Nordyne E2EB 010H, Service Manual

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5 E2 Service Manual
NOTE: See Table 2 for descriptions and notes
Figure 1. Optional Accessories
Upflow Stand
29” (737 mm)
23 3/4”
(603 mm)
20” (508 mm)
20” (508 mm)
Cabinet
Insulation
23 3/4” (603 mm)
Coil Cabinet 5
14” (357 mm)
6
Filters (one obtained
from furnace)
23 3/4”
(603 mm)
20”
(508 mm)
27” (686 mm)
29” (737 mm)
1
2
3
4
7
8
Sequence of operation
With the circuit breakers in the on position and the
blower switch in the auto position. One half of the
control heating element and motor electrical circuit is
activated. When the contacts close in the wall
thermostat 24 volts is supplied by the 240/24 volt
transformer to the sequencer heater. This heats a bi -
metal in the sequencer which closes a set of contacts
and completes the circuit to the no.1 element and the
blower motor. As the heater continues to build up heat,
the bi-metal closes the remaining circuits to other
elements, until all elements are on. The “off” cycle is
reverse of the “on” cycle the blower and no.1 element
are first on and the last to be de-energized.
Table 2. Optional Air Conditioning and
Heat Pump Equipment
Item
Number
(See Fig. 1)
Description
1 4-Speed Blower
4 Ton - See Notes: 1 & 5
5 Ton - See Note: 1
2 A.C./H.P. Relay Control Box
(not req’d on E2EB models)
See Note: 1
3 Cabinet Insulation Kit
See Notes: 1 & 5
4 "A"-Coil Conversion Kit
See Note: 2
5 Coil Cabinet
See Note: 3
6 Upflow Stand
See Note: 4
7 A/C and H/P Indoor Coils
8 Return Air Grille and Frame
Assembly
Notes:
1) For A/C and H/P use.
2) Includes coil filters.
3) For upflow or downflow installations.
4) For upflow A/C or H/P installations (includes
one filter; use filter from furnace to complete
filtering system in this accessory).
5) Standard in EB models.