLASHES

SERVICING SHOULD BE PERFORMED BY QUALIFIED PERSONNEL.
Consult Customer Service or visit www.iotaengineering.com for current warranty information.