STjh three-row half-inch hot-water heating coil with three tube rows and medium-depth casing on white.

STJH-HOT-WATER-HEATING-COIL-3ROW-12IN

Hot-Water Heating Coil Three-Row 1/2-Inch

A medium-depth half-inch-tube coil balancing water flow, heat-transfer area and air-side resistance.

Three-row heat-transfer depth
1/2 in copper tubes
0.017 in standard tube wall

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Product Introduction

The three-row core increases heat-transfer depth beyond the compact two-row model and uses 1/2 in tubes with a 0.017 in standard wall. Larger tubes support more water flow and lower circuit velocity for a given duty. This version is intended for medium AHU heating loads where a four-row large-tube coil would add unnecessary casing depth and air resistance.

Key Features

Balanced core depth

Three rows add surface area without the full footprint of a high-output four-row assembly.

Moderate water capacity

Half-inch tubing supports practical water flow and circuit layouts for central AHUs.

Aluminum fin surface

Closely bonded fins transfer tube heat to the clean supply airstream.

Technical Parameters

Tube Rows	3
Tube Outside Diameter	1/2 in
Standard Tube Wall	0.017 in
Tube Material	Copper
Fin Material	Aluminum
Casing	Galvanized or stainless by selection
Fluid	Hot water
Circuiting	Rated to required water flow
Primary Duty	Medium AHU heating
Customization	Available based on the intended application and operating environment.

Applications

For pharmaceutical, electronics and controlled-production AHUs requiring medium hot-water heating capacity.

Solutions for Your Application

Uneven water distribution leaves part of the three-row face cold.Select header and circuit arrangement for balanced velocity and vent the coil at its installed orientation.

Fin density raises air pressure drop beyond the supply fan allowance.Rate the coil at the actual face velocity and choose fin spacing that balances heat output with fan energy.

Available Options

Specify face dimensions, tube wall, fin spacing, casing alloy, circuiting, connections, coating and drain or vent fittings.

Planning a Hot-Water Heating Coil Three-Row 1/2-Inch specification?

Send us your dimensions, installation conditions, performance targets and required surface finish.

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