When all wiring is complete and checked, switch ON the AC Power. The Green Led (L1) will come ON indicating AC presence and the AC relay will be energized. Connect Battery observing the correct polarity. For 24VDC use the battery link provided to connect the two (2) 12 Volt Batteries in series. Secure the enclosure with the 4 screws and with the Key Lock provided.
NOTE: For UL603 or UL294 applications use a Tamper Switch (Catalog number HPVM3 available separately), and included enclosure key lock. Connect the tamper switch NC outputs to monitoring device to notify of enclosure tampering.
!WARNING: To reduce risk of electric shock, do not expose unit to rain or excess moisture, and disconnect power before servicing unit.
For continuous protection against hazard, replace fuses only with exact type and rating. A readily accessible switched circuit breaker must be available to disconnect main power as required. All 120V wiring should be routed so that it cannot touch 24V wiring; minimum spacing 3/8” (0.953mm). Installation and servicing should only be made by qualified personnel; contains no
4 LED Indication
LED Number | Power Board (status when lit) |
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L1 | Green LED - AC present |
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L2 | Red LED - PTC activated |
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L3 | Battery low or disconnected |
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L4 | Red LED - DC power failure |
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L5 | Red LED - DC output present |
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LED Number | Distribution Board (staus when lit) |
L1 - L4 | Red LED - Relay enerized |
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L10 | Green LED - FACP alarm activated |
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L11 - L14 | Yellow LED - PTC activated |
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5 Maintenance
This unit should be tested at least once a year to verify correct operation in accordance with the following recommendations;
Output Voltage Test - Voltage output should be tested under normal load conditions to verify correct levels.
Battery Test - Battery should be checked for full charge under normal load conditions. This check should verify correct voltage at both battery terminals and also at the Battery output point on the board to ensure the integrity of all connecting wiring. It is recommended to replace the battery at least every 4 years.
LED Test (Distribution Board only) – Verify yellow LED operation by pushing LED test button. All yellow LED’s should illuminate.
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4 | HP400ULACM4/8CB Installation Document P/N 52898:A 4/05/06 |