McQuay | PDAA | Specifications | McQuay PDAA Specifications

McQuay PDAA Specifications
Installation & Maintenance Data
IM 934-5
Group: PTAC
Part Number: 910146417
Date: August 2013
Applied Packaged Terminal Air Conditioner
Model PDAA Dual Motor Angled Top Unit - 16" x 42" with R-410A Refrigerant
Note: Installation and maintenance are to be performed only by qualified personnel who are familiar with local codes and
regulations and are experienced with this type of equipment. Caution: Sharp edges and coil surfaces are potential injury
hazards.
©2013 McQuay International
•
1-800-432-1342 •
www.daikinmcquay.com
IM 934-5 (8-13)
Contents
Daikin McQuay Model PDAA Product Nomenclature........4
Sequence of Operation......................................................25
Heat Mode.......................................................................26
Standard or Programmable Digital Touchpad (LUI) Control
Set-Up – Mode Selection.................................................26
Introduction...........................................................................5
Thermistor Error Codes and Conditions..........................27
Dimensional Data.................................................................6
Unit Protective Logic..........................................................28
Wall Opening Requirements................................................7
Wall Construction Types....................................................7
Room Freeze Protection....................................................28
Safety Information................................................................3
Inspection..............................................................................3
Installing Subbase(s)...........................................................8
Electric Subbase................................................................8
Hydronic Subbase.............................................................9
Assembling the Hydronic Subbase Heat Section..............9
Hydronic Subbase – Plumbing and Electrical
Connections.....................................................................10
Installing Condensate Drain Kit(s)....................................11
Indoor Drain Kit................................................................ 11
External Drain Kit............................................................. 11
Installing Wall Sleeve.........................................................12
Considerations.................................................................12
Wall Sleeve Extension for Thick Wall Construction
Types...................................................................................12
Installing Wall Sleeve Extension.......................................13
Installing Louver Frame for Thin Wall Construction
Types...................................................................................13
Installing Recessed Louver Wall Sleeve..........................13
Installation Requirements for Recessed Louver Wall
Sleeve..............................................................................13
Procedure........................................................................14
Anchoring The Wall Sleeve.............................................14
Attaching Cabinet Wall Sleeve to Subbase.....................14
Installing Basic Wall Sleeve..............................................15
Frame and Brick Wall Construction Type........................15
Panel Wall Construction Type..........................................16
Attaching Wall Sleeve to Subbase...................................16
Thick Wall Construction Type..........................................17
Attaching Wall Sleeve to Subbase...................................19
Outdoor Louvers................................................................19
Typical Louver Design.....................................................19
Installing Louver(s)............................................................20
Installing Chassis...............................................................20
Equipment Start-up............................................................21
PTAC Startup Report–Audit...............................................22
Controls...............................................................................23
Standard (Non-programmable) Digital Touchpad
Control.............................................................................23
User Interface..................................................................23
Remote Thermostat Control............................................23
Operation.........................................................................24
System Select Operation Using Remote Thermostat......24
Page 2 of 48 Electrical Service Considerations....................................28
Electric Heat Unit.............................................................28
Premium (Programmable) Digital Touchpad Control
Features..............................................................................29
User Interface..................................................................29
Premium, Programmable Digital Touchpad with Automatic
Changeover from Cooling to Heating & Heating to
Cooling............................................................................29
Premium (Programmable) Digital Touchpad Control......30
Clock Set Menu...............................................................30
Remote Wall Mounted Thermostats.................................32
Non-Programmable Thermostat Specs...........................32
Wall-Mounted, 7, 5-2 & 5-1-1 ProgrammableThermostat
Specs...............................................................................33
Standard Auto or Manual-Changeover Two-Stage Heat/
Two-Stage Cool Specs....................................................33
Optional Remote Sensor.................................................33
Wireless Remote Control (Optional).................................34
T9000 Wireless Temperature Control...............................34
Remote Control Node (RCN)...........................................34
Remote Mounted Thermostat Control Considerations....35
Premium (Programmable) Digital Control Board –
Jumper Placement.............................................................36
Standard (Non-Programmable)
Digital Control Board – Jumper Placement.....................37
Digital Control Board with Standby Power – Wiring
Diagram...............................................................................38
Digital Control Board without Standby Power – Wiring
Diagram...............................................................................39
Maintenance (Scheduled)..................................................40
Equipment Protection From The......................................40
Environment....................................................................40
Recommended Spare Parts............................................41
Refrigeration Cycle..........................................................41
Fault and Protection Codes for Applied PTAC/PTHP
Control Board..................................................................42
Solid State Digital Controls – Local User Interface Display
Codes..............................................................................43
Troubleshooting.................................................................44
IM 934-5
Safety Information
Inspection
Follow all safety codes. Wear safety glasses and work
gloves. Use a quenching cloth for brazing operations.
Have a fire extinguisher available. Follow all warnings and
cautions in these instructions and attached to the unit. Consult applicable local building codes and National Electrical
Codes (NEC) for special requirements.
Recognize safety information. When you see a safety
symbol on the unit or in these instructions, be alert to the
potential for personal injury. Understand the meanings of the
words DANGER, WARNING, and CAUTION. DANGER
identifies the most serious hazards that will result in death
or severe personal injury; WARNING means the hazards
can result in death or severe personal injury; CAUTION
identifies unsafe practices that can result in personal injury
or product and property damage.
Improper installation, adjustment, service, maintenance, or
use can cause explosion, fire, electrical shock, or other conditions which may result in personal injury or property damage. This product must be installed only by personnel with
the training, experience, skills, and applicable licensing that
makes him/her “a qualified professional HVACR installer.”
When the equipment is received all items should be carefully checked against the bill of lading to be sure all crates
and cartons have been received. All units should be carefully inspected for damage when received. If any damage
is noticed, the carrier should make the proper notation on
the delivery receipt acknowledging the damage. The carrier
should also fill out a carrier Inspection Report. The Daikin
McQuay Traffic Department should then be contacted. The
unit nameplate should be checked to make sure the voltage
agrees with the power supply available.
A complete unit consists of the following components, ordered and shipped separately.
1. Heating/Cooling Chassis and Cabinet or Front Panel.
2. Wall Sleeve.
3. Outdoor Louver.
4. Subbase – Optional for 208V and 230V units but
mandatory for all 265V.
