Bryant Legacy Series Installation, Start-Up And Service Instructions Manual page 16

Air-cooled condensing units with puron r-410a refrigerant
Hide thumbs Also See for Legacy Series:
Table of Contents

Advertisement

DISCONNECT ALL POWER TO UNIT AND CONVE-
NIENCE OUTLET.
Remove the blank cover plate at the convenience outlet; dis-
card the blank cover.
Loosen the two screws at the GFCI duplex outlet, until approx-
imately
1
/
-in. (13 mm) under screw heads are exposed. Press
2
the gasket over the screw heads. Slip the backing plate over the
screw heads at the keyhole slots and align with the gasket;
tighten the two screws until snug (do not overtighten).
Mount the weatherproof cover to the backing plate as shown in
Fig. 16. Remove two slot fillers in the bottom of the cover to
permit service tool cords to exit the cover. Check for full clos-
ing and latching.
COVER - WHILE-IN-USE
WEATHERPROOF
BASEPLATE FOR
GFCI RECEPTACLE
Fig. 16 — Weatherproof Cover Installation
ALL UNITS
Voltage to compressor terminals during operation must be within
voltage range indicated on unit nameplate. See Tables 14-17 (on
pages 18-19). On 3-phase units, voltages between phases must be
balanced within 2% and the current within 10%. Use the formula
shown in the legend for Tables 14-17, Note 4 (see page 19) to de-
termine the percent of voltage imbalance. Operation on improper
line voltage or excessive phase imbalance constitutes abuse and
may cause damage to electrical components. Such operation
would invalidate any applicable Bryant warranty.
FIELD CONTROL WIRING
The 569J unit control voltage is 24 v. See Fig. A-F (on pages
39-44)for typical field control connections and the unit's label
diagram for field-supplied wiring details. Route control wires
to the 569J unit through the opening in unit's end panel to the
connections terminal board in the unit's control box.
Remainder of the system controls connection will vary accord-
ing to the specific construction details of the indoor section (air
handler or packaged fan coil). Figures 17 (569J***A/B) and 18
(569J*D/E/F) depict typical connections to a Bryant 524J fan
coil unit. Plan for field connections carefully and install control
wiring correctly per the project plan. Additional components and
supplemental transformer accessory may be required.
The 569J unit requires an external temperature control device.
This device can be a thermostat (field-supplied) or a thermostat
emulation device provided as part of a third-party Building Man-
agement System.
THERMOSTAT
Install a Bryant-approved accessory thermostat according to
installation instructions included with the accessory. For typi-
cal thermostat connections see Fig. 17 (569J***A/B and
569J*07G/H) and Fig. 18 (569J***D/E/F). Locate the thermo-
stat accessory on a solid wall in the conditioned space to sense
GFCI RECEPTACLE
NOT INCLUDED
GASKET
16
average temperature in accordance with the thermostat installa-
tion instructions.
(Note 3)
(Note 2)
(Note 2)
(Note 1)
Note 1: Connect only if thermostat requires 24-vac power source.
Note 2: Connect W1 and W2 if supplemental heaters are installed
Note 3: Y2 connection for Single Circuit/2-Stage units only
Field Wiring
Fig. 17 — Typical Remote Thermostat Connections –
569J***A/B and 569J*07G/H
(Note 1)
(Note 3)
(Note 3)
(Note 2)
Note 1: Typical multi-function marking. Follow manufacturer's configuration
instructions to select Y2.
Note 2: Connect only if thermostat requires 24-vac power source.
Note 3: Connect W1 and W2 if supplemental heaters are installed
Field Wiring
Fig. 18 — Typical Remote Thermostat Connections –
569J***D/E/F
The 569J***A/B unit is a single-stage cooling unit. If no econ-
omizer function is required, select a single-stage cooling ther-
mostat. If an integrated economizer function is required, select
a two-stage cooling thermostat.
The 569J*07G/H unit is a single circuit, two-stage cooling
unit. Select a two-stage cooling thermostat.

Advertisement

Table of Contents
loading

Table of Contents