Bosch Gas-Fired Condensing Boilers User manual

Brand: Bosch

Model: Gas-Fired Condensing Boilers

Type: User manual

Singular BTC 439003303 A | 03.2022

Manifold Installation

Bosch Thermotechnology Corp.

1of 1

www.bosch-thermotechnology.us | Tel: 866-642-3198 | Fax: 603-965-7581

WARNING:

The instructions described below must be performed by

qualiﬁ ed personnel.

Product Information

For use with Singular Series Boilers only.

Provides 1”NPT boiler connections and 1.25”sweat system connections.

Isolation valves enable the boiler to be isolated from the heating system for

maintenance.

Part number: 7738007396

Figure 1

Installation Instructions

1. Mount the boiler to the wall following the instructions found in the boiler

Installation Manual.

2. Remove the dielectric union on the manifold and secure them to the supply

and return on the boiler.

3. Pre ﬁ t all DHW piping to verify it will ﬁ t properly behind the manifold.

4. Mount the rest of the manifold to the boiler and connect rest of the piping.

Ensure manifold and piping are properly supported.

Figure 2

1. Manifold

2. Boiler/ System Supply side

3. Boiler/ System Return Side

4. Isolation Valves

5. Dielectric Unions

6. Service Drain Ports

7. PRV Connection (PRV Not Included with Manifold)

BTC 439003303 A | 03.2022 Singular

Manifold Installation

www.bosch-thermotechnology.us | Tel: 866-642-3198 | Fax: 603-965-7581

2of 2

Product Dimensions

Figure 3

1" DIELECTRIC

UNION (QTY.2)

1" COMBO DRAIN &

BALL VALVE (QTY.2)

1-1/4" CTS COPPER

12.40 [314.96]

(45°)

(45°) (45°)

2.50 [63.50]

3/4" FNPT

14.00

[355.60]

10.20

[258.97]

5.00

[127.00]

14.00 [355.60]

Dimensions in inches [mm]

Bosch Gas-Fired Condensing Boilers User manual

Bosch Gas-Fired Condensing Boilers User manual

Bosch Gas-Fired Condensing Boilers User manual

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