5. Fixed heater with factory installed power cord.
6. Electrical receptacle – Required for 208V and 230V units
but mandatory for all 265V and Hydronic units.
7. Plug cord cover – Optional for 208V and 230V units but
mandatory for all 265V.
WARNING
The installer must determine and follow all applicable codes
and regulations. This equipment presents hazards of electricity, rotating parts, sharp edges, heat and weight. Failure to read
and follow these instructions can result in property damage,
severe personal injury or death. This equipment must be installed by experienced, trained personnel only.
DANGER
Hazardous Voltage!
Disconnect all electric power including remote
disconnects before servicing. Failure to disconnect power before servcing can cause severe
personal injury or death.
CAUTION
Use copper conductors only. Unit terminals are not designed to
accept other types of conductors. Failure to do so can damage
equipment.
IMPORTANT
This product was carefully packed and thoroughly inspected
before leaving the factory. Responsibility for its safe delivery
was assumed by the carrier upon acceptance of the shipment.
Claims for loss or damage sustained in transit must therefore
be made upon the carrier, as follows:
VISIBLE LOSS OR DAMAGE
Any external evidence of loss or damage must be noted on
the freight bill or carrier’s receipt, and signed by the carrier’s
agent. Failure to adequately describe such external evidence
of loss or damage may result in the carrier’s refusal to honor
a damage claim. The form required to file such a claim will be
supplied by the carrier.
CONCEALED LOSS OR DAMAGE
Concealed loss or damage means loss or damage which does
not become apparent until the product has been unpacked.
The contents may be damaged in transit due to rough handling even though the carton may not show external damages.
When the damage is discovered upon unpacking, make a written request for inspection by the carrier’s agent within fifteen
(15) days of the delivery date. File a claim with the carrier since
such damage is the carrier’s responsibility.
Now that you have made an investment in modern, efficient Daikin McQuay® equipment, its care and operation should be a
high priority. For training information on all Daikin McQuay HVAC products, please visit us at www.daikinmcquay.com and
click on Training or phone 540-248-0711 and ask for the Training Department.
IM 934-5
Page 3 of 48
Daikin McQuay Model PDAA Product Nomenclature
Note: For Illustration purposes only. Not all options available with all models.
P DAA 3 0
09 E D M
H
A B B M A A E
Unit Type
Warranty
P = PTAC
A = Standard
E = Extended
X =Special
Product Identifier
PDAA = Air Conditioner - Angled Top
Design Series
1 = A Design 1
2 = B Design 2
3 = C Design 3
4 = D Design 4
5 = E Design 5
SKU
A = Stock
B = Build to Order
Unit Size
007 = 7,000
009 = 9,000
012 = 12,000
015 = 15,000
017 = 17,000 (Cooling Only)
Upgrade Packages
S = Seacoast
Y = None
Voltage
Power Connection
A = 115-60-1
E = 208/230-60-1
J = 265/277-60-1
P = 208/230-60-1 w/standby 115-60-1
R = 265-60-1 w/standby 115-60-1
T = 208-60-1 w/standby 208-60-1
L = Long Cord – 72" (Standard)
S - Short Cord – 30" (Optional)
30" Cord, Standard w/Hydronic
Subbase
Y = None
Brand Name
Room Interface
D = Daikin McQuay
Cabinet Type
B = Angled Top 16" x 42"
Refrigerant
M = R-410A
Controls
Control Board Type
B = Basic Control
P = Premium Controls
(Req'd for Hydronic Heat)
User Interface Type
P = Programmable
N = Non-Programmable
(Unit Mtd. Touchpad)
Y = None (Wall Stat)
Heating Type
E = Electric Heat
H = Hydronic
A = Hydronic w/Intermediate Electric
Electric Heat
A = 2.5 Kw
B = 3.5 Kw
C = 5.0 Kw
Y = None
Hydronic Heat Type
T = Steam Subbase (Normally Closed)
J = Hot Water Subbase (Normally Open)
Y = None
Damper Type
Damper Control
A = Automatic (Required for Hydronic Heating)
M = Manual
Y = None
Page 4 of 48 IM 934-5
Introduction
Daikin McQuay offers the most complete line of PTAC
products for new construction projects and exact replacements for our original Singer, Remington, American Air
Filter and American Standard brand equipment, and models
from other manufacturers.
Daikin McQuay products feature our proven institutional
grade design and construction that allows you to benefit
from the long life, reliability, and low sound levels, along
with higher energy efficiencies for lower operating costs.
Plus, Daikin McQuay offers a nationwide network for original equipment replacements with local parts and service.
Daikin McQuay® Applied Packaged Terminal Air Conditioners are designed and built for through-the-wall installation in
either new or existing buildings. The self-contained refrigerant system delivers cooling to the desired space. Heating can
be accomplished with electric resistance, with hydronic (water or steam), hydronic with intermediate electric resistance.
Generally, an estimate for capacity selection is 35 BTUH
per square foot of floor space (cooling) and 4 BTUH (1.25
watts) per cubic foot (heating). The architect or engineer
must verify the selection. The unit will restart at its last setting after a power interruption.
Figure 1: Model PDAA Unit with Touchpad Control
(Shown with Subbase)
Notes:
1.
Unit pictured with subbase installed. Subbase is
optional on 208V 230V units Subbase is required on
all 265V and units with hydronic heat. See "Electric
Subbase" on page 8 & "Hydronic Subbase" on
page 9. Sides are adjustable.
2.
Opening needs to be 16-5/8" (422mm) x 42-5/8"
(1083mm) when using a louver frame. See "Figure
14: Louver Frame Dimensions" on page 13.
