Installation
20
OAU-SVX005C-EN
Field Installed Power Wiring
An overall dimensional layout for the standard field
installed wiring entrance into the unit is illustrated in
and
. To ensure that the unit’s supply
power wiring is properly sized and installed, refer to the
following guidelines.
Note:
All field installed wiring must conform to NEC
guidelines as well as State and Local codes.
Verify that the power supply available is compatible with
the unit’s nameplate ratings. The available supply power
must be within 10 percent of the rated voltage stamped on
the nameplate. Use only copper conductors to connect the
power supply to the unit.
WARNING
Proper Field Wiring and Grounding
Required!
Failure to follow code could result in death or serious
injury. All field wiring MUST be performed by qualified
personnel. Improperly installed and grounded field
wiring poses FIRE and ELECTROCUTION hazards. To
avoid these hazards, you MUST follow requirements for
field wiring installation and grounding as described in
NEC and your local/state electrical codes.
AVERTISSEMENT
Câblage sur site et mise à la terre corrects
nécessaires!
Le non-respect de la réglementation peut entraîner des
blessures graves, voire mortelles. Il est IMPÉRATIF de
confier l’ensemble du câblage sur site à un électricien
qualifié. Un câblage sur site mal installé ou mal mis à la
terre constitue des risques D’INCENDIE et
D’ÉLECTROCUTION. Pour éviter ces risques, il est
IMPÉRATIF de respecter les obligations en matière de
pose de câblage sur site et de mise à la terre tel que
stipulé dans les règles du NEC et dans les
réglementations électriques locales/nationales.
Figure 10.
OAB utility connections (in.)
ELECTRIC
DISCONNECT
SWITCH
GAS INLET
1.25 IN. MPT
CONDENSATE
DRAIN
0.5 IN. FPT
18.051
118.701
10.672
6.854
62.203
7.024
22.002
6.901
54.179
Figure 11.
OAG utility connections (in.)
Table 2.
OAB/OAG unit
Maximum MBh Burner Size (in.)
Pipe Connection (in.)
300
6
1
660
12
1
814
18
1-1/4
121.371
66.096
ELECTRIC
DISCONNECT
SWITCH
THROUGH BASE
ELECTRIC
74.000
17.323
33.751
121
3.078
GAS INLET
5.5852
6.000
62.268
5.044
HEIGHT OF INLET
TO BASE