Bryant TSTATBBN2S01-C Manual de Instalação descarregar pdf (Página 19)

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Features

• Anti-short cycle protection

• High and Low pressure cutouts

• Water Coil freeze protection

• Air Coil freeze protection

• Random Start

• Unit Performance Sentinel

• Over/Under Voltage protection

• Diagnostic LED

• Reset Lockout at unit or disconnect

• Intelligent Reset

• Condensate Overﬂ ow sensor

• Test Mode

• Electric Heat Outputs

• Accessory Water Valve Connection

• Optional LonWorks Control

Field Selectable Inputs

Test Mode - Test Mode allows the service personnel to

check the operation of the control in a timely manner. By

momentarily shorting the test terminals, the CXM control

enters a 20 minute Test Mode period in which all time

delays are sped up 15 times. Upon entering Test Mode, the

Status LED will ﬂ ash a code representing the last fault.

For Diagnostic ease at the thermostat, the alarm relay will

also cycle during test mode. The Alarm relay will cycle

on and off similar to the status LED to indicate a code

representing the last fault, at the thermostat. Test mode can

be exited by shorting the test terminals for 3 seconds.

CXM Control Description

Retry Mode - If the control is attempting a retry of a fault,

the status LED will slow ﬂ ash (slow ﬂ ash = one ﬂ ash every

2 seconds) to indicate the control is in process of retrying.

NOTE: In the following ﬁ eld conﬁ guration options,

jumper wires should be clipped ONLY when power is

removed from the CXM control.

Water Coil Freeze Protection Limit Setting - Jumper

2 (JW3-F12 Low Temp) provides ﬁ eld selection of

temperature limit setting for FP1 to be 30°F or 10°F.

Not Clipped = 30°F. Clipped = 10°F.

Air Coil Freeze Protection Limit Setting - Jumper

3 (JW2-FP2 Low Temp) provides ﬁ eld selection of

temperature limit setting for FP2 to be 30°F or 10°F.

Not Clipped = 30°F. Clipped = 10°F.

Alarm Relay Setting - Jumper 1 (JW1-AL2 Dry) provides

ﬁ eld selection of Alarm Relay terminal AL2 to be

jumpered to 24Vac or to be dry (no connection).

Not Clipped = AL2 connected to R. Clipped = AL2 dry

contacts (no connection).

DIP Switches

Unit Performance Sentinel Disable - Dip Switch 1

provides ﬁ eld selection to disable the UPS feature:

On = Enabled. Off = Disabled.

Stage 2 - Dip Switch 2 provides selection of whether

compressor has an on delay. If set to stage 2, the

compressor will have a 3 second delay before energizing.

Also, if set for stage 2, the alarm relay will NOT cycle

during test mode:

On = Stage 1. Off = Stage 2.

Table 7. LED & Alarm Relay Operations

Special Notes and Examples:

-Slow Flash = 1 ﬂ ash every 2 seconds

-Fast Flash = 2 ﬂ ashes every 1 second

-Flash code 2 = 2 quick ﬂ ashes, 10 sec.

pause, 2 quick ﬂ ashes, 10 sec. pause, etc.

Description of Operation LED Alarm Relay

Normal Mode On Open

Normal Mode with UPS Warning On Cycle (closed 5 sec., Open 25 sec.)

CXM is non-functional Off Open

Fault Retry Slow Flash Open

Lockout Fast Flash Closed

Over/Under Voltage Shutdown Slow Flash Open (Closed after 15 minutes)

Test Mode - No fault in memory Flashing Code 1 Cycling Code 1

Test Mode - HP Fault in memory Flashing Code 2 Cycling Code 2

Test Mode - LP Fault in memory Flashing Code 3 Cycling Code 3

Test Mode - FP1 Fault in memory Flashing Code 4 Cycling Code 4

Test Mode - FP2 Fault in memory Flashing Code 5 Cycling Code 5

Test Mode - CO Fault in memory Flashing Code 6 Cycling Code 6

Test Mode - Over/Under

shutdown in memory

Flashing Code 7 Cycling Code 7

Test Mode - UPS in memory Flashing Code 8 Cycling Code 8

1 2 ... 14 15 16 17 18 19 20 21 22 23 24 ... 31 32

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