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TABLE 5
ELECTRIC HEAT SECTION FUSE RATING
EHA QUANTITY
& SIZE
VOLTAGES
FUSE (3 each)
F3 - 1 F3 - 2 F3 - 3 F3 - 4 F3 - 5 F3 - 6 F3 - 7 F3 - 8
(1) EHA240-7.5 &
(1) EHA240S-7.5
(15 kW Total)
208/230V
50 Amp
250V
----- ----- ----- ----- ----- ----- -----
460V
25 Amp
600V
----- ----- ----- ----- ----- ----- -----
575V
20 Amp
600V
----- ----- ----- ----- ----- ----- -----
(1) EHA360-15 &
(1) EHA360S-15
(30 kW Total)
or
(1) EHA156-15 &
(1) EHA156S-15
208/230V
60 Amp
250V
60 Amp
250V
----- ----- ----- ----- ----- -----
460V
50 Amp
600V
----- ----- ----- ----- ----- ----- -----
575V
40 Amp
600V
----- ----- ----- ----- ----- ----- -----
(2) EHA360-22.5
(45 kW Total)
or
(2) EHA156-22.5
208/230V
50 Amp
250V
----- -----
25 Amp
250V
50 Amp
250V
----- -----
25 Amp
250V
460V
25 Amp
600V
----- -----
15 Amp
600V
25 Amp
600V
----- -----
15 Amp
600V
575V
20 Amp
600V
----- -----
10 Amp
600V
20 Amp
600V
----- -----
10 Amp
600V
(2) EHA150-30
(60 kW Total)
or
(2) EHA156-30
208/230V
50 Amp
250V
----- -----
50 Amp
250V
50 Amp
250V
----- -----
50 Amp
250V
460V
25 Amp
600V
----- -----
25 Amp
600V
25 Amp
600V
----- -----
25 Amp
600V
575V
20 Amp
600V
----- -----
20 Amp
600V
20 Amp
600V
----- -----
20 Amp
600V
(2) EHA360-45
(90 kW Total)
208/230V
50 Amp
250V
-----
60 Amp
250V
60 Amp
250V
50 Amp
250V
-----
60 Amp
250V
60 Amp
250V
460V
25 Amp
600V
----- -----
50 Amp
600V
25 Amp
600V
----- -----
50 Amp
600V
575V
20 Amp
600V
----- -----
40 Amp
600V
20 Amp
600V
----- -----
40 Amp
600V
II-PLACEMENT AND INSTALLATION
Make sure the unit is installed in accordance with the in-
stallation instructions and all applicable codes. See ac-
cessories section for conditions requiring use of the op-
tional roof mounting frame.
III-CHARGING
A-Refrigerant Charge and Check - Fin/Tube Coil-
WARNING-Do not exceed nameplate charge under
any condition.
This unit is factory charged and should require no further
reclaim the charge, evacuate the system, and add re-
quired nameplate charge.
NOTE - System charging is not recommended below 60F,
In temperatures below 60F, the charge must be weighed
into the system.
IMPORTANT - Charge unit in normal cooling mode.
1 - Attach gauge manifolds to discharge and suction
unit in cooling mode at high speed using the
SERVICE>TEST>COOL>COOL 3
2 - Use a thermometer to accurately measure the
outdoor ambient temperature.
3 -
determine normal operating pressures. Pressures
4 - Compare the normal operating pressures to
the pressures obtained from the gauges. Minor
could mean that the system is not properly charged
the system. Correct any system problems before
proceeding.
5 -
refrigerant to the system.
• Add or remove charge in increments.
• Allow the system to stabilize each time refrigerant is
added or removed.
Use the following approach method along with the
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