Gardall Combination Security Fire & Burglary Chest - Z-3620
Features
- Class “B” Rated interior safe construction. Door of inner safe will interchange with other Gardall safes key lock or combination.
- Fire Resistive Exterior Safe – Insulated to withstand 1850°F for 2 hours.
- Finest Quality Combination Locks – U.L. listed Group II with built-in relocking device or key-op lock.
- Relocking Device – If back cover is knocked off of the lock, the independent relock device is activated, preventing bolt withdrawal.
- Boltwork Interior Door – Triple boltwork with independent relock device.
- Boltwork Exterior Door – Interlocking bolts extend into the safe walls, full length locking bar on hinge side of door to deter forcible entry by removal of hinges.
- Hard plate on exterior door.
- Available with electronic push-button lock.
What our Experts Think
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Dual “Safe-Within-a-Safe” Protection: Features a B-rated inner money chest inside a fire-resistant outer safe — delivering layered security against both theft and fire.
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2-Hour Fire Resistance: Insulated to withstand ~1850°F for up to 2 hours, protecting sensitive documents and valuables in extreme conditions.
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Advanced Anti-Theft Design: Includes interlocking bolts, hard plates, and relocking devices that activate if tampering is detected.
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High-Security Locking: Equipped with UL Group II combination lock (optional electronic lock) for dependable, controlled access.
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Reinforced Dual Doors: Both inner and outer compartments feature independent boltwork systems, enhancing protection against forced entry.
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Large Capacity & Heavy Build: Over 1000 lbs with spacious interior, ideal for securing cash, records, and high-value assets.
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Expert Recommended: A premium choice for businesses needing maximum layered security + fire protection in one unit.
Q&A
Q: What is the Z-4220 Safe designed for?
A: It offers dual protection with a fire-resistant outer safe and a B-rated inner burglary chest—ideal for cash, documents, and valuables.
Q: What fire protection does it provide?
A: It features a 2-hour fire rating up to ~1850°F, keeping interior temperatures safe for paper documents.
Q: What burglary protection features does it have?
A: Includes a Class B-rated inner safe, interlocking boltwork, hard plate protection, hinge-side locking bar, and independent relocking devices.
Q: How is it accessed?
A: Equipped with a UL-listed Group II combination lock, with optional electronic or key lock upgrades.
Q: What are the dimensions and capacity?
A: Exterior: ~49.5″ H × 25.75″ W × 26.75″ D; total capacity ~8.65 cu. ft with separate inner and outer compartments.
Q: Can it be anchored?
A: Yes, it includes a center bolt-down hole with hardware for secure installation.
Maintenance Tips
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Keep in Dry Environment: Place in a cool, low-humidity area to prevent rust and protect fire insulation.
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Clean Gently: Wipe exterior and interior with a soft, dry or slightly damp cloth; avoid harsh or abrasive cleaners.
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Dial Lock Care: Turn the combination dial smoothly and regularly; never force it to avoid internal damage.
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Lubricate Hinges: Apply a small amount of silicone-based lubricant annually for smooth door operation.
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Check Door Seals: Inspect fire-resistant seals for cracks or wear to maintain 2-hour fire protection (up to ~1850°F).
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Control Interior Humidity: Use a dehumidifier or desiccant inside to protect valuables from moisture damage.
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Avoid Overloading: Do not overfill, especially near the door, to ensure proper locking and sealing.
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Test Lock Function: Open and close the safe periodically to ensure bolts and relocking mechanisms work smoothly.
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Professional Service: Contact a certified technician if lock or relocker issues arise.
Damage 
Loss 
Theft 
