Applications manual | 33 |
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5.1.1 Radiant space heating and DHW electrical diagram
The following shows the appropriate electrical connections for plumbing diagram 5.1.1
Terminal box
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| PK |
| P0 |
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| PS |
| PE |
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L N |
| LL |
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| N L |
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PS
110VAC from outlet
ESR control
board
T | T |
Stat | Stat |
24 VAC |
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POWER |
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| SR 502 |
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| ZONE1 | ZONE2 |
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| TWO ZONE SWITCHING RELAY | |||
| FUSE 1 AMP |
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N | P | ZC | H | X1 | X2 | ZONE1 | ZONE2 |
ZR | |||||||
Neutral
120Vac
PCB
P1 P2
Radiant Space Heating and DHW
Electrical Diagram
Note: This drawing is conceptual in nature and does not address all design, installation or safety considerations.
Additional safety and/or auxiliary equipment may be needed. This diagram is for reference use by officials, designers and licensed installers.
It is expected that installers have adequate knowledge of accepted industry practices for the equipment, procedures, and applications involved. Drawing is not to scale.
Drawing # EROL
CN revA 10/07
Bosch Water Heating | Applications manual 11.2007 |