Csd-1 Manifold Assembly (Supplied) - Watts AERCO Modulex EXT Series Technical Application Manual

Modulating and condensing boilers

Hide thumbs Also See for AERCO Modulex EXT Series:

Table of Contents

Modulex EXT Series Piping

CSD-1 MANIFOLD ASSEMBLY (SUPPLIED)

SECTION 4: CSD-1 MANIFOLD ASSEMBLY (SUPPLIED)

The installation of a flow switch, pressure/temperature gauge, and an ASME compliant safety pressure

relief valve designed for the boiler output capacity is required. These major components are supplied with

the boiler and must be assembled and wired when installing the boiler at the site. The manifold assembly

components supplied are:

• Pressure Relief Valve (3/4" for EXT 450 2S – 1100 2S, 1-1/2" for EXT 1500 2S – 3000 2S)

• Flow Switch

• Pressure/Temperature Gauge

NOTE: Units ship with an 80 psi relief valve. For higher or lower system pressure, a different rated relief

valve must be field supplied.

Full instructions for installing these components are included in the Modulex EXT Installation, Operation &

Maintenance Guides.

Figure 5: Input/Output Box and Flow Switch Connection

TAG-0099

Application Guide

AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913

Phone: 800-526-0288

Page 19 of 37

10.07.2021

Table of Contents