Figure 2: Exploded View of the Applied PTAC Unit
IM 934-5
Page 5 of 48
Dimensional Data
Figure 3: PDAA Chassis & Cabinet Dimensions
42" (1067mm)
523/32"
(145mm)
24" (610mm)
1/2" (13mm)
Flange Type
101/32"
(255mm)
1929/32"
(506mm)
1719/64" (439mm)
Base Pan
141/2"
(368mm)
175/16" (440mm)
285/8" (727mm)
Fin Width
1929/32" (506mm)
3/8" (Stamped) Louver
11/8" (Architectural)
42" (1067mm)
133/4"
(349mm)
81/4"
(210mm)
43" (1092mm)
1" (25mm)
22o
16"
(406mm)
17"
(432mm)
See Note 1
411/2" (1054mm)
81/4"
(210mm)
See
Note 1 &2
22"
(559mm)
Subbase Side Dimension
Electric: 4-3/4" to 13-3/4" (111mm to 349mm)
(See "Electric Subbase" on page 8)
Hydronic: 0" to 133/4" (0mm to 349mm)
(See "Hydronic Subbase" on page 9)
Subbase Height Dimension
Electric: 3" to 4" (76mm to 102mm) with 0" to 1"
(0mm to 25m) leveling screw
Hydronic: 8" (203mm) with 1/4" (6mm) to 1-1/4"
(32mm) leveling bolts
Page 6 of 48 Notes:
1.
Unit pictured with subbase installed. Subbase
is optional on 208V and 230V units. Subbase is
required on all 265V units and units with hydronic
heat. Subbase extends to front edge of unit when
furnished with hydronic heat. Hydronic subbase is
flush with the front of the cabinet. Electric subbase is
flush with wall sleeve.
2.
Subbase side channels are adjustable from 4-3/8" to
13-3/4" (111mm to 349mm).
IM 934-5
Wall Opening Requirements
When roughing in the opening for the wall sleeve, make
certain there is sufficient clearance from the walls and floor.
The wall sleeve should be positioned a minimum of 5/8" in
from the room side finished wall to accommodate the room
cabinet. A minimum distance of 3" above the finished floor
is required for return air.
The rough opening should measure 16-1/4" high x 42-1/4"
wide. When using a louver frame, the opening must measure
16-5/8" x 42-5/8". Louver frames should be used for panel
wall and thin wall applications to assure positive anchoring
to the wall (Figure 14). When a elecrical subbase is used, the
opening must start 3" to 4" above the finished floor (including carpeting) to match the height of the subbase selected.
The subbase is available in 3" or 4" heights and has adjustable leveling legs that provide up to an additional 1" height.
A 3" or 4" subbase is required for 265V models and is optional for 208/230V models.
Figure 5: Masonry Wall (Thick) Construction
Room Side
Wall Sleeve Extension
(See "Installing Wall
Sleeve Extension" on
page 13)
Splitters
Lintels (by others)
16" x 42"
Cabinet/Wall Sleeve
Figure 6: Frame and Brick Construction
Wall Construction Types
16" x 42"
Cabinet/Wall Sleeve
Figure 4: Panel Wall (Thin) Construction
Steel Studs
Lintel
(by others)
161/4" High
Concrete
Pillars
421/4" Wide
Cabinet/Wall Sleeve
Rough Opening
161/4" x 421/4"
Floor
Cabinet/Wall Sleeve Rough
5
5
Opening or 16 /8" x 42 /8" When
using a Louver Frame
(See "Installing Louver Frame for
Thin Wall Construction Types" on
page 13 )
IM 934-5
Page 7 of 48
3. Insert leveling bolts into subbase bottom flange. Four (4)
bolts are required if side extensions are used. Only two
(2) bolts are required if side extensions are not used.
4. Place the subbase on the floor and align its center line
with the center line of the wall opening. Do not fasten the
subbase to the floor. Attach the subbase to the wall sleeve
using the clips provided with the subbase.
5. The wiring should be roughed in and the conduit
connected to the subbase junction box. Complete the
installation by wiring the receptacle to the incoming
power supply.
Installing Subbase(s)
Electric Subbase
Note: An electrical subbase is optional for all 208V and
230V units. A subbase is required for all 265V units.
The subbase is available in 3" (76mm) or 4" (102mm)
heights. The subbase contains leveling legs for
adjustment of up to 1" (25mm) additional height. All
subbases are factory supplied, field installed options.
Procedure
1. If the minimum depth subbase is required, discard the
side extension pieces.
2. If more than the minimum depth is required, determine
the depth of the side extension pieces desired and break
at the proper score line. Insert the extension pieces into
the front assembly and secure with two short black
screws at each side.
Figure 7: Electric Subbase Dimensions
7/8"
(22mm)
CL
Electrical Knockouts
0" (0mm) to 93⁄8" (238mm)
5/8" (16mm)
43⁄8" (111mm)
3"
5"
(127mm)
21⁄2"
(63.5mm)
17"
(432mm)
12"
(305mm)
11⁄2" (38mm)
Plan
411⁄2"
(1054mm)
3" (76mm) or 4" (102mm)
0" (0mm) to 1" (25mm)
Leveling Screw (4 Places)
Front Elevation (Three Front Panels in Place)
Figure 8: Standard Electric Subbase Descriptions
Electrical Junction Box for
Main Power Connection
3" x 5" (76 to 127mm)
Opening for Electrical
and/or Drain Rough-In
Knockouts for Optional
Fuse & Disconnect Switch
Receptacle (Req’d
on 265V Units)
Notes:
1.
Side Channel Dimensions:
Adjustable from 4-3/8" to 13-3/4"
(111mm to 349mm)
2.
Height: 3" to 4" (76mm to 102mm)
with leveling screws adjustable from
0" to 1" (0mm to 25m)
3.
Subbase is optional on 208V and
230V units. Subbase is required
on all 265V units and units with
hydronic heat. Subbase extends to
front edge of unit when furnished
with hydronic heat. Hydronic
subbase is flush with the front of the
cabinet. Electric subbase is flush
with wall sleeve.
Plug/Cord Cover
(Req’d on 265V Units)
Page 8 of 48 IM 934-5
Notes:
1.
Side channels are adjustable from 0" to 9-3/8" in length by inverting them. Side channels are predrilled
to allow infinite adjustment.
2.
Subbase shown with louvered front panel removed.
Front panel is hinged to allow access to valve, coil,
filter & electrical junction box.
3.
Leveling legs are adjustable from 1/4" to 1-1/4".
Hydronic Subbase
A subbase is available as required with all hydronic units.
This subbase measures 8" (203mm) in height and includes
the hydronic heating coil.
Electrical and plumbing rough-in can be done through the
back of the hydronic heat section or through the openings
provided in the bottom of the subbase. The finished piping
can be done now or later.
