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from the thermostat. This setting is used with dual stage units
(units with 2 compressors and 2 Deluxe D controls) or in mas-
ter/slave applications. In master/slave applications, each com-
pressor and fan will stage according to its switch 2 setting. If
switch is set to stage 2, the compressor will have a 3-second de-
lay before energizing during stage 2 demand.
NOTE: If DIP switch is set for stage 2, the alarm relay will not
cycle during Test mode.
Heating/Cooling Thermostat Type
— Switch 3 provides selec-
tion of thermostat type. Heat pump or heat/cool thermostats
can be selected. Select OFF for heat/cool thermostats. When in
heat/cool mode, Y1 is used for cooling stage 1, Y2 is used for
cooling stage 2, W1 is used for heating stage 1 and O/W2 is
used for heating stage 2. Select ON for heat pump applications.
In heat pump mode, Y1 used is for compressor stage 1, Y2 is
used for compressor stage 2, W1 is used for heating stage 3 or
emergency heat, and O/W2 is used for RV (heating or cooling)
depending upon switch 4 setting.
O/B Thermostat Type
— Switch 4 provides selection for heat
pump O/B thermostats. O is cooling output. B is heating out-
put. Select ON for heat pumps with O output. Select OFF for
heat pumps with B output.
Dehumidification Fan Mode
— Switch 5 provides selection of
normal or dehumidification 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
— Not used.
Boilerless Operation
— Switch 7 provides selection of boil-
erless operation and works in conjunction with switch 8. In
boilerless operation mode, only the compressor is used for
heating when FP1 is above the boilerless changeover tempera-
ture set by switch 8 below. Select ON for normal operation or
select OFF for boilerless operation.
Boilerless Changeover Temperature
— Switch 8 on S1 pro-
vides selection of boilerless changeover temperature set point.
Select OFF for set point of 50 F or select ON for set point
of 40 F.
If switch 8 is set for 50 F, then the compressor will be used
for heating as long as the FP1 is above 50 F. The compressor
will not be used for heating when the FP1 is below 50 F and the
compressor will operates in emergency heat mode, staging on
EH1 and EH2 to provide heat. If a thermal switch is being used
instead of the FP1 thermistor, only the compressor will be used
for heating mode when the FP1 terminals are closed. If the FP1
terminals are open, the compressor is not used and the control
goes into emergency heat mode.
DIP SWITCH BLOCK 2 (S2) — This set of DIP switches is
used to configure accessory relay options.
Switches 1 to 3
— These DIP switches provide selection
of Accessory 1 relay options. See Table 13 for DIP switch
combinations.
Switches 4 to 6
— These DIP switches provide selection
of Accessory 2 relay options. See Table 14 for DIP switch
combinations.
Auto Dehumidification Mode or High Fan Mode
— Switch
7 provides selection of auto dehumidification fan mode or high
fan mode. In auto dehumidification fan mode the fan speed re-
lay will remain off during cooling stage 2 if terminal H is ac-
tive. In high fan mode, the fan enable and fan speed relays will
turn on when terminal H is active. Set the switch to ON for
auto dehumidification fan mode or to OFF for high fan mode.
Switch 8
— Not used.
Table 13 — DIP Switch Block S2 —
Accessory 1 Relay Options
LEGEND
NOTE: All other DIP switch combinations are invalid.
Table 14 — DIP Switch Block S2 —
Accessory 2 Relay Options
LEGEND
NOTE: All other switch combinations are invalid.
Deluxe D Control Accessory Relay Configura-
tions — The following accessory relay settings are applica-
ble for both Deluxe D controls only:
CYCLE WITH FAN — In this configuration, the relay will be
ON any time the Fan Enable relay is on.
CYCLE WITH COMPRESSOR — In this configuration, the
relay will be ON any time the Compressor relay is on.
DIGITAL NIGHT SET BACK (NSB) — In this configura-
tion, the relay will be ON if the NSB input is connected to
ground C.
NOTE: If there are no relays configured for digital NSB, then
the NSB and OVR inputs are automatically configured for
mechanical operation.
MECHANICAL NIGHT SET BACK — When NSB input is
connected to ground C, all thermostat inputs are ignored. A
thermostat set back heating call will then be connected to the
OVR input. If OVR input becomes active, then the Deluxe D
control will enter Night Low Limit (NLL) staged heating
mode. The NLL staged heating mode will then provide heating
during the NSB period.
Water Valve (Slow Opening) — If relay is config-
ured for Water Valve (slow opening), the relay will start 60 sec-
onds prior to starting compressor relay.
Outside-Air Damper (OAD) — If relay is configured
for OAD, the relay will normally be ON any time the Fan
Enable relay is energized. The relay will not start for 30 min-
utes following a return to normal mode from NSB, when NSB
is no longer connected to ground C. After 30 minutes, the relay
will start if the Fan Enable is set to ON.
ACCESSORY 1
RELAY OPTIONS
DIP SWITCH POSITION
123
Cycle with Fan On On On
Digital NSB Off On On
Water Valve — Slow Opening On Off On
OAD On On Off
NSB — Night Setback
OAD — Outside Air Damper
ACCESSORY 2
RELAY OPTIONS
DIP SWITCH POSITION
456
Cycle with Fan On On On
Digital NSB Off On On
Water Valve — Slow Opening On Off On
OAD On On Off
NSB — Night Setback
OAD — Outside Air Damper
CAUTION
To avoid equipment damage, DO NOT leave system filled
in a building without heat during the winter unless anti-
freeze is added to system water. Condenser coils never
fully drain by themselves and will freeze unless winterized
with antifreeze.