Deluxe D Control Accessory Relay Configurations; Cycle With Fan; Configuration; Cycle With Compressor - Carrier AQUAZONE 50RHC Operating And Troubleshooting

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O/13 Thermostat
Type -- Switch 4 provides selectiou
for heat
pump O/B thermostats,
O is cooliug output. B is heating out-
put. Select ON for thermostats
with O output. Select OFF for
thermostats
with B output.
Dehumidificatiou
Fau Mode --
Switch 5 provides
selection
of uonnal or dehumidificatiou
fan mode, Select OFF for dehu-
midification
mode. The fan speed relay will remain OFF dur-
ing cooling stage 2, Select ON for normal mode. The fan speed
relay will turn on during cooling stage 2 in normal mode.
Switch 6 -- Switch 6 provides selection for DDC operation.
If
set to DDC output fit EH2, the EH2 terminal will continuously
output file last fault code of the controllel: If the control is set to
EH2 normal, then the EH2 will operate
as stml&trd electric
heat output. Set the switch to ON to set the EH2 to normal. Set
the switch to OFF to set the DDC output fit EH2.
Boilerless
Operation
--Switch
7 provides
selection of boiler-
less operation and works in conjunction
with switch 8. In boil-
erless operation
mode, only the compressor
is used for heating
when FPI is above the boilerless
changeover
temperature
set
by switch 8 below. Select ON for normffl operation
or select
OFF for boilerless operation.
Boilerless
Changeover
Temperature
--
Switch 8 on SI pro-
vides selection of boilefless
changeover
temperature
set point.
Select OFF for set point of 50 F or select ON for set point of
4O E
If switch 8 is set for 50 F. then the compressor
will be used
for heating as long as the FPI is above 50 E The complessor
will not be used for heating when the FPI is below 50 F and the
compressor
will operates in emergency
heat mode, staging on
EH 1 and EH2 to provide heat. If a thermffl switch is being used
instead of the EPI thermistol:
only the compressor
will be used
for heating mode when the FPI terminfds me closed. If the FPI
terminals are open, the compressor
is not used and the control
goes into emergency
heat mode.
DIP SWITCH
BANK 2 ($2) -- This set of DIP switches
is
used to configure accessory relay options. See Fig. 4.
Switches
1 to 3 --
These DIP switches
provide
selection
of
Accessory
1 relay
options.
See
Table
1 for DIP switch
combinations.
Switches
4 to 6 --
These DIP switches
provide
selection
of
Accessory
2 relay
options.
See
Table
2 for DIP
switch
combinations.
Auto Dehumidification
Mode or High Fan Mode -- Switch 7
provides
selection
of auto dehumidification
fan mode or high
fan mode. hi
auto dehumidification
fan mode the fan speed
relay will remain off during cooling
stage 2 if terminal H is
active. In high fan mode, the fan enable and fan speed relays will
turn on when terminffl H is active. Set the switch to ON for auto
dehumidification
fan mode or to OFF for high fan mode.
Factory
Setting -- Switch 8 is set to ON. Do not chmlge the
switch to OFF unless instructed to do so by the factory.
Table 1 -- DIP Switch Block $2 --
Accessory 1 Relay Options
ACCESSORY
1
RELAY OPTIONS
Cycle with Fan
Digital NSB
Water Valve -- Slow Opening
OAD
Reheat I
(Fall in Humidity)
Reheat -- (Rise in Humidity)
LEGEND
NSB
--
Night Setback
OAD
--
Outside
Air Damper
NOTE: All other DIP switch combinations
are invalid.
DIP SWITCH
POSITION
1
2
3
On
On
On
Off
On
On
On
Off
On
On
On
Off
Off
Off
Off
Off
On
Off
Table 2 -- DIP Switch
Block S2 --
Accessory
2 Relay
Options
ACCESSORY
2
DIP SWITCH
POSITION
RELAY OPTIONS
4
5
6
Cycle with Compressor
On
On
On
Digital NSB
Off
On
On
Water Valve -- Slow Opening
On
Off
On
OAD
On
On
Off
LEGEND
NSB
--
Night Setback
OAD
--
Outside Air Damper
NOTE: All other switch combinations
are invalid.
Deluxe
D Control
Accessory
Relay Configura-
tions
--
The following
accessory
relay settings fire applica-
ble for Deluxe D control:
CYCLE
WITH FAN --In
this configuration,
the accessory
relay 1 will be ON rely time the Fro1 Enable relay is on.
CYCLE
WITH COMPRESSOR
-- In this configuration,
the
accessory relay 2 will be ON any time file Compressor
relay is
OU.
DIGITAL
NIGHT
SET BACK
(NSB) --In
this configura-
tion, the relay will be ON if the NSB input is comlected
to
ground C.
NOTE: If there are no relays configured
for digital NSB, then
the NSB and OVR inputs am automaticfdly
configured
for
mechmfical operation.
See the Mechmfical
Night Set Back sec-
tion on page 16.
WATER VALVE (Slow Opening) -- If relay is configured
for
Water Vfflve (slow opening),
the relay will stm't 60 seconds
prior to starting compressor
relay.
OUTSIDE
AIR DAMPER
(OAD) --If
relay is configured
for
OAD, the relay will normfdly be ON any time the Fan Enable
relay is energized.
The relay will not start for 30 minutes fol-
lowing a return to normal mode fi_m NSB, when NSB is no
longer connected
to ground C. After 30 minutes, the relay will
stfut if the Fan Enable is set to ON.
HUMIDITY
CONTROL
-- A separate humidistat
will allow
the unit to dehumidify
once the heating call is satisfied. Some
integrated thermostats
may be reconfigured
to ffllow dehumidi-
fication in heating. See Fig. 4 for typical humidistat
wiring. See
below for Deluxe D DIP switch settings and reheat logic.
SWITCH BANK 2
REHEAT (ON) REHEAT (OFF)
SENSOR
LOGIC
2,1 I 2,2 I 2,3
Terminal
H
Terminal
H
Humidistat
OFF
OFFI
OFF
Reverse
0 vac
24 vac
Dehumidistat
OFF
ON
OFF
Standard
24 vac
0 vac
Reheat
Humidistat
--
The humidistat
energizes
a contact when the
humidity of the space rises or falls. See Table 3. A reheat coil
(water coil located after the evaporator
coil) will be modulated
by a motorized
vfdve enabled by the ACCI relay to bring the
supply air to neutral conditions.
Table 3 -- Deluxe D Reheat Operating
Modes
INPUT*
OUTPUT
MODE
O
G
Y1
H
O
G
Yt
Reheat
Mode
No Demand
ON/OFF
OFF OFF OFF
ON/OFF
OFF OFF
OFF
Fan Only
ON/OFF
ON
OFF OFF
ON/OFF
ON
OFF
OFF
Cooling
ON
ON
ON
OFF
ON
ON
ON
OFF
Cooling
and
ON
ON
ON
ON
ON
ON
ON
OFF
Humidistati"
Humidistat
ON/OFF
OFF OFF
ON
ON
ON
ON
ON
Only
Heating
OFF
ON
ON
OFF
OFF
ON
ON
OFF
Heating
and
OFF
ON
ON
ON
OFF
ON
ON
OFF
Humidistat
_Reheat mode may be controlled with a humidistat configured for a rise or fall
in humidity,
]-Cooling input takes priority over dehumidify
input,
_*Deluxe D is programmed
to ignore the H demand when the unit is in Heating
mode.
10

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