RT-SVX25C-EN
9
General Information
If this circuit is open before the compressor is started, the compressor will not be allowed to
operate.
Anytime this circuit is opened for 1 continuous second during compressor operation, the
compressor for that circuit is immediately turned “Off”. The compressor will not be allowed to
restart for a minimum of 3 minutes should the contacts close.
If four consecutive open conditions occur during the first three minutes of operation, the
compressor for that circuit will be locked out, a diagnostic communicated to the remote panel (if
installed), and a manual reset will be required to restart the compressor.
Phase Monitor
The Phase Monitor is a 3 phase line monitor module that protects against phase loss, phase
reversal and phase unbalance. It is intended to protect compressors from reverse rotation. It has
an operating input voltage range of 190-600 VAC, and LED indicators for ON and FAULT. There are
no field adjustments and the module will automatically reset from a fault condition.
Low Pressure Control ReliaTel Control
When the LPC is opened for 1 continuous second, the compressor for that circuit is turned off
immediately. The compressor will not be allowed to restart for a minimum of 3 minutes.
If four consecutive open conditions occur during the first three minutes of operation, the
compressor will be locked out, a diagnostic communicated to ICSTM if applicable, and a manual
reset will be required to restart the compressor.
Discharge Line Thermostat ReliaTel Control
The high pressure controls and discharge line thermostats are wired in series between the
compressor outputs on the RTRM and the compressor contactor coils. If the high pressure control
switch or discharge line thermostat open, the RTRM senses a lack of current while calling for
cooling and locks the compressor out. This is an auto reset lockout. If the circuit is open three
consecutive times when the contactor coil should be on, the RTRM sets a manual lockout for that
compressor.
Power Exhaust Control (Optional)
The power exhaust fan is started whenever the position of the economizer dampers meets or
exceed the power exhaust setpoint when the indoor fan is on.
The setpoint panel is located in the return air section and is factory set at 25%.
Lead/Lag Control (Dual Circuit Only)
Lead/Lag is a selectable input located on the RTRM. The RTRM is configured from the factory with
the Lead/Lag control disabled. To activate the Lead/Lag function, simply cut the wire connected to
J3-8 at the RTRM. When it is activated, each time the designated lead compressor is shut off due
to the load being satisfied, the lead compressor or refrigeration circuit switches. When the RTRM
is powered up, i.e. after a power failure, the control will default to the number one circuit
compressor.
Zone Sensor Module (ZSM) (BAYSENS106A)
This electronic sensor features three system switch settings (Heat, Cool, and Off) and two fan
settings (On and Auto). It is a manual changeover control with single setpoint. (Cooling Setpoint
Only)
Zone Sensor Module (ZSM) (BAYSENS108A)
This electronic sensor features four system switch settings (Heat, Cool, Auto, and Off) and two fan
settings (On and Auto). It is a manual or auto changeover control with dual setpoint capability. It
can be used with a remote zone temperature sensor BAYSENS017B.
Содержание TC*150-301
Страница 13: ...RT SVX25C EN 13 Unit Dimensions Figure 1 WITHOUT ECONOMIZER 5 8 WITH ECONOMIZER 5 0 ...
Страница 30: ...30 RT SVX25C EN Installation Figure 17 5 HVAC units 10 HVAC units ...
Страница 31: ...RT SVX25C EN 31 Installation Figure 18 Typical field wiring diagrams for optional controls ReliaTel only ...
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