Bryant 559B - Manual (Page 10)

TABLE I—HEATER DATA & USAGE
Heater Bryant
Voltage-
Hertz- Btuh Output Size Unit
Model No. P/N KW* Phase 208V 230V 240V 480V Used With
88EA0050CA00 7O181D01 5 240-60-1 — 15,673 17,065
— 024, 030, & 036
88EA0075CAOO 7O181D02 7.5 240-60-1
— 23,509 25,598 — 024 thru 048
88EA0100CA00 7O181D03 10 240-60-1 — 31,345 34,130
—
024 thru 048
88EA0150CA00t 7O181D04 15 240-60-1 _ 47,018 51,195 — 030 thru 048
88EA12O0CAOOt 7O181D05 20 240-60-1 — 62,690 68,260 — 042 & 048
88EA1250CA00t 70181D06 25 240-60-1
—
78,363 85,325
—
,042 & 048
88EA1250LA00t 7O181D08 25 208-60-3 85,325 — — — 042 & 048
88EA0075EA00 7O181D01O 5.6/7.5 208/240-60-3 19,227 23,509 25,598 — 030 thru 048
88EA0100EAOO 7O181D011 7.5/10 208/240-60-3 25,635 31,345 34,130 — 030 thru 048
88EA0145EA00 7O181D012 10.9/14.5 208/240-60-3 37,171 45,450 49,489 — 030 thru 048
88EA1198EAOOt 7O181D013 14.9/19.8 208/240-60-3 50,758 62,063 67,577 — 042 & 048
88EA1250EA00t 7O181D014 18.75/25 208/240-60-3 64,089 78,363 85,325 — 042 & 048
88EA0160FA00 7O181D016 10 480-60-3 — — — 34,130 048
88EA1200FA00t 7O181D018 20 480-60-3
— - —
68,260 048
*At rated voltage.
tThese heaters are wired for two-stage heating. Remaining heaters are wired for single-stage heating.
NOTE:
The 18.75/25- and 25-KW heaters must be field-connected for two-stage operation. All other heaters wired for two-stage heating
may be field-connected for single- or two-stage operation.
TABLE II—HEATER ELECTRICAL DATA
KW
Voltage-
Hertz-
Phase-
Branch Circuit
No. of
Circuits
FLA
(each)
Wire
Size*
(AWG No.)
Max Wire
Length
(ft)**
Fuse
Amps
5t 240-60-1 1 20.8 10 45 30
7.5t 240-60-1 1 31.2 8 45 40
lot 240-60-1 1 41.7 6 55 50
15t 240-60-1 2 41.7 6 55 50
20.8 10 45 30
20 240-60-1 2 41.7 6 55 50
41.7 6 55 50
25 240-60-1 3 41.7 6 55 50
41.7 6 55 50
20.8 10 45 30
25 208-60-3 2 34.7 6 55 45
34.7 6 55 45
5.6/7.5t 208/240-60-3 1 15.6/18.0 12/10 49/49 20/25
7.5/1 Ot 208/240-60-3 1 ■ 20.8/24.0 10/10 59/59 30/30
10.9/14.5t 208/240-60-3 1 30.2/34.9 8/6 63/63 40/45
14.9/19.8 208/240-60-3 1 41.3/47.6 6/4 46/73 60/60
18.75/25 208/240-60-3 2 26.0/30.1 8/8 47/47 35/40
26.0/30.1 8/8 47/47 35/40
lot 480-60-3 1 12.0 14 59 15
20 480-60-3 1 24.0 10 74 30
tThese heaters are internally installed. All others are externally installed.
*Based on 60°C copper wire. If other than 60°C copper conductor is used, determine size from unit ampacity and the
National Electrical Code. Voltage drop of wire must be less than 2% of unit rated voltage.
**Length shown is for one way along the wire path from unit to service panel for minimum voltage drop.
B. Control Wiring (24V)
Between Heater and 559B
A low-voltage control-wiring plug is provided on the heater
for connection to the receptacle in the 559B control-wiring
terminal box.
On internal heater installations, extend the control-wiring
plug through the hole provided in the 559B control-wiring
terminal box and connect to the receptacle. On external
heaters, feed the plug through the control-wiring hole
provided in the heater cabinet (Figures 2 and 6) and into
the 559B. Extend the plug into the 559B control-wiring ter­
minal box and connect the plug to the receptacle.
NOTE: When heater installation is completed, be sure to
seal holes around all electrical openings to prevent air
leakage.
C. Thermostat leads
The thermostat leads are brought through the grommeted
hole, provided in the 559B, into the control-wiring terminal
box. Connect the thermostat leads to the low-voltage
pigtails. See Figure 8 or 9 for thermostat connection
diagrams. Tape unused pigtails separately. When
aluminum field wire is used, lubricate splices with a
suitable splice compound, and use approved copper-to-
aluminum splice connectors. Set the thermostat heat an­
ticipator as described in “Determining Heat Anticipator
Setting”, Section V.
IV. SERVICE
A. Limit Switch
The limit switch provides overtemperature protection. A
switch malfunction prevents the heating elements from
being energized. Replace the limit switch if a malfunction
occurs.
B. Time-Delay Relay
The 14.9- through 25-KW heaters are sequenced. The time-
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