American Standard PFWF071A93ABA, Руководство по установке

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18-CG03D1-4
50
CONNECTION TO ELECTRICAL GRID
The boiler must be connected to single-phase, 120
Volt-60 Hz electric service.
CONTROL BOX ACCESS
To access the electrical components and high and low
voltage terminal strip inside the control box, follow the
sequence in Figure 65.
The layout of the terminals for the various connections
is given in the wiring diagrams and schematic on
pages 47 and 48.
NOTE: Do not use gas or water pipes to
ground electrical appliances.
Remove two screws and two attachment clips (2) to access
control box.
Control panel and cover
removal
1. Remove the front access panel.
2. Remove top boiler panel.
3. Remove screw from attachment
clip.
4. Lower the control panel.
Boiler Top Panel
Screw
Control
Panel
Cover
Attachment
Clip
Figure 65
3.11 Electrical Connections
Important: All aspects of the installation of this boiler,
including electrical materials and methods of supplying
electrical power must comply with all local codes and the
following national standards:
1) NFPA 70 (most recent edition) - National Electrical Code
(US)
2) CSA 22.1 (most recent edition) - Canadian Electical
Code (Canada)
Make wiring connections to the boiler as indicated in the
Installer’s Guide wiring diagrams. As with all appliances
using electrical power, this boiler shall be connected into a
permanently live electric circuit. It is recommended that
it be provided with a separate “circuit protection device”
electric circuit. The boiler must be electrically grounded in
accordance with local codes; or in the absence of local codes,
with the National Electrical Code, ANSI/NFPA 70 “latest
edition” or Canadian Electrical Code, CSA C22.1.
All fi eld supplied wiring must conform with the tempera-
ture limitation for Type T wire [63° F. (35° C)] installed in
accordance with these instructions and wiring diagrams
supplied with the boiler. A disconnecting means must be
located within sight from, and readily accessible to, the
boiler.