When the equipment is received, check it thoroughly for
damage. If any damage is noticed, the carrier should make
proper notation on the delivery receipt acknowledging the
damage. The carrier should also fill out a Carrier Inspection
Report. Our Traffic Department should then be contacted.
Check the contents of the carton to be sure all the items
shown in Figure 9 have been received. Check the tagging
instructions to be sure the subbase heat section has been
distributed in the correct room.
Adjust the side channels as follows:
1. Measure the distance between the finished wall and the
rear face of the subbase heat section.
2. Insert the side channel into the slot of the subbase heat
section and telescope it the appropriate distance as
measured in Step 1.
3. Slide the side channels into the subbase heat section and
fasten securely with the screws provided.
4. Invert the subbase heat section and screw in the leveling
legs. The holes provided for the leveling legs are
extruded to eliminate the need for washers and nuts. The
threads of the leveling legs are self-tapping to assure a
rigid fit.
5. Start the leveling leg into the extruded hole and apply a
wrench to the head. Turn the leg into the hole the desired
distance. Repeat this procedure until all the legs are
installed.
6. Return the subbase heat section to the upright position
and center it under the wall opening.
Assembling the Hydronic Subbase Heat
Section
Subbase Side Channel Adjustment
Telescoping side channels are supplied to extend from the
finished wall to the rear of the subbase heat section. The side
channels are reversible to enable adjustment without cutting
or breaking.
Figure 9: Hydronic Subbase Components
Side Channels
Coil Connection
Cover Plate
Optional Fused
Disconnect
Hydronic Heating
Coil
Permanent Mesh Filter
Leveling Legs (6)
Louvered
Front Panel
Relocate Indoor Air Sensor
Bulb Holder in Subbase
IM 934-5
Junction Box
Cover Plate
Attach Indoor Air Sensor
Hold-Down Clip To This
Screw
Page 9 of 48
Electrical
The electrical supply can also be roughed in to the subbase
heat section either through the holes provided in the base or
through the back.
The receptacle is shipped in a separate carton to be field
installed in the knockout provided, and wired in the junction
box.
Complete the installation as described below:
1. Remove the junction box cover plate.
2. Punch out the desired electrical knockout and connect the
electrical supply conduit.
3. Connect power supply wires to the receptacle. Be sure
to properly ground the electrical supply to the subbase
using the green ground screw provided.
4. Mount the receptacle with screws provided and replace
the junction box cover plate.
After the plumbing and electrical work has been completed,
the cabinet wall sleeve can be installed. See "Installing Wall
Sleeve" on page 12
Hydronic Subbase – Plumbing and
Electrical Connections
Plumbing
The coil supplied with the subbase heat section can be used
with hot water or steam heating. Piping rough-in can be
done through the openings in the base, or through the back.
The heating coil is supplied with 5/8" O.D. copper tubing for
sweat connections. Hot water heating requires a normally
open valve and steam heating requires a normally closed
valve.
To connect the valve to the heating coil, follow the steps
listed below:
1. Remove the cover plate, located over the right end
of the coil, for easier access to the supply and return
connections.
2. Always pipe the valve to the supply side. If the heating
medium is hot water, connect the supply (outlet of the
valve) to the bottom connection and the return to the top
connection. If the heating medium is steam, connect the
supply to the top connection and the return to the bottom
connection. The “inlet” port of the valve is connected to
the water/steam source.
3. Sweat in the piping, valve and accessories (as specified
by the design engineer) in the space provided under the
heating coil.
Figure 10: Hydronic Subbase
21/2"
81/4"
Receptacle (Factory installed when
fuse & disconnect are furnished)
3/4"
As Req’d
15"
Fuse
3" x 5" Opening for Electrical
and/or Piping Rough-in
Optional Fuse Disconnect
21/2"
5/8" O.D. Copper Sweat
Top View
71/4"
3/4"
Permanent
Mesh Filter
71/2" 11/2"
63/4"
411/2"
31/4"
51/2"
8"
Electrical
Knockout
1/4" – 11/4"
Leveling Legs
Front View
End View
Page 10 of 48 IM 934-5
3. Drill two (2) 5/32" pilot holes for the mounting screws.
These holes can be located using the drain kit as a
pattern.
4. Assemble the drain kit as shown in Figure 11 and
securely fasten it to the wall sleeve with the screws
provided. Use either the 90o elbow or 6" straight fitting
as required.
5. Install the wall sleeve by referring to the instructions,
"Installing Wall Sleeve" on page 12.
Installing Condensate Drain Kit(s)
External Drain Kit
Indoor Drain Kit
Alternate 6" Long, 1/2"
O.D. Straight Copper Tube
Note: When using the external drain kit, the sleeve must
be flush or beyond the outside finished wall (do not
recess).
External Drain Kit
Figure 11 illustrates the installation of the indoor drain kit.
The indoor drain kit must be installed before placing the
wall sleeve into the opening.
1. Assemble the drain kit as shown in Figure 12.
2. Choose the side of the wall sleeve to which the drain kit
is to be installed.
3. There are drain holes and pilot holes provided in the wall
sleeve from factory. Place the drain kit against the chosen
drain hole and fasten securely with screws provided. Use
either the 90° elbow or 6" straight fitting as required.
4. Cover the unused drain hole with the block off plate and
gasket supplied with the drain kit.
Indoor Drain Kit
1. Locate the drain so that it will be on the room side of the
wall when the wall sleeve is installed.
2. Drill a 1/2" diameter hole in the base of the wall sleeve
for the drain.
Figure 11: Indoor Drain Kit
de
om
Si
Ro
Contractor To Drill
Three (3) Holes To
Accept Drain Kit
See Detail
Detail
Square Drain Holes
Neoprene Sponge Gasket
Gasket
Steel Mounting Plate
Cabinet
Bottom
Cover
Plate
Screws
IM 934-5
Tube
Cover
Plate
1/2"
(13mm)
O.D.
Page 11 of 48
Figure 12: External Drain Kit - installed after the cabinet/wall sleeve has been installed.
e
om
Sid
Ro
Square Drain Holes
1/2" (13mm) O.D. Drain Tube
Neoprene Sponge Gasket
Alternate 6" Long, 1/2" O.D.
Straight Copper Tube
Steel Mounting Plate
Note: Use of 6" straight drain tube will require modification of architectural louver.
