Installation and Maintenance Manual

Diagnostics
RLC-SVX09H-EN 209
Table 135. Communication Diagnostics
Diagnostic Name
Affects
Target Severity Persistence
Active
Modes
[Inactive
Modes] Criteria
Reset
Level
Comm Loss: Chiller% RLA
Output
Chiller Info Latch All
Continual loss of communication between the MP
and the Functional ID has occurred for a 30
second period.
Remote
Comm Loss: Cond Head
Press Control Output
Chiller Immediate Latch All
Continual loss of communication between the MP
and the Functional ID has occurred for a 30
second period.
Remote
Comm Loss: Cond Rfgt
Pressure, Circuit #1
Circuit Immediate Latch All
Continual loss of communication between the MP
and the Functional ID has occurred for a 30
second period.
Remote
Comm Loss: Cond Rfgt
Pressure, Circuit #2
Circuit Immediate Latch All
Continual loss of communication between the MP
and the Functional ID has occurred for a 30
second period.
Remote
Comm Loss: Condenser
Entering Water Temperature
Chiller
Info and
Special
Action
Latch All
RTWD Only: Continual loss of communication
between the MP and the Functional ID has
occurred for a 30 second period. If chiller running,
and condenser water regulating valve option
installed, force valve to 100% flow.
Remote
Comm Loss: Condenser
Leaving Water Temperature
Chiller
Info and
Special
Action
Latch All
RTWD Only: Continual loss of communication
between the MP and the Functional ID has
occurred for a 30 second period. If Chiller is
running in the heat mode of operation – normal
shutdown, otherwise, informational only.
Discontinue Min Capacity Limit forced cprsr
loading due to Low DP in subsequent startups.
Remote
Comm Loss: Condenser Rfgt
Pressure Output
Chiller Info Latch All
Continual loss of communication between the MP
and the Functional ID has occurred for a 30
second period.
Remote
Comm Loss: Condenser
Water Flow Switch
Chiller Immediate Latch All
RTWD only: Continual loss of communication
between the MP and the Functional ID has
occurred for a 30 second period.
Remote
Comm Loss: Condenser
Water Pump Relay
Chiller Normal Latch All
RTWD only: Continual loss of communication
between the MP and the Functional ID has
occurred for a 30 second period.
Remote
Comm Loss: Discharge
Temperature Circuit 1, Cprsr
1A
Circuit Normal Latch All
Continual loss of communication between the MP
and the Functional ID has occurred for a 30
second period.
Remote
Comm Loss: Discharge
Temperature, Circuit 2,
Cprsr 2A
Circuit Normal Latch All
Continual loss of communication between the MP
and the Functional ID has occurred for a 30
second period.
Remote
Comm Loss: Electronic
Expansion Valve, Circuit #1
Circuit Normal Latch All
Continual loss of communication between the MP
and the Functional ID has occurred for a 30
second period.
Remote
Comm Loss: Electronic
Expansion Valve, Circuit #2
Circuit Normal Latch All
Continual loss of communication between the MP
and the Functional ID has occurred for a 30
second period.
Remote
Comm Loss: Emergency
Stop
Chiller Normal Latch All
Continual loss of communication between the MP
and the Functional ID has occurred for a 30
second period.
Remote
Comm Loss: Evaporator
Entering Water Temperature
Chiller Normal Latch All
Continual loss of communication between the MP
and the Functional ID has occurred for a 30
second period. Note: Entering Water Temp
Sensor is used in EXV pressure control as well as
ice making & CHW reset, so it must cause a unit
shutdown even if Ice or CHW reset is not installed.
Remote
Comm Loss: Evaporator
Leaving Water Temperature
Chiller Normal Latch All
Continual loss of communication between the MP
and the Functional ID has occurred for a 30
second period.
Remote