Nailor VAV Boxes
Nailor Industries offers precision-engineered VAV terminal units with superior performance, versatile configurations, and advanced control capabilities for optimal zone comfort.
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Popular Models
Technical Specifications
Capacity & Efficiency
Airflow & Pressure
Dimensions
Power Requirements
Common Issues & Solutions
Airflow sensor tubing disconnection
Symptoms:
Erratic airflow readings, poor control response, inaccurate balancing
Solution:
Inspect tubing connections, reattach or replace damaged tubing, verify proper orientation of high/low pressure ports, clean sensor ports with compressed air, check for moisture in tubing.
Control transformer failure
Symptoms:
No response from actuator, controller not powered, communication loss
Solution:
Check input voltage to transformer, verify output voltage, inspect for physical damage or overheating, test fuse if present, replace transformer if output voltage is incorrect.
Hot water valve leakage
Symptoms:
Overheating in cooling mode, inability to maintain setpoint, water hammer noise
Solution:
Inspect valve for physical damage, verify valve fully closes with zero control signal, check actuator operation, look for debris preventing tight closure, replace valve assembly if internal leakage is confirmed.
Cost Information
| Service | Average Cost | Cost Factors |
|---|---|---|
| Rebalancing and recalibration | $200-$450 per box | Testing equipment requirements, documentation needs, adjustment complexity |
| New VAV terminal installation | $2,200-$5,500 | Terminal type and size, reheat options, control package, installation challenges |
| Actuator replacement | $350-$750 | Actuator type (standard, spring return, modulating), control interface, programming requirements |
Frequently Asked Questions
What types of VAV terminals does Nailor manufacture?
Nailor produces a comprehensive range including single-duct VAV terminals, fan-powered terminals (series and parallel), dual-duct terminals, retrofit terminals, induction terminals, and specialized hospital/laboratory models with enhanced filtration and control capabilities.
What makes Nailor's airflow sensor design unique?
Nailor's Flow Star sensor features a multi-point, center-averaging design that provides accurate readings regardless of inlet conditions. The sensor has a 10:1 turndown ratio, requires minimal straight duct runs before the inlet, and maintains accuracy within ±5% even with moderate inlet turbulence.
What insulation options are available for Nailor VAV terminals?
Nailor offers multiple insulation options including standard 1½" thick, 1.5 lb/ft³ density fiberglass with foil facing, fiber-free Solcoustic foam insulation for healthcare applications, double-wall construction with insulation encapsulation, and antimicrobial treatments for improved indoor air quality.
How do Nailor VAV terminals reduce maintenance requirements?
Nailor terminals feature maintenance-free bearings in damper assemblies, removable access panels for easy inspection, slide-out heating coils, quick-connect electrical terminals, easily accessible control enclosures, and industrial-grade components designed for long service life with minimal maintenance.
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