QUA/QUZ Standard Open Coil Duct Heaters
QUA/QUZ Standard Open Coil Duct Heaters Overview
ZIRCO distributes INDEECO QUA/QUZ Standard Open Coil Duct Heaters as the official Canada representative. These cost-effective heaters are engineered to meet the vast majority of typical space heating applications, offering an optimal balance of performance, flexibility, and ease of ordering. With models available up to 456 kW, QUA/QUZ heaters are ideal for both light and heavy industrial environments throughout Western Canada.
The QUA series features slip-in heaters for ducts with interior lining (up to 1"), while the QUZ series offers flanged connections for standard duct applications. Both series support fractional dimensions and any duct size between the minimum and maximum ranges, providing flexibility for virtually any standard duct configuration. ZIRCO's quick ship programs ensure fast delivery to meet tight project timelines.
Available with extensive control options and special features including horizontal or vertical airflow configurations, multiple heating stages, and various construction materials. QUA/QUZ heaters represent the most cost-effective solution for common duct heating applications without compromising quality or performance.
Why Choose INDEECO QUA/QUZ Standard Duct Heaters?
Cost-Effective Standard Design
Engineered for typical space heating applications with standard frame sizes to reduce cost while maintaining performance. The ideal solution for budget-conscious projects requiring reliable duct heating.
Quick Ship Availability
Standard and quick ship programs ensure fast delivery across the full QUA/QUZ range to meet tight project timelines. Rapid shipment available for QUA slip-in heaters when you need them fast.
Wide Capacity Range
Models available up to 456 kW with frame sizes from 8" x 6" to 72" x 30" for any scale application. KW ratings limited by frame size and electrical characteristics to ensure optimal performance.
Slip-in and Flanged Options
QUA slip-in heaters for ducts with lining (up to 1") and QUZ flanged heaters for standard duct applications. Both support fractional dimensions for precise fit in existing ductwork.
Versatile Configurations
Horizontal or vertical airflow, multiple heating stages, extensive control options and special features. Available in single or three-phase with balanced three-phase loads on all stages.
Industrial Grade Reliability
Designed for both light and heavy industrial environments with UL/CSA compliance. Built to INDEECO's exacting standards for long-term reliability and dependable performance in demanding applications.
Technical Specifications
QUA vs QUZ Series Comparison
| Feature | QUA (Slip-in) | QUZ (Flanged) |
|---|---|---|
| Installation Type | Slip-in (no flange) | Flanged connection |
| Min Frame Size | 8" wide x 6" high | 8" wide x 6" high |
| Max Frame Size (Option 1) | 48" W x 40" H | 48" W x 38" H |
| Max Frame Size (Option 2) | 72" W x 30" H | 72" W x 28" H |
| Lined Duct Compatibility | Up to 1" interior lining | Not compatible |
| Fractional Sizes | Available (e.g., 24.625" x 17.25") | Available (e.g., 35.75" x 27.75") |
| Shipment | Rapid (standard program) | Standard |
Standard Specifications
| Specification | Details |
|---|---|
| KW Range | Up to 456 kW (limited by frame size and electrical characteristics) |
| Frequency | 50 or 60 Hz |
| Phase Options | Single and three-phase available |
| Heating Stages | Multiple stages available (no stage rated more than 48 amps per UL/NEC) |
| Three-Phase Balance | Each stage has multiple of 3 elements for balanced load |
| Voltage Options | Variety of voltages available |
| Control Circuit | Multiple options and special features available |
Frame Size Options
| Heater Type | Smallest Size | Largest (Option 1) | Largest (Option 2) |
|---|---|---|---|
| QUA Slip-in | 8" W x 6" H | 48" W x 40" H | 72" W x 30" H |
| QUZ Flanged | 8" W x 6" H | 48" W x 38" H | 72" W x 28" H |
Note: Fractional dimensions available. Custom frame sizes available for special applications.
Available Special Features
| Feature | Description |
|---|---|
| Horizontal Airflow | Right or left airflow direction configuration |
| Vertical Airflow | Up (U3) or down (U5) airflow configuration |
| Pressure Plate | 40% open perforated plate for even airflow distribution |
| Protective Screen | Wire mesh screen for one or both sides |
| Stainless Steel Construction | 304 stainless steel frame and terminal box |
| Aluminized Steel Construction | Aluminized steel frame and terminal box |
| Insulated Duct Construction | For ducts with >1" lining (QUA only, up to 6" thick) |
| Unheated Sections | Extended terminal pins up to 6" for unheated sections |
| Negative Pressure Switch | Allows heater installation on inlet side of fan |
| Terminal Box Overhang | Right (horizontal) or downward (vertical) options |
| Insulated Terminal Box | Prevents condensation in unconditioned areas |
| Dust-Tight Terminal Box | For dusty areas and plenum applications |
| Remote Panelboard | NEMA 1 panel with all controls except cutouts |
| Stage On Pilot Lights | Indicator for each heating stage |
| Low Airflow/Heater On Lights | Separate pilot light indicators |
| Fan Relay | For low static pressure applications |
| Electronic Step Controller | Better temperature control for high capacity heaters |
| Low Watt Density Coils | For specific watt density requirements |
| PE Transducer | Built-in transducer for pneumatic control |
| Transformer Fusing | Primary and secondary fusing options |
| Additional Control Circuit | Extra user VA capacity with control terminal block |
| Disconnect Options | Various disconnect and fusing options available |
| Linear Limit Thermal Cutout | Redundant over-temperature protection |
Typical Applications
- Commercial building space heating systems
- Light industrial heating applications
- Heavy industrial environments and manufacturing facilities
- Make-up air systems for ventilation
- Outdoor air heating and tempering
- New construction projects
- Rapid replacement systems for existing duct heaters
- Buildings with standard duct sizes requiring cost-effective solutions
Product Literature & Resources
Technical Documents
QUA/QUZ Standard Open Coil Duct Heaters Catalog (ENM-2077-01)
Complete catalog with specifications, dimensions, and ordering information
QUA/QUZ Technical Specifications (ENM-2083-01)
Detailed technical specifications and performance data
Installation Instructions (ENM-2149-01)
Step-by-step installation guide for QUA/QUZ duct heaters
Dimensional Drawings (ENM-2150-01)
Detailed dimensional drawings for all frame sizes
Control Options (ENM-2151-01)
Available control options and special features guide
Troubleshooting Guide
Comprehensive troubleshooting guide for INDEECO duct heaters
Complete Duct Heater Catalog
Full catalog with all duct heater options, specifications, and applications
Contact for More Information
ZIRCO is the authorized Canada representative for INDEECO QUA/QUZ Standard Open Coil Duct Heaters. Contact our team for:
- Product selection and sizing assistance
- Technical support and application engineering
- Quotations and quick ship delivery information
- After-sales service and support
- Custom duct heater solutions for special applications
- Expertise in both standard and custom configurations
Need Cost-Effective Standard Duct Heating Solutions?
Contact our team today to discuss how INDEECO QUA/QUZ Standard Open Coil Duct Heaters can provide reliable, cost-effective heating for your space heating applications. ZIRCO offers quick ship programs for fast delivery throughout Western Canada, backed by 40+ years of service to the industrial and commercial heating market.