Bryant EVOLUTION 577D----A - Manual (Page 24)

24
Table 3 – Air Delivery and Temperature Rise at Rated Heating Input
Unit
Rated Heating Input (Btu/hr) Heating Rise Range o F ( o C) Heating Rise Either Stage, °F ( o C)
High Stage Low Stage High Stage Low Stage
“Efficiency” “Comfort”
High Stage Low Stage High Stage Low Stage
577DNWA24040
577DNWA30040
40,000 26,000
20 --- 50
(11---28)
15---45
(8---25)
35
(19)
30
(17)
40
(22)
35
(19)
577DNWA30060
577DNWA36060
577DNWA42060
60,000 39,000
25 --- 55
(14---31)
25 --- 55
(14---31)
40
(22)
50
(28)
577DNWA36090
577DNWA42090
577DNWA48090
577DNWA60090
90,000 58,500
35 --- 65
(19---36)
35 --- 65
(19---36)
50
(28)
55
(31)
577DNWA48115
577DNWA60115
115,000 75,000
30 --- 60
(17---33)
30 --- 60
(17---33)
45
(25)
50
(28)
577DNWA48130
577DNWA60130
130,000 84,500
35 --- 65
(19---36)
35 --- 65
(19---36)
50
(28)
55
(31)
Airflow delivery values for external static pressure values of up to 1 IN. W.C.
Table 4 – Heat Pump/Air Conditioner Board Status Codes
OPERATION FAULT
AMBER LED
FLASH
CODE
POSSIBLE CAUSE AND ACTION
Standby – no call for unit operation None
On solid, no
flash
Normal operation.
Emergency Mode
Standard Thermo-
stat Control
Rapid, con-
tinuous
flashing
Unit being controlled by standard thermostat inputs instead of Evolution
Control. Only high stage operation is available. This operating mode
should be used in emergency situations only.
Low Stage Cool/Heat Operation None 1, pause Normal operation.
High Stage Cool/Heat Operation None 2, pause Normal operation.
System Communica-
tions Failure
16
Communication with UI lost. Check wiring to UI, indoor and outdoor units.
Invalid Model Plug 25
Control does not detect a model plug or detects an invalid model plug. Unit
will not operate without correct model plug.
High---Pressure
Switch Open
31
High---pressure switch trip. Check refrigerant charge, outdoor fan operation
and coils for airflow restrictions.
Low---Pressure
Switch Open
32 Low---pressure switch trip. Check refrigerant charge and indoor air flow.
Control Fault 45 Outdoor unit control board has failed. Control board needs to be replaced.
Brown Out (230 v) 46
Line voltage < 187v for at least 4 seconds. Compressor and fan operation
not allowed until voltage>190v. Verify line voltage.
No 230v at Unit 47
There is no 230v at the contactor when indoor unit is powered and cooling/
heating demand exists. Verify the disconnect is closed and 230v wiring is
connected to the unit.
Outdoor Air Temp
Sensor Fault
53
Outdoor air sensor not reading or out of range. Ohm out sensor and check
wiring.
Outdoor Coil Sensor
Fault
55 Coil sensor not reading or out of range. Ohm out sensor and check wiring.
Thermistors Out of
Range
56
Improper relationship between coil sensor and outdoor air sensor. Ohm out
sensors and check wiring.
Low Stage Thermal
Cutout
71
Compressor voltage sensed, then disappears while cooling or heating de-
mand exists. Possible causes are internal compressor overload trip or start
relay not releasing (if installed).
High Stage Thermal
Cutout
72
Compressor voltage sensed, then disappears while cooling or heating de-
mand exists. Possible causes are internal compressor overload trip or start
relay not releasing (if installed).
Contactor Shorted 73
Compressor voltage sensed when no demand for compressor operation
exists. Contactor may be stuck closed or there is a wiring error.
No 230V at Com-
pressor
74
Compressor voltage not sensed when compressor should be starting. Con-
tactor may be stuck open or there is a wiring error.
Low Stage Thermal
Lockout
81
Thermal cutout occurs in three consecutive low/ high stage cycles. Low
stage locked out for 4 hours or until 24v power recycled.
High Stage Thermal
Lockout
82
Thermal cutout occurs in three consecutive high/low stage cycles. High
stage locked out for 4 hours or until 24v power recycled.
Low---Pressure Lock-
out
83
Low---pressure switch trip has occurred during 3 consecutive cycles. Unit
operation locked out for 4 hours or until 24v power recycled.
High---Pressure
Lockout
84
High---pressure switch trip has occurred during 3 consecutive cycles. Unit
operation locked out for 4 hours or until 24v power recycled.
577D
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