Applications manual | 11.2007Bosch Water Heating
Applications manual
| 43
5.2.1 Baseboard/Radiant Panel space heating and DHW electrical diagram
The following shows the appropriate electrical connections for plumbing diagram 5.2.1
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 # EID BBOL
CN revA 10/07
Indirect Baseboard/Radiant Panel Space Heating and DHW
Electrical Diagram
PK
L N
P0
LL
PS
N L
PE
Terminal box
110VAC from outlet
PK
ESR control
board
NPZCHX
1 ZR
X2
ZONE1 ZONE2 ZONE3
ZONE1 ZONE2 ZONE3
FUSE 1 AMP
24 VAC
POWER
THREE ZONE SWITCHING RELAY
WITH OPTIONAL PRIORITY
SR 503
or equivalent
120Vac
Neutral
P1
T
Stat
AQUASTAT
TT
LR LS
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