Installing Wall Sleeve
Considerations
The wall sleeve is a standard size 16" high, 42" wide and 133/4" deep. Slide channels are factory welded into the sleeve
to facilitate easy installation and removal of the chassis.
Each wall sleeve is predrilled to match the mounting screws
of the chassis. Knockouts are provided for the optional
external drain kit.
All necessary fasteners are supplied to assemble the chassis
and the louver to the wall sleeve.
Wall Sleeve Extension for Thick Wall
Construction Types
The standard wall sleeve will accommodate a maximum
wall thickness described in Table 1. For thicker walls, wall
sleeve extensions are required and are available from your
local representative. When it is supplied by the representative, it is treated for maximum corrosion resistance and
matched to exact size of the standard wall/sleeve. Be sure
to provide air splitters to prevent recirculation of condenser
air. Air splitters should be placed in the wall sleeve as shown
in Figure 13. It is important that spacing of the air splitters
match exactly those dimensions shown in Figure 13.
Table 1: Maximum Wall Thickness
Maximum Wall Thickness
Page 12 of 48 Louver Type
No
Subbase
Standard
Subbase
Hydronic
Subbase
Stamped
14"(356mm)
91/2"(241mm)
131/8"(333mm)
Architectural
14 / "(378mm)
10 / "(264mm)
14"(356mm)
7 8
3 8
IM 934-5
Installing Wall Sleeve Extension
Wall sleeve extensions are shipped in a separate carton and
tagged to match the proper unit. Be sure to check tagging of
the extension against that of the unit. Install the wall sleeve
extension as follows:
1. Position the extension with standard wall sleeve so
proper alignment with drain and mounting holes is
achieved.
2. Place a bead of caulk around the perimeter of the wall
sleeve and another bead around the mating side of the
wall sleeve extension so that the joint is watertight. Be
sure to use a resilient caulking such as silicone.
3. Assemble the wall sleeve extension to the wall sleeve.
Clean out weep holes to assure proper drainage.
4. Attach indoor drain kit (if used) according to the
instructions "Indoor Drain Kit" on page 11. Outdoor
drain kits must be installed after wall sleeve is in place.
5. Continue wall sleeve installation according to instruction
#4 on page 14.
Figure 13: Wall Sleeve Extension
183/16"
(1072mm)
423/16"
(1072mm)
163/16"
(411mm)
443/16"
(1122mm)
33/4"
(92mm)
Note: Wall Sleeve rough opening when using a Louver
Frame must be 16-5/8" x 42-5/8"
Installing Recessed Louver Wall
Sleeve
24"
As Required
Figure 14: Louver Frame Dimensions
Room Side
Installation Requirements for Recessed
Louver Wall Sleeve
1. The Recessed Louver Wall Sleeve must extend a
minimum of 1-1/4" past the finished interior wall.
2. The Recessed Louver Wall Sleeve must be installed so
that it is flush with the exterior face of the building and
the drip edge must extend 1/4" beyond the face
(Figure 15).
16"
Air Splitters
111/8"
Figure 15: Recessed Louver Wall Sleeve Detail
42"
24"
67/8"
Wall Sleeve Extension
Installing Louver Frame for Thin
Wall Construction Types
Louver frames should be used for panel wall and thin wall
applications to assure positive anchoring to the wall. Recess
the wall sleeve so that the louver is flush with the outside
of the building. Place louver frame around wall sleeve as
shown in Figure 14. Secure angles at side and top of walls.
Level the top of the wall
sleeve, NOT the base of the
wall sleeve (see IMPORTANT
notice on page 14)
Steel Lintel
(by others)
133/4"
(349mm)
81/4"
17"
(209mm)
(432mm)
157/8"(403mm)
Room
Cabinet
5/16" (8mm)
Anchor Hole
16"
(406mm)
Wall Sleeve
Drip Edge
Detail
See Note
CAUTION
DO NOT drill holes in the bottom of the wall sleeve as it will
cause leaks.
Finished
Floor
or Carpet
Wall Receptacle
(by others)
Extends 1/4"
beyond the
exterior face
of the building
Note: Standard subbase is available in 3" or 4" (76 mm or
102 mm) height. Leveling legs provide adjustment of
1" (25 mm).
IM 934-5
Page 13 of 48
Procedure
Anchoring The Wall Sleeve
1. Clean the opening of all debris that may interfere with
installation.
2. If the unit is to be supplied with a subbase, install
subbase before installing wall sleeve. See IM 937 for
Electric Subbase Installation details and IM 936-x for the
Hydronic Heat Section Installation details.
3. lf the optional drain kit is to be employed, see "Installing
Condensate Drain Kit(s)" on page 11.
4. If a masonry wall, place a thin pad of soft mortar on
the bottom of the opening and slide in the wall sleeve.
Louver should be flush to exterior surface when
complete.
Anchoring the wall sleeve in the opening is accomplished as
shown in Figure 16.
CAUTION
DO NOT drill holes in the bottom of the wall sleeve as it will
cause leaks.
It is recommended that rubber isolation washers be used
with the fasteners to minimize sound transmission from the
equipment to the wall at the point of contact.
Figure 16: Anchoring the Wall Sleeve (all anchoring
hardware field supplied)
Note: The wall sleeve is not intended to replace the lintel.
IMPORTANT!
Do Not level base of wall sleeve. The bottom of the Recessed
Louver Wall Sleeve has a built in pitch to the outside for proper
drainage. (The inside height dimension is 15.88" and the outside dimension is 16" to provide the necessary drainage pitch).
Level the wall sleeve using the top or the inside top surface of
the wall sleeve
Rubber
Isolation
Washer
Expansion
Anchor Bolt
Molly or
Toggle Bolt
Wood
Screw
NOTICE
A Flush Stamped Louver can not be used with a recessed
louver wall sleeve. Louver is special order. Contact factory for
more information if necessary.
5. Level the wall sleeve in both directions, left to right and
inside to outside, using the top of the wall sleeve and
plumb wall sleeve for vertical on the sides.
6. Secure by anchoring with appropriate fastener(s). A 5/16"
(8mm) hole is provided on each side, 2" (51 mm) down
from the top and 2" (51mm) in from the rear of the wall
sleeve. Additional holes may be required to firmly secure
the wall sleeve (Figure 16).
