STjh four-row five-eighth-inch hot-water heating coil with a deep tube bank and large header on white.

STJH-HOT-WATER-HEATING-COIL-4ROW-58IN

Hot-Water Heating Coil Four-Row 5/8-Inch

A deep large-tube heating core for high water flow and winter warm-up loads in central clean facility AHUs.

Four-row high-output core
5/8 in tube diameter
6-14 fins per inch

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Product Introduction

This four-row heating coil uses 5/8 in tubing on a 1.5 x 1.299 in tube pattern and supports 6-14 fins per inch. The deeper bank and larger headers provide more heat-transfer area and water capacity than the two smaller models. It is suited to high-output clean-facility heating where the air handler can accommodate the greater core depth and rated air-side pressure loss.

Key Features

High water-flow capability

Larger tubes and headers support central-plant flow with manageable tube velocity.

Expanded heating surface

Four rows and selectable fin density provide more area for low-temperature hot-water systems.

Robust large-core layout

The 1.5 x 1.299 in tube pattern supports a physically deeper coil for substantial AHU duty.

Technical Parameters

Tube Rows	4
Tube Outside Diameter	5/8 in
Standard Tube Wall	0.020 in
Tube Pattern	1.5 x 1.299 in
Fin Density	6-14 fins per inch
Fin Material	Aluminum
Fluid	Hot water
Casing	Galvanized or stainless steel by duty
Primary Duty	High-capacity heating and warm-up
Customization	Available based on the intended application and operating environment.

Applications

For large clean manufacturing AHUs, winter warm-up sections and low-temperature hot-water systems requiring substantial heating surface.

Solutions for Your Application

The four-row coil increases air resistance and reduces cleanroom supply volume.Select face area and fin spacing from the fan curve, not solely from heating capacity.

A large core traps air or drains poorly during shutdown.Locate vents and drains at the actual installed orientation and pitch piping to avoid stagnant pockets.

Available Options

Confirm capacity, face size, water temperatures, tube wall, fin density, circuit layout, connection hand, coating and casing alloy.

Planning a Hot-Water Heating Coil Four-Row 5/8-Inch specification?

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

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