11.8LED Display Alarm Messages

Alarm messages are displayed in the upper LED readout and alternate with the default display. An alarm LED ICON is also illuminated. (See TempTrac User Manual PV500-40 for full description.)

ALARM

CAUSE

RESULTS OF ALARM CONDITION

MESSAGE

 

 

 

 

Inlet temperature sensor is not

“P1”

TP1 probe failure

connected or is reading incorrectly. Call

for heat and burner modulation output

 

 

 

 

signal will revert to low fire.

 

 

 

“P2”

TP2 probe failure

Temperature sensor is not connected

or is reading incorrectly.

 

 

 

 

Temperature sensor is not connected

“P3”

TP3 probe failure

or is reading incorrectly or flue gas

temperature protection is disabled (if

 

 

 

 

used).

 

 

 

“HA”

High temperature limit

Buzzer sounds, operation continues

setpoint exceeded

 

 

“LA”

Low temperature alarm

Buzzer sounds, operation continues

 

 

 

 

Digital input 3 is activated

 

 

for one or more of the

 

HP

following:

Unit de-energized after timer delay

Flame failure or any control

 

component failure, if

 

 

equipped with alarm on any

 

 

failure option

 

LP

Digital input 2 is activated

Unit de-energized after timer delay

 

 

 

Mn1

Maintenance alarm for

Buzzer sounds, operation continues

output 1

 

 

Mn2

Maintenance alarm for

Buzzer sounds, operation continues

output 2

 

 

Mn3

Maintenance alarm for

Buzzer sounds, operation continues

output 3

 

 

“rtc”

The real time clock has lost

Energy saving function disabled

its setting

 

 

RECOMMENDED

ACTION

Check wiring and sensor

Terminals 14 & 17

Check wiring and sensor

Terminals 15 & 17

Check wiring and sensor

Terminals 16 & 17

Manual reset required

Manually reset required

Manually reset required

Check wiring and sensor

Check wiring and sensor

Check wiring and sensor

Reprogram clock

12

REMOTE CONNECTIONS – TERMINAL STRIP

 

 

 

 

12.1

Making BMS/BAS remote connections for analog and binary (on/off) signals

 

A terminal strip for the remote connection is located behind the hinged control panel at the top of the cabinet and is

 

accessed by removing the bottom cover and then removing the screws at the top of the hinged cover.

 

Important: Do not use single strand bell wire for remote field connections to terminals R1-R2 and C1-C2. Use only

 

multi-strand copper wire. See table below for wire length and gauge:

 

 

 

 

 

 

 

 

 

 

 

 

Wire Gauge

18 GA

16GA

14 GA

12 GA

 

 

 

 

 

 

 

 

 

 

 

Maximum Length

30 FT

50 FT

75 FT

100 FT

 

 

 

 

 

 

 

 

 

WARNING: Turn off all electrical service to the appliance when accessing the remote connections located inside the control cabinet. These terminals are High Voltage. If the electrical service is not turned off and these terminals are touched, a dangerous shock causing personal injury or loss of life could occur. Close and fasten the control cabinet cover before restoring electrical service to the appliance.

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PV500-45C 06/12

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Image 25
PVI Industries PV500-45C LED Display Alarm Messages, Alarm Cause Results of Alarm Condition Message, Recommended Action

PV500-45C specifications

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