Ingersoll-Rand ReliaTel, Руководство пользователя, Страница: 37 / 176

RT-SVD03L-EN 37
• LPC 1 or LPC 2 has opened during the 3 minute
minimum “on” time during 4 consecutive
compressor starts. Check LPC 1 circuit by
measuring voltage from RTRM J1-8 to chassis
ground. Check LPC 2 circuit by measuring voltage
from RTRM J3-2 to chassis ground. If 24 VAC is not
present, the circuit is open. 24 VAC should present
at these terminals at all times.
SERVICE
The supply fan proving switch (FFS) has failed to open
within 40 seconds after the fan starts or has closed
during fan operation.
COOL + SERVICE
Static pressure transducer output voltage at RTAM J1-3
is less than 0.25VDC. The transducer output is open,
shorted, or the transducer is reading a negative supply
air pressure.
HEAT + COOL
• The emergency stop input (TB1-5 and TB1-6) is
open. Check this input at the RTRM by measuring
voltage from RTRM J1-12 to chassis ground. 24
VAC should be present whenever the emergency
stop input is closed.
• Outdoor air sensor (OAS) input is open, shorted, or
has failed.
• RDTM communication failure.
• Entering air temperature evaporator temperature
sensor failure.
HEAT + COOL + SERVICE
• Static pressure high duct static trip. The static
pressure has exceeded 3.5" W.C. three consecutive
times.
• Ground wire on transducer is open.
LonTalk ® ® Communication Interface (LCI)
• When an LCI (LonTalk ® Communication Interface)
is installed on a Voyager ™ Commercial VAV unit,
the morning warmup (MWU) setpoint located on
the RTAM board is ignored. The morning warmup
and daytime warmup setpoints come from the
higher priority LCI-R.
• The MWU terminate setpoint is identified as NCI
(network configuration Input) nciSetpoints.
occupied heat. The default setpoint is 71F.
• The MWU initiate setpoint is nciSetpoints.occupied
heat - 1.5F.
Default Operations
The ReliaTel ™ refrigeration module (RTRM) can accept
input from any of the following:
• Mechanical Zone Sensor Module (ZSM)
BAYSENS106-111*, AYSTAT106*-109*
• Programmable Zone Sensor BAYSENS119*, 20*,
AYSTAT666*
• Conventional thermostat BAYSTAT036-038* (or
similar, ASYSTAT701-703*)
• ICS systems – Tracer ® , Tracker ® , VariTrac ®
With each installed device, default modes of operation
come into play, depending on that device’s inputs. The
following is a summary of functions and defaults.
BACnet ® ® Operations
N No otte e:: Reference BACnet ® Integration Guide: BAS-
SVP09*-EN.
Table 2. Default operation for mechanical ZSM (CV
only)
J6 input/connection
if no input/connection
this happens
J6-1- zone temperature Unit stops
J6-2 - common terminal for 1-
5
Unit stops
J6-3 - cooling setpoint (CSP)
HSP + 3F if local unit mode is
Auto, otherwise local HSP
J6-5*- heating setpoint (HSP)
Local CSP - 3F if local unit
mode is Auto, otherwise, local
CSP
J6-3&5 - no CSP or HSP from
ZSM
74F CSP, 71F HSP
J6-4- mode input from ZSM
Auto changeover with
continuous fan
J6-6*- common terminal for 7-
10
LEDs will not function any time
J6-7*- heat indication
LED will not come on while
heating
LED will not flash during heat
fail
J6-8*-cool indication
LED will not come on while
cooling
LED will not flash during cool
fail*
J6-9*- system indication
LED will not come on while unit
has power
J6-10*- service indication
LED will not come on when CFS
or FFS trips
Note: * these connections are only on certain model ZSMs
R Re elliia aT Te ell ™ ™ R Re effrriig ge erra attiio on n M Mo od du ulle e ((R RT TR RM M))