Bryant 580J*04--12 Installationshandbuch PDF herunterladen (Seite 16)

Power Exhaust Test

This point allows the board’s power exhaust (PE) output

to be manually turned On (Enable) and Off (Disable).

Power Exhaust test can operate simultaneously with other

Service Test Points.

Economizer Test

This point allows the board’s economizer output to be

manually controlled from 0 to 100 % Open. Economizer test

can operate simultaneously with other Service Test Points.

VFD Speed Test

This point activates the board’s 0--10vdc analog output

that controls the unit’s supply fan VFD speed.

NOTE: This output is only applicable if Fan Control is

set to Variable Speed.

NOTE: Service Test Mode does not timeout. Be sure to

turn off test mode or cycle power to the RTU to return to

normal operation.

Configuration

The RTU Open controller’s configuration points effect the

unit’s inputs and operation. Review and understand the

meaning and purpose of each configuration point before

changing it from the factory default value. Use the RTU

Open Start-up Sheet during configuration; fill in changed

values if changed from factory default. There are three main

configurations menus: SETPOINT, UNIT, and SERVICE.

Each configuration point is described below under its

according menu. See Appendix A for menu structure.

Setpoint

Occupied Heating Setpoint -- The heating setpoint the

controller maintains during the occupied period.

Range = 40 - 90_F Default = 70_F

Occupied Cooling Setpoint – The cooling setpoint the

controller maintains during the occupied period.

Range = 55 - 99_F Default = 76_F

Unoccupied Heating Setpoint – The heating setpoint the

controller maintains during the unoccupied period.

Range = 40 - 90_F Default = 55_F

Unoccupied Cooling Setpoint – The cooling setpoint the

controller maintains during the unoccupied period.

Range = 45 - 99_F Default = 90_F

Effective Heating Setpoint – The current setpoint value

heating operation will control to.

Range = 0 - 120_F

Effective Cooling Setpoint – The current setpoint value

cooling operation will control to.

Range = 0 - 120_F

Optimal Start - The earliest time prior to occupancy, at

which the Optimal Start function may begin to adjust the

effective setpoints. Setting this to 0 will disable optimal start.

Range = 0 - 4 hours Default = 4 hour

Occ Relative Humidity Setpoint – The space RH setpoint

the controller maintains during the occupied period.

Range = 0 to the Unocc RH setpoint

Default 60%

Unocc Relative Humidity Setpoint – The space RH

setpoint the controller will maintain during the

unoccupied period.

Range = 30-100% Default = 95%

DCV Max Ctrl Setpoint – The difference between indoor

and outdoor CO

level which results in maximum

ventilation damper position.

Range = 0-9999ppm Default = 650ppm

Power Exhaust Setpoint –Usedtodeterminewhenthe

power exhaust operation will begin. This setpoint is based

on the maximum fan speed. When the economizer

position opens above this point, power exhaust operation

will begin and when the damper position falls 5% below

this point, the power exhaust will shutdown.

Range = 20-90% Default = 50%

NOTE: This setpoint is automatically adjusted if the Fan

Type is set to Variable Speed or 2--Speed in order to

maintain proper building pressure. The actual calculated

value, Calculated PE Setpoint, is shown in

MAINTENANCE.

NOTE: This point is only used when Continuous

Occupied Exhaust = NO

Unit

Fan Mode – Sets the operation of the indoor fan when not

in cooling or heating mode. Refer to fan operation for

details on each operation.

Range = Auto, Continuous, or Always On

Default = Continuous

Power Fail Restart Delay -- Sets how long the controller

delays normal operation after the power is restored.

Typically used to prevent excessive demand when

recovering from a power failure

Range = 0 - 30 sec Default = 5 sec

Fan Off Delay – Time delay in which the fan will

continue run after being commanded off.

Range = 10 -300 sec Default = 90 sec

Minimum Cooling SAT – The supply air temperature

must remain above this value to allow cooling with the

economizer and/or compressors. There is 5_Fplusand

minus deadband to this point. If the SAT falls below this

value during cooling a compressor stage will be removed

and/or the economizer will return to minimum position.

Range = 45 - 75_F Default = 50_F

Maximum Heating SAT – The supply air temperature must

remain below this value to allow heating. There is 5_Fplus

and minus deadband to this point. If the SAT falls below this

value during heating the heat stages will begin to decrease

until the SAT has dropped below this value.

Range = 85 - 150_F Default = 120_F

Vent Dmpr Pos / DCV Min Pos – Minimum damper

position for ventilation during the occupied period when

the fan is operating at full speed.

Range = 0 -- 100% open Default = 20% open

Economizer Purge Min Pos – The damper position used

during the Pre--Occupancy Purge cycle prior to occupancy

when Pre--Occupancy purge is active

Range = 0 -- 100% open Default = 40% open

Low Fan Econ Min Pos – The minimum damper position

used for ventilation during the occupied period when the

fan is operating at it’s lowest speed.

Range = 0 -- 100% open Default = 33% open

NOTE: This setpoint is only applicable if the Fan Type is

set to Variable Speed or 2--Speed.

TS---5580J---02

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 47 48

Kommentare zu diesen Handbüchern

Keine Kommentare

Bryant 580J*04--12 Installationshandbuch Seite 16

Kommentare zu diesen Handbüchern

Verwandte Produkte und Handbücher für Split-System-Klimaanlagen Bryant 580J*04--12