Pre-Start-Up - Carrier AQUAZONE 50PSW036-360 Installation And Service Instructions Manual

WATER SOLENOID VALVES - - Watersolenoid valves
may beused o nvariable flowsystems and ground w ater instal-
lations. A typical wellwater c ontrol valve wiring which can
limitwaste w ater inalockout condition isshown i nFig.14. A
slow closing v alve may berequired toprevent water halmner.
When using a slowclosing valve, s pecial wiringconditions
need t obeconsidered. The valve takes a pproximately 60sec-
onds t oopen ( very littlewater will flowbefore 4 5seconds) and
it activates thecompressor onlyafter t hevalve is completely
opened byclosing i tsend switch. When wired asshown, the
valve willhave t he following o perating characteristics:
1. Remain open d uring a lockout.
2. Draw approximately 25to35-va t hrough t he
'°Y" signal
of the thermostat.
I IMPORTANT: This can overheat the anticipators of I
electromechanical thennostats. Only use relay based
I
electronic thermostats.
PRE-START-UP
System Checkout
E
When the installation is complete,
follow the system checkout procedure outlined below before
starting up the system. Be sure:
1. Voltage is within the utilization range specifications of the
unit compressor and fan motor, and voltage is balanced
for 3-phase units.
2. Fuses, breakers and wire are correct size.
3. Low voltage wiring is complete.
4. Piping and system flushing is complete.
5. Air is purged from closed loop system.
6. System is balanced as required. Monitor if necessary.
7. Isolation valves are open.
8. Water control valves or loop pumps are wired.
9. Transfonner switched to lower voltage tap if necessary.
10. Service/access panels are in place.
11. Control field-selected settings are correct.
FIELD SELECTABLE INPUTS
Jumpers and DIP (dual in-line package) switches on the
control board are used to customize unit operation and can be
configured in the field.
IMPORTANT: Jumpers and DIP switches should only [
be clipped when power to control board has been turned
I
off.
Complete C Control Jumper Settings (See
Fig. 4-7)
WATER COIL FREEZE PROTECTION (FP1) LIMIT
SETTING--Select jumper 3, (JW3-FP1 Low Temp) to
choose FP1 limit of 10 F or 30 E To select 30 F as the lhnit,
DO NOT clip the jumper. To select 10 F as the limit, clip the
jumper.
ALARM RELAY SETTING -- Select jumper 1 (JWl-AL2
Dry) for connecting alarm relay terminal (AL2) to 24 vac (R)
or to remain as a dry contact (no connection). To connect AL2
to R, do not clip the jumper. To set as dry contact, clip the
jumper.
Complete C Control DIP Switches
E
The
Complete C control has one DIP switch block with five
switches. See Fig. 4-7.
PERFORMANCE MONITOR (PM) -- DIP switch 1 will
enable or disable this feature. To enable the PM, set the switch
to ON. To disable the PM, set the switch to OFF.
STAGE 2 -- DIP switch 2 will enable or disable compressor
delay. Set DIP switch to OFF for Stage 2 in which the compres-
sor will have a 3-second delay before energizing. DIP switch 3
is not used. DIP switch 4 is not used. DIP switch 5 is used to
initiate one or 3 tries for the FP1 fault. If water freeze protec-
tion for the water coil is needed, then DIP switch 5 can be set to
lock out on the FP1 fault after one try.
Deluxe D Control Jumper Settings (See
Fig. 8 and 9)
WATER COIL FREEZE PROTECTION (FP1) LIMIT
SETTING--Select jumper 3, (JW3-FP1 Low Temp) to
choose FP1 lhnit of 10 F or 30 E To select 30 F as the limit,
DO NOT clip the jumper. To select 10 F as the lhnit, clip the
jumper.
ALARM RELAY SETTING- Select jumper 4 (JW4-AL2
Dry) for connecting alarm relay terminal (AL2) to 24 vac (R)
or to remain as a dry contact (no connection). To connect AL2
to R, do not clip the jumper. To set as dry contact, clip the
jumper.
LOW PRESSURE SETTING -- The Deluxe D control can
be configured for Low Pressure Setting (LP). Select jumper 1
(JW1-LP Norm Open) for choosing between low pressure in-
put normally opened or closed. To configure for normally
closed operation, do not clip the jumper. To configure for nor-
mally open operation, clip the jumper.
Deluxe D Control DIP
Switches
_ The Deluxe D
control has 2 DIP switch blocks. Each DIP switch block has 8
switches and is labeled either S1 or $2 on the circuit board. See
Fig. 8 and 9.
DIP SWITCH BLOCK 1 (S1) -- This set of switches offers
the following options for Deluxe D control configuration:
Performance Monitor (PM) -- Set switch 1 to enable or dis-
able performance monitor. To enable the PM, set the switch to
ON. To disable the PM, set the switch to OFE
Compressor Relay Staging Operation -- Switch 2 will en-
able or disable compressor relay staging operation. The com-
pressor relay can be set to turn on with Stage 1 or Stage 2 call
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
delay 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, Wl 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, Wl 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.
Switches 6. 7. 8 -- Not used.
DIP SWITCH BLOCK 2 ($2) -- Not used.
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