Daikin DP5HM, Руководство по установке

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NOTE: 15.2 SEER2 models have two stages of
compressor heat. During resistance heat test,
increase temperature setting until third stage heat is
energized.
NOTE: If outdoor thermostats are installed, the
outdoor ambient must be below the setpoint of these
thermostats for the heaters to operate. It may be
necessary to jumper these thermostats to check
heater operation if outdoor ambient is mild.
If outdoor thermostats are installed, the outdoor
ambient must be below the set point of these
thermostats for the heaters to operate. It may be
necessary to jumper these thermostats to check
heater operation if outdoor ambient is mild.
7. THERMOSTATS WITH EMERGENCY HEAT. For
thermostats with an emergency heat switch, raise the
temperature setting until the heating second stage
makes contact. The emergency heat switch is located
at the bottom of the thermostat. Move the switch to
emergency heat. The heat pump will stop, the blower
will continue to run, all heaters will come on and the
thermostat emergency heat indicator will come on.
8. If checking the unit in the wintertime, when the
outdoor coil is cold enough to actuate the defrost
control, observe at least one defrost cycle to make
sure the unit defrosts completely.
Final System Checks
1. Check to see if all supply and return air grilles are
adjusted and the air distribution system is balanced
for the best compromise between heating and cooling.
2. Check for air leaks in the ductwork.
3. Check air flow and refrigerant charge. See Sections
on Air Flow Measurement and Adjustment and
Checking Charge .
4. Ensure the unit is free of “rattles”, and the tubing in
the unit is free from excessive vibration. Also make
sure tubes or lines are not rubbing against each
other or sheet metal surfaces or edges. If discovered,
ensure issue is corrected.
5. Set the thermostat at the appropriate setting for
cooling and heating or automatic changeover for
normal use.
6. Ensure the Owner is instructed on the unit operation,
filter, servicing, correct thermostat operation, etc.
NOTE: The “Air Conditioner Start-up Procedure”
is a recommended step as it serves as an system
indicator that the unit will operate normally.
COMPONENTS
1. Contactor - This control is activated (closed) by the
room thermostat for both heating and cooling. The
contactor has a 24V coil and supplies power to the
compressor and outdoor fan motor.
2. Crankcase Heater - This item is “ON” whenever
power is supplied to the unit and the crankcase
heater thermostat is closed. Crankcase heater
thermostat closes at 67° and opens at 85°. It warms
the compressor crankcase thereby preventing liquid
migration and subsequent compressor damage. The
insert type heater is self regulating. It is connected
electrically to the contactor L1 and L2 terminals.
3. Condenser Motor - This item is activated by the
contactor during heating and cooling, except during
defrost and emergency heat operation.
4. Compressor - This item is activated by the contactor
for heating and cooling, except during emergency
heat. It is protected by an internal overload.
5. Contactor Relay - This control is activated by the
thermostat (24V coil) and supplies power to the
contactor.
6. Defrost Control - The Defrost Control provides time/
temperature initiation and termination of the defrost
cycle. When a defrost cycle is initiated, the Defrost
Control shifts the reversing valve to “COOLING”
mode, stops the outdoor fan and brings on
supplemental heat. Normally, a defrost cycle will take
only 2-3 minutes unless system is low on refrigerant
charge or outdoor conditions are severe (i.e. windy
and cold). The defrost control also provides for a 3
minute off cycle compressor delay.
7. Outdoor Thermostat - These optional controls
are used to prevent full electric heater operation at
varying outdoor ambient (0°F to 45°F). They are
normally open above their set points and closed
below to permit staging of indoor supplement heater
operation. If the outdoor ambient temperature is below
0°F with 50% or higher RH, an outdoor thermostat
(OT) must be installed and set at (0°) on the dial.
Failure to comply with this requirement may result in
damage to the product which may not be covered by
the manufacturer’s warranty.
8. Optional Outdoor Thermostat Kit( OTHPPKG-02)
- This outdoor thermostat is an optional accessory
that is pre-set from the factory at 37°F. No other field
setting is required. It comes enclosed in a “birdhouse”
and should be mounted on the corner panel near the
control panel. Once the ambient temperature falls
below the set temperature of 37°F during heating
operation, the thermostat closes and forces the two-
stage compressor to run in high stage.
NOTE: OTHPPKG-02 is required for 2-Ton heat
pump.
9. Reversing Valve Coil - This coil is activated by the
thermostat, in the cooling mode and during defrost.
It positions the reversing valve pilot valve for cooling
operation.
10. Indoor Blower Motor - Units with ECM Motors.
The ECM model indoor blower motor is activated by
the room thermostat by cooling/heating or fan “ON”
position. ECM motors are constant torque motors with
the very low power consumption.
(See
Air Flow Measurement and Adjustment
for speed
adjustment instructions).
11. Blower Interlock Relay – This relay is used to
energize the blower during the electric heat operation.