CAUTION
DO NOT drill holes in the bottom of the wall sleeve as it will
cause leaks.
Page 14 of 48 Do Not Drill Holes in Bottom
of Sleeve
(Except for Internal Drain Kit)
Cripple Stud
Main Stud
Attaching Cabinet Wall Sleeve to Subbase
1. Where a subbase is used, secure wall sleeve to subbase
with clips provided.
2. Caulk the wall sleeve to the wall opening on both the
inside and outside perimeter. Be careful not to plug the
weep holes. Caulking should be resilient, nonhardening
type such as silicone.
3. Secure the two sections by installing the clip screws
supplied with the hardware bag.
4. Caulk indoor/outdoor perimeter of wall sleeve with
resilient caulk such as silicone.
5. Finish any uncompleted electrical and/or plumbing
con­nections.
IM 934-5
Installing Basic Wall Sleeve
Figure 17: Frame and brick with electrical subbase
Steel Lintel
(by others)
Frame and Brick Wall Construction Type
A heavy-gauge, corrosion resistant wall sleeve is provided
for each unit. The wall sleeve is either shipped in a separate
carton or shipped in a multipack of 15.
The basic wall sleeve is designed to be easily installed in a
variety of wall constructions.
Note: The center of gravity is 10" (254mm) from the rear
face of the wall sleeve. The wall sleeve must be
inserted into the wall at least 10" (254mm) or other
support must be employed.
Support can be from a factory supplied subbase or from
other field supplied materials. Recommended installation
procedures are described below (see Figure 17 - 19).
1. Clean the opening of all debris that may interfere with
installation.
2. If the unit is to be supplied with a subbase, install
subbase before installing wall sleeve (see IM 936-x).
3. lf the optional drain kit is to be employed, see "Installing
Condensate Drain Kit(s)" on page 11.
4. Place a thin pad of soft mortar on the bottom of the
opening and slide in the wall sleeve. Be sure to recess
the wall sleeve enough to accommodate outside louver.
This recess is 3/8" (9.5mm) for stamped louvers and 11/4"
(32mm) for architectural louvers. Louver should be flush
to exterior surface when complete.
Outside
Louver
43/8"
(111mm)
133/4"
(349mm)
Mounting
Holes
(by installer)
81/4"
(209mm)
17"
(432mm)
16"
(406mm)
Room
Cabinet
Wall Sleeve
Subbase
Caulk Perimeter
both Indoor and
Outdoor Before
Installing Louver
See Note
Leveling Leg
Finished Floor
or Top
Power Supply Connect
of Carpet
(Alternate Entry)
Note: Standard subbase is available in 3" or 4" (76 mm or
102 mm) height. Leveling legs provide adjustment of
1" (25 mm).
Figure 18: Frame and brick with cord connection
Note: The wall sleeve is not intended to replace the lintel.
5. Level wall sleeve left to right and pitch 1/4" front to
back, pitch to the outside. Secure by anchoring with
appropriate fasteners. A 5/16" (8mm) hole is provided on
each side, 2" (51 mm) down from the top and 2" (51mm)
in from the rear of the wall sleeve. Additional holes may
be required to firmly secure the wall sleeve. Refer to
Figure 16.
Steel Lintel
(by others)
Mounting
Screws
by Installer
CAUTION
DO NOT drill holes in the bottom of the wall sleeve as it will
cause leaks.
6. Where a subbase is used, secure wall sleeve to subbase
with clips provided.
7. Caulk the wall sleeve to the wall opening on both the
inside and outside perimeter. Be careful not to plug the
weep holes. Caulking should be resilient, nonhardening
type such as silicone.
IM 934-5
Outdoor
Louver
133/4"
(349mm)
17"
(432mm)
16"
(406mm)
Wall Sleeve
Caulk Perimeter
81/4"
(209mm)
Room
Cabinet
3" Min. (76mm)
Wall Receptacle
(by others)
Finished Floor
or Carpet
Page 15 of 48
Figure 19: Frame and brick with hydronic subbase
Steel Lintel
(by others)
DO NOT drill holes in the bottom of the wall sleeve as it will
cause leaks.
Outdoor Louver
133/4"
(349mm)
Mounting
Screws
by Installer
Caulk Perimeter
both Indoors
and Outdoors
Before Installing
Louver
81/4"
(209mm)
17"
(432mm)
16"
(406mm)
Wall Sleeve
CAUTION
Room
Cabinet
Hydronic
Heating Coil
7. Where a subbase is used, secure wall sleeve to subbase
with clips provided.
8. Caulk the wall sleeve to the wall opening on both the
inside and outside perimeter. Be careful not to plug the
weep holes. Caulking should be resilient, nonhardening
type such as silicone.
Figure 20: Panel wall construction with standard
electrical subbase
See "Louver Frame
Dimensions" on page
13 for details
81/4"
(209mm)
Outside
Louver
Wall Sleeve
Subbase Side
Channel
Alternate
Electrical
Connections
Finished Floor
or Carpet
Hydronic Subbase
Leveling Leg
Panel Wall Construction Type
For panel wall and thin wall construction, it is recommended
that a louver frame be used (See "Installing Louver Frame
for Thin Wall Construction Types" on page 13, and Figure
20-22).
Panel wall and thin wall construction varies only slightly
from frame and brick construction.
Note: The center of gravity is 10" (260mm) from the rear
face of the wall sleeve. The wall sleeve must be
inserted into the wall at least 10" (260mm) or other
support must be employed.
Support can be from a factory supplied subbase or from
other field sup­plied materials. Installation for this application
is as follows (Figure 20-22).
1. Clean the opening of all debris that may interfere with
installation.
2. If the unit is to be supplied with a subbase, install
subbase before installing wall sleeve (see IM 936-x).
3. If the optional drain kit is to be employed, see "Installing
Condensate Drain Kit(s)" on page 11.
4. Be sure the wall sleeve is mechanically attached to
the wall and caulked to assure a proper seat. It is
recommended that the louver frame be used for this
purpose.
5. Recess the wall sleeve so that the louver is flush with the
exterior of the building.
6. Level wall sleeve left to right and pitch 1/4" front to back
to the outside. Secure by anchoring with appropriate
fasteners or drill additional holes as required to secure
firmly. Refer to "Anchoring The Wall Sleeve" on page
14.
