Gas-Fired Condensing Boilers

Bosch Gas-Fired Condensing Boilers User manual

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Singular BTC 439003303 A | 03.2022
Manifold Installation
Bosch Thermotechnology Corp.
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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
5
32
4
67
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
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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]
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