Orion-system VCM-X/RNE Controller Uživatelský manuál stáhnout pdf (Strana 53)

VCM-X / RNE Operator Interface SD

VCM-X / RNE SETPOINTS

Description Minimum Default Maximum

Heat Pump

Auxiliary Heating Delay

0 Min 3 Min 30 Min

Setpoint Screen #34 - Heat Pump Defrost

Setpoints

VCM-X / RNE Spts

Heat Pump Defrost

Defrost Tmp: 30ºF

Defrost Tmr: 30 Min

The Defrost Temp Setpoint is the Coil Suction Temperature at which

the unit will go into Defrost Mode during Heat Pump Heating opera-

tion. This unit will operate in the Defrost Mode for 10 minutes or until

the Head Pressure reaches 450 PSI. The Defrost Timer determines the

length of time between Defrost Modes. The length of the Defrost Timer

can be automatically be adjusted by the Adaptive Defrost Adjustment

described in Setpoint Screen # 35. This Defrost Mode is only available

if using the VCM-X E-BUS Controller or RNE Controller and a Head

Pressure Module. A Suction Pressure Transducer is also required. This

screen only applies if using the VCM-X E-BUS Controller or RNE

Controller with a Suction Pressure Sensor, a Head Pressure Module,

and Head Pressure Transducer(s). This screen does not apply if using

the VCM-X WSHP Controller and a WSHP Module.

Description Minimum Default Maximum

Heat Pump Defrost Temp 0ºF 30ºF 50ºF

Heat Pump Defrost Timer 10 Min 30 Min 90 Min

Setpoint Screen #35 - Adaptive Defrost Adj.

Setpoint

VCM-X / RNE Spts

Adaptive Defrost

Adj. Setpoint: 0 MIN

Once initiated, the Defrost Mode is active until the Head Pressure reaches

450 PSIG or until a 10 minute timer has expired. Enter a value greater

than zero to enable the Adaptive Defrost Adjustment of the Heat Pump

Defrost Timer (Screen #34). This adjustment value will be subtracted

from the Heat Pump Defrost Timer if the Defrost Mode lasts the entire

10 minutes. A proportion of this adjustment value will be added to the

Heat Pump Defrost Timer if the Defrost Mode only lasts between 8

minutes and 0 minutes. This screen only applies if using the VCM-X

Modular Controller or RNE Controller with a Suction Pressure Sensor,

a Head Pressure Module, and Head Pressure Transducer(s). This screen

does not apply if using the VCM-X WSHP Controller and a WSHP

Protection Module.

Description Minimum Default Maximum

Adaptive Defrost Adj. 0 Min 0 Min 30 Min

VCM-X / RNE Setpoint Screens

Setpoint Screen #36 - Heat Wheel Defrost

VCM-X / RNE Spts

Heat Wheel Defrost

Setpoint: 32ºF

The unit will go into Heat Wheel Defrost Mode when the Outdoor Air

is below this setpoint.

Description Minimum Default Maximum

Heat Wheel Defrost 0ºF 32ºF 50ºF

Setpoint Screen #37 - Internal Schedule

Optimal Start Soak Multiplier

VCM-X / RNE Spts

Internal Schedule

Optimal Start Soak

Multiplier: 0.0

The Internal Schedule Optimal Start Soak Multiplier Setpoint is a multi-

plier that if set to a number greater than 0 will be used as a multiplier for

calculating the Optimal Start Time for the HVAC unit. This multiplier

is only applied if the unit has been off for more than 24 hours. See the

VCM-X Controller Technical Guide, VCM-X Modular E-BUS Controller

Technical Guide, or RNE Controller Technical Guide for more detailed

information regarding the Optimal Start. This multiplier is only applied

if you are using the Unit Controller Internal Schedule.

Description Minimum Default Maximum

Internal Schedule Optimal

Start Soak Multiplier

0.0 0.0 5.0

Setpoint Screen #38 - Trend Log Interval

VCM-X / RNE Spts

Trend Log

Interval: 15 MIN

An internal Trend Log is constantly updated at a rate equal to this value.

Description Minimum Default Maximum

Trend Log Interval 1 Min 15 Min 60 Min

1 2 ... 48 49 50 51 52 53 54 55 56 57 58 ... 91 92

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