Orion-system VCM-X/RNE Operator Interfaces Manuale Utente Scaricare il pdf (Pagina 42)

VCM-X / RNE SETPOINTS

VCM-X / RNE Operator Interfaces Technical Guide

Setpoint Screen #13 - Dehumidiﬁ cation Indoor

RH & OA Dewpoint

VCM-X / RNE Spts

Dehumidification Spt

Indoor RH....: 50%

OA Dewpoint..: 55ºF

On VAV or CAV conﬁ gured units that are not using 100% Outdoor Air,

when the Indoor Relative Humidity percentage rises above the Indoor

RH Setpoint, the unit will start operating in Dehumidiﬁ cation Mode.

If an Indoor Humidity Sensor is installed, the unit will reset the Coil

Suction Temperature Setpoint as needed to maintain this Indoor RH

Setpoint. This includes VAV, CAV and MUA applications.

On MUA conﬁ gured units that are using 100% Outdoor Air, when the

Outdoor Air Dewpoint Temperature rises above the OA Dewpoint Set-

point, the unit will start operating in Dehumidiﬁ cation Mode.

Description Minimum Default Maximum

Dehumidiﬁ cation Setpoint

Indoor RH

1% 50% 100%

Dehumidiﬁ cation Setpoint

OA Dewpoint

35ºF 55ºF 80ºF

Setpoint Screen #14 - Dehumidiﬁ cation Coil

Temperature

VCM-X / RNE Spts

Dehumidification

Coil Temperature

Setpoint.....: 45ºF

During the Dehumidiﬁ cation Mode, the VCM-X / RNE uses the calcu-

lated Coil Temperature to activate DX Cooling based on this Dehumidi-

ﬁ cation Coil Temperature Setpoint. The VCM-X / RNE uses a Suction

Pressure Transducer to read Suction Pressure (the Saturation Vapor

Pressure of the Refrigerant) and converts this Suction Pressure reading

to a Coil Temperature value. This calculation is based on using R22 or

R410A refrigerant only and will not work with any other refrigerant.

This setpoint determines the number of compressor stages that need to

be activated to maintain the Dehumidiﬁ cation Coil Temperature Setpoint.

Description Minimum Default Maximum

Dehumidiﬁ cation Coil

Temperature Setpoint

35ºF 45ºF 70ºF

VCM-X / RNE Setpoint Screens

Setpoint Screen #15 - Cooling Head Pressure

Setpoint

VCM-X / RNE Spts

Cooling

Head Pressure

Setpoint: 315PSI

If you are using the Head Pressure Module, this is the Cooling Setpoint

for control of the condenser fan speed. This is based on the highest

head pressure reading of up to 4 Head Pressure Sensors. This screen

only applies if using the VCM-X Modular, VCM-X WSHP Controller,

or RNE Controller.

See the One Condenser Head Pressure Module Technical Guide, the

Two Condenser Head Pressure Module Technical Guide, or the RNE

Controller Technical Guide for detailed information.

Description Minimum Default Maximum

Cooling Head Pressure

Setpoint

200 PSI 315 PSI 400 PSI

Setpoint Screen #16 - Reheat Head Pressure

Setpoint

VCM-X / RNE Spts

Reheat

Head Pressure

Setpoint: 400PSI

If you are using the Head Pressure Module, this is the Reheat Setpoint

for control of the condenser fan speed during dehumidiﬁ cation. This is

based on the highest head pressure reading of up to 4 Head Pressure

Sensors. This screen only applies if using the VCM-X Modular, VCM-X

WSHP Controller, or RNE Controller.

See the One Condenser Head Pressure Module Technical Guide, the

Two Condenser Head Pressure Module Technical Guide, or the RNE

Controller Technical Guide for detailed information.

Description Minimum Default Maximum

Reheat Head Pressure

Setpoint

200 PSI 400 PSI 400 PSI

1 2 ... 37 38 39 40 41 42 43 44 45 46 47 ... 83 84

Commenti su questo manuale

Nessun commento

Orion-system VCM-X/RNE Operator Interfaces Manuale Utente Pagina 42

Commenti su questo manuale

Prodotti e manuali riguardandi Hardware Orion-system VCM-X/RNE Operator Interfaces