Page 16 of 48 17"
(432mm)
13-3/4"
(349mm)
8-1/4"
(209mm)
16"
(406mm)
Room
Cabinet
Electrical
Subbase
See Note
Gasket &
Caulk
Perimeter
Floor
Power Supply Connect
(Alternate Entry)
Subbase Side Channel
Note: Standard subbase is available in 3" or 4" (76 mm or
102 mm) height. Leveling legs provide adjustment of
1" (25 mm).
Attaching Wall Sleeve to Subbase
1. Where a subbase is used, secure wall sleeve to subbase
with clips provided.
2. Caulk the wall sleeve to the wall opening on both the
inside and outside perimeter. Be careful not to plug the
weep holes. Caulking should be resilient, nonhardening
type such as silicone.
3. Secure the two sections by installing the clip screws
supplied with the hardware bag.
4. Caulk indoor/outdoor perimeter of wall sleeve with
resilient caulk such as silicone.
5. Finish any uncompleted electrical and/or plumbing
con­nections.
IM 934-5
Figure 21: Panel wall construction with cord connection
See "Louver Frame
Dimensions" on page
13 for details)
17"
(432mm)
Outside
Louver
13-3/4"
(349mm)
8-1/4"
(209mm)
16"
(406mm)
Wall Sleeve
Room
Cabinet
Caulk
Perimeter
both Indoors
& Outdoors
3"Min. (76mm)
Floor
Receptacle
(by others)
Conduit
Minimum
2 Supports
(field supplied)
Figure 22: Panel wall installation with hydronic subbase
See "Louver Frame
Dimensions" on page
13 for details
8-1/4"
(209mm)
17"
(432mm)
Room
Cabinet
Hydronic
Heating
Coil
8-1/4"
(209mm)
Outside
Louver
13-3/4"
(349mm)
Thick Wall Construction Type
Installation of wall sleeves for thick walls requires special
consideration. Table 2 should be used to determine the maximum wall thickness allowed for the basic wall sleeve. For
thicker walls, wall sleeve exten­sions are available from your
representative. See "Wall Sleeve Extension" on page 13
for details.
Wall sleeve installation in thick walls is similar to frame and
brick installation. Install as follows (Figure 23-25).
1. Clean the opening of all debris that may interfere with
installation.
2. If the unit is to be supplied with a subbase, install
subbase before installing wall sleeve. See IM 936-x.
3. If the optional drain kit is to be employed, see "Installing
Condensate Drain Kit(s)" on page 11
4. If wall thickness exceeds dimensions shown in Table 2, a
wall sleeve extension must be used. Once the extension
is attached to the wall sleeve, place a thin pad of soft
mortar on the bottom of the opening and slide in the
wall sleeve/extension assembly. Be sure to recess the
wall sleeve enough to accommodate outside louver. This
recess is 3/8" (9.5mm) for stamped louvers and 1-1/4"
(32mm) for architectural louvers. Louver should be flush
to exterior surface when completed.
Note: The wall sleeve is not intended to replace the lintel.
5. Level wall sleeve left to right and pitch 1/4" front to back
to the outside. Secure by anchoring with appropriate
fasteners or drill additional holes as required to secure
firmly. Refer to "Installing Wall Sleeve" on page 12.
16"
(406mm)
CAUTION
DO NOT drill holes in the bottom of the wall sleeve as it will
cause leaks.
Wall Sleeve
Subbase
Side
Channel
Caulk
Perimeter
both Indoors
& Outdoors
6. Where a subbase is used, secure wall sleeve to subbase
with clips provided.
7. Caulk the wall sleeve to the wall opening on both the
inside and outside perimeter. Be careful not to plug the
weep holes. Caulking should be resilient, nonhardening
type such as silicone.
Power Supply Connect
(Alternate Entry)
Leveling Legs with 1" Adjustment
IM 934-5
Page 17 of 48
Table 2: Maximum Wall Thickness
Figure 24: Thick wall construction with cord connection
Maximum Wall Thickness
Louver Type
No
Subbase
Standard
Subbase
Hydronic
Subbase
Stamped
14"(356mm)
91/2"(241mm)
131/8"(333mm)
Architectural
147/8"(378mm)
103/8"(264mm)
14"(356mm)
See
Table 2
Mounting
Screws
(by installer)
Steel Lintel
(by others)
Mounting
Screws
(by installer)
Outside
Louver
Wall
Sleeve
Extension
13-3/4"
(349mm)
16"
(406mm)
Electrical
Subbase
Steel Lintel
(by others)
13-3/4"
(349mm)
Wall
Sleeve
8-1/4"
(209mm)
17"
(432mm)
16"
(406mm)
Wall
Sleeve
Extension
4-3/8" Min.
(111mm)
See
Note 2
1/8"(3mm) Min.
Caulk
Perimeter
Outside
Louver
Figure 23: Thick wall construction with electrical
subbase
Caulk
Perimeter
See
Table 2
Room
Cabinet
3"Min. (76mm)
Floor
8-1/4"
(209mm)
17"
(432mm)
Room
Cabinet
Receptacle (by others)
Figure 25: Thick wall installation with hydronic subbase
See
Table 2
See Note 1
Floor
Steel Lintel
(by others)
Caulk
Perimeter
1" (25mm)
Notes:
1.
Standard subbase is available in 3" or 4" (76 mm or
102 mm) height. Leveling legs provide adjustment of
1" (25 mm).
2.
Wall sleeve extension is available in various depths
and supplied as required.
13-3/4"
(349mm)
Mounting
Screws
(by installer)
Outside
Louver
Wall
Sleeve
Wall
Sleeve
Extension
16"
(406mm)
Room
Cabinet
8-1/4"
(209mm)
17"
(432mm)
Hydronic
Heating
Coil
8-1/4"
(209mm)
Floor
Hydronic Subbase
Page 18 of 48 IM 934-5
Attaching Wall Sleeve to Subbase
1. Where a subbase is used, secure wall sleeve to subbase
with clips provided.
2. Caulk the wall sleeve to the wall opening on both the
inside and outside perimeter. Be careful not to plug the
weep holes. Caulking should be resilient, nonhardening
type such as silicone.
