Armstrong World Industries 242 Transformer *1, Transformer Specifications, VAC Secondary, Primary

Service Reference Manual UNIT COMPONENTS

5-3

Unit Components

This section provides a brief description of the most important compo- nents within the Magic-Pak HW/HWC units. The information presented here is not intended to take the place of the instructions and printed literature packed with each component by the original manufacturer. The section number for each component is listed in parentheses following the component name. This number refers to the section number assigned to each part in the Parts List section beginning on page 8-1.

Transformer (*1)

The transformer supplies 24 VAC from its secondary winding to operate the blower control board, gas valve and ignition control depending on the particular model. Transformers are typically rated at 40 VA, 50/60 Hz.

Transformer Specifications

Manufacturer: Basler Electric

Model: 31264-GEK

Armstrong P/N 39370B001

Primary: 208/240V

Secondary: 24V

Rating: 40VA

Dimensions: 2.28" W x 1.94" H x 3.12" D

Base - 3.25" W (2.81" between I.D. of holes)

.19" x .020" Quick Connect Terminals

24VAC

Secondary

M

CO

240V

208V

208/240 VAC

.188" Diameter Holes

Primary

.25" x .032" Quick Connect Terminals

Note: Secondary leads may exit from top of transformer.

FIGURE 5-1 24-volt Transformer (Typical Configuration)

SRM-HW/HWC 2/99