Bryant 607C-A installation instructions Configuration, Economizer Standard Sensors

Filter

Clips

Aluminum

Filter

A09704

Fig. 36 - Filter Installation (See through view)

Top filter

rack

Evaporator Coil

CONFIGURATION

Economizer Standard Sensors

OUTDOOR AIR TEMPERATURE (OAT) SENSOR— The outdoor air temperature sensor (HH57AC080) is a 10 to 20mA device used to measure the outdoor-air temperature. The outdoor-air temperature is used to determine when the Economizer can be used for free cooling. The operating range of temperature measurement is

40to 100_F (4.4 to 37.8_C). The sensor has 8 selectable temperature changeover setpoints. The temperature changeover is set using 3 dip switches on the sensor. The ABCD potentiometer on the controller should be set to the “D” position. See Fig. 40.

SUPPLY AIR TEMPERATURE (SAT) SENSOR—The supply
air temperature sensor is a 3 KΩ thermistor located at the inlet of the
indoor fan. See Fig. 38. The operating range of temperature
measurement is 0_ to 158_F (-17.8_to 70_C). See Table 15 for
sensor temperature/resistance values. The temperature sensor looks
			A
like an eyelet terminal with wires running to it. The sensor is located			--
			--
in the “crimp end” and is sealed from moisture.
			607C
Table 15 – Supply Air Sensor Temperature/Resistance Values
TEMPERATURE	CELSIUS (_C)	RESISTANCE (OHMS)
(_F)
---22	---30	53,010
---4	---20	29,091
14	---10	16,590
32	0	9,795
50	10	5,970
68	20	3,747
77	25	3,000
86	30	2,416
104	40	1,597

Screw

(Note 4 and 5)

Bottom filter rack

RIGHT SIDE

122	50	1,080
140	60	746
158	70	525

Supply Air Temperature

Sensor (SAT)

BENT COIL

Top filter rack

Evaporator

Coil

Bottom filter rack

STRAIGHT COIL

A09714

Fig. 37 - Indoor Coil with Filter Rack

Indoor

Blower

A09707

Fig. 38 - SAT Location

37