Communicating Systems; Wiring For Communications - Rheem RGFG Installation Instructions Manual

TABLE 19
LIST OF FAULT CODES AND NORMAL OPERATION CODES
FAULT CODES / MESSAGES
MESSAGE TO TECHNICIAN at TSTAT (note:
Fault Code Number and Fault Code Text are
displayed in two separate regions of T-Stat
display)
FAULT CODE # TEXT MESSAGE
d1 NO SHARED DATA
d4 MEM CARD INVALD
d5 CARD-HRD CNFLCT
d6 BLWR HP CNFLCT
d7 BLWR MFG CNFLCT
d8 OLD SHARED DATA
d8 OLD SHARED DATA
h
GAS HT ON-NO V
10
IGN 1 HR RTRY
11 FAILED IGNITION
12 LO FLAME SENSE
13 FLAME LOST
14 UNEXPCTED FLAME
22 MAIN LIMIT OPEN
23 HALC LIMIT OPEN
26 LINE_NTRL RVRSD
33 MRLC OPEN
44 LPC CLOSED
45 LPC OPEN
46 LPC OPEN
55 HPC CLOSED
57 HPC OPEN
60 BLWR FLT-RUN
61 BLWR FLT-NO RUN
66 BLOWER OVRSPEED
68 NO BLWR COMM
71 NO INDUCER COMM
77 NO GV FEEDBACK
93
CONTROL FLT
NORMAL OPERATION CODES / MESSAGE S
CODE
DESCRIPTION (Neither a code or message is displayed at the thermostat.
DISPLAYED AT
FURNACE
0 Standby mode - no thermostat calls, no active faults.
c Low-stage cooling (not displayed in communicating modes)
C High-stage cooling (displayed during both low and high cooling in communicating mode)
F Continuous Fan Operation
hp Low-stage heat-pump operation
HP High-stage heat-pump operation
H (steady) Furnace heat with valid modulation signal or Communicating heat signal
h (steady) Heat call with no valid modulation signal (legacy modes only)
NOTE: To clear current fault codes in the furnace control buffer, push and hold down the "FAULT RECALL"
button (SW1) for three seconds.
horizontal members (turned vertical in the application) for four seconds as confirmation that the faults have
been cleared. This will clear faults in the buffer displayed at power-up on the seven-segment display and in
the user menu displayed at the thermostat.
NOTE: The following fault codes will not be stored back-to-back in the fault buffer. These will only be stored
in the buffer if the previous fault stored was a different fault. 11, 45, 46 and 57.
58
MESSAGE TO HOMEOWNER
"Call For Service" & "CHECK FURNACE"
(None)
(None)
"Call For Service" & "CHECK FURNACE"
"Call For Service" & "CHECK FURNACE"
(None)
"Call For Service" & "CHECK FURNACE"
(None)
"Call For Service" & "CHECK FURNACE"
(None)
(None)
(None)
"Call For Service" & "CHECK FURNACE"
(None)
"Call For Service" & "CHECK FURNACE"
"Call For Service" & "CHECK FURNACE"
"Call For Service" & "CHECK FURNACE"
"Call For Service" & "CHECK FURNACE"
"Call For Service" & "CHECK FURNACE"
"Call For Service" & "CHECK FURNACE"
"Call For Service" & "CHECK FURNACE"
"Call For Service" & "CHECK FURNACE"
(None)
"Call For Service" & "CHECK FURNACE"
(None)
"Call For Service" & "CHECK FURNACE"
"Call For Service" & "CHECK FURNACE"
"Call For Service" & "CHECK FURNACE"
"Call For Service" & "CHECK FURNACE"
number only is displayed at the furnace control.)
The right-most Seven-Segment Display will energize the upper and lower
COMMUNICATING SYS-
TEMS
The modulating furnace is capable
of communicating with a thermostat
and condenser to improve cooling
and heat-pump airflow, displaying
active faults and active furnace
CODE
information at the thermostat and
NUMBER
improved diagnostics and trou-
(displayed at
furnace)
bleshooting.
d1
d4
WIRING A FURNACE FOR COM-
d5
MUNICATIONS.
d6
d7
Maximum wire lengths and notes
d8
about wiring communicating sys-
d8
h (steady)
tems are noted below.
10
11
MAXIMUM COMMUNICATING
12
13
WIRE LENGTHS (1, 2, R & C)
14
Max Wire Length – Thermostat to
22
Furnace = 100 FT @ 18 AWG*
23
26
Max Wire Length – Furnace to
33
Condenser = 125 FT @ 18 AWG*
44
45
Notes:
46
55
1. When using twisted pairs, be
57
sure the wires connected to pins
60
labeled "1" (recommended wire
61
color = green) and "2" (recom-
66
mended wire color = yellow) are
68
71
a twisted pair.
77
2. Wires may be solid or stranded..
93
3. *Wire gage smaller than 18 AWG
is not approved or recommended
for this application.
A code
4. When using existing wire from a
previous installation, be sure to
trim the tip of the wire back past
the insulation and strip a small
amount of insulation from the
wire to expose clean new copper
for the communicating connec-
tions. Fresh copper must be
exposed when making the com-
municating connections or com-
munications may not be properly
established.
Figure 45 is the wiring diagram for
connecting the furnace to an
approved ClimateTalk communicat-
ing thermostat and approved Rheem
or Ruud communicating condenser.
The only approved configuration is
to install dedicated wires directly
from the furnace to the thermostat
and a separate set of dedicated
wires directly from the furnace to the
condenser. Note: The only
approved configuration requires that
four dedicated wires (1, 2, R and C)
be installed from the furnace to the
condenser.