3. Secure the two sections by installing the clip screws
supplied with the hardware bag.
4. Caulk indoor/outdoor perimeter of wall sleeve with
resilient caulk such as silicone.
5. Finish any uncompleted electrical and/or plumbing
con­nections.
Outdoor Louvers
Two styles of exterior louvers are available. The flush
stamped louver is a one-piece stamped aluminum type that
is finished natural and clear anodized (Figure 26). Attractive,
rugged architectural louvers (Figure 27) are extruded aluminum and are finished natural and clear anodized (optional
colors are also available).
free air discharge of condenser airflow. A louver design that
restricts the passage of condenser air or causes condenser air
to be recirculated can dramatically alter the performance of
the unit. Unit capacity and efficiency may be decreased and
fan motor and compressor life can be shortened.
If the louver does not meet the requirements set out above
or it is only marginally acceptable, then a drawing will be
required for factory evaluation. If acceptance cannot be
determined by the drawing, then a sample of the proposed
louver must be sent to the factory for testing and certification. The sample sent for testing must be at least 16" high by
42" wide.
Typical Louver Design
Figure 28 illustrates some typical louver designs.
The “X” dimension represents the narrowest dimension
through which air must pass. The “Y” dimension represents
the increment of rise between the blades. To calculate the
percentage of free area, divide dimension “X” by dimension
“Y” (see Example).
Figure 28: Louver Designs
Figure 26: Flush Stamped Louver
Figure 27: Architectural Louver
Example:
Free Area % = YX x 100
Where X = .7
Y = 1.0
Free Area % = 1.07 x 100 = 70%
IMPORTANT!
Louvers by others are acceptable as long as they meet factory specifications. They must have a minimum free area of
70% or a pressure drop not exceeding .05 in. w.g. at 300 fpm
face velocity and a blade design that will not cause recirculation of condenser air.
Note: A Flush Stamped Louver cannot be used with a
recessed louver wall sleeve. Recessed Louver is
special order. Contact factory for more information if
necessary.
Free area is defined by ASHRAE as the minimum area of the
openings in an air inlet or outlet through which air can pass.
Have your local Daikin McQuay representative evaluate
the application of special louvers or building facade treatments that may affect normal operation of the unit or restrict
IM 934-5
Air flow required for PTAC units must not be restricted by exterior plants or walls. Plants or shrubs must not be planted in
close proximity to the outside grille of the PTAC unit. Vegetation planted too close to grilles will cause discharge air to be
recirculated, thereby increasing electrical consumption. Warranty will be voided if it is determined that the compressor life
is shortened from overheating due to close proximity of outside
obstructions.
Note: Discharge air restrictions include, but are not limited to:
•
•
•
•
Vegetation
Concrete walls or barriers
Overhangs that do not allow discharge air to rise
Installation of bug screen of any kind
Page 19 of 48
Installing Louver(s)
1. Remove louver and mounting hardware from the
shipping carton.
2. Remove temporary cardboard weather panel from wall
sleeve.
3. Make a temporary handle by looping a piece of flexible
wire or heavy cord through the louver. This enables
the installer to keep a firm grasp on the louver when
installing from inside the room.
4. Angle the louver through the opening at the rear of the
wall box, then pull the louver back to the wall sleeve
flange so that the louver studs pass through the holes in
the flange.
5. Attach washers and nuts and secure louver in place.
6. If the heating/cooling chassis is not to be immediately
installed, replace the weather panel.
Installing Chassis
Proper installation of the heating/cooling chassis is extremely important to the proper operation of the unit. Whether the
wall sleeve has been separately shipped or shipped with the
chassis, proper installation is as follows:
WARNING
The chassis weighs approximately 150 lbs. Use blocking and
lifting devices. Do not raise over any body parts.
1. Remove shipping carton and inspect for any shipping
damage. Report any found to the carrier.
2. Save shipping carton to cover installed conditioner until
construction is complete.
3. Check nameplate data on chassis to insure that the
correct job site distribution has been made with respect
to heating/cooling capacities. Generally, corner rooms
require larger capacities.
WARNING
Improper electrical supply can cause property damage, severe
personal injury or death.
4. Set front panel and air filter aside.
5. Remove chassis from carton by pulling evenly on
substantial portion of unit.
CAUTION
Do not lift by pulling on the tubing. Tubing can crack or bend
damaging the unit.
6. If wall sleeve has been previously installed, remove
temporary cardboard weather panel.
7. If louver has been previously installed, remove
temporary cardboard weather panel.
8. Place Tinnerman clips on wall sleeve. Clips and
mounting screws enclosed in a bag attached to the top of
the condenser housing (Figure 29).
9. Rotate indoor and outdoor fans to be sure they are free of
obstruction.
10.Check all fasteners to make certain they did not loosen
during shipment. Do not adjust bolts holding down
compressor; they are factory installed.
11.Do not lubricate motors before start-up. Motors are
permanently lubricated by the manufacturer.
Figure 29: Chassis Installation (Slope Top Unit Shown)
Tinnerman Clips
Wall Sleeve
Left end view
Chassis
Wall Sleeve Rails
(See Note 21 Above)
Damper & Damper Actuator
Page 20 of 48 Screws (4)
IM 934-5
Equipment Start-up
Initial start-up of the Incremental® conditioners by experienced personnel is usually the responsibility of the installing
contractor. This start-up consist of inspecting and operating
the equipment for all functions at the time of initial installation and making necessary adjustments. It also includes
demonstrating its proper operation to the owner or his agent,
by their signature at the bottom of Form No. 13F-1206,
located on page 22
Note: That unless otherwise specifically agreed to in
writing, Daikin McQuay includes no field labor, startup service or the like in the price of its equipment.
After the equipment leaves the factory, it may become
damaged or maladjusted during transportation or on the
job. Sometimes wires are disconnected accidentally or fan
motors move on their bases due to rough handling, causing
fans to strike. The correction of such conditions is part of
start-up.
CAUTION
Before starting equipment, make certain that:
1. Correct voltage has been supplied to the equipment.
2. The electrical plug from the control box has been inserted into the receptacle.
During Start-up (applies only to standard equipment):
Note: Direction of conditioner air may be adjusted by
repositioning the discharge grille to change airflow
pattern in a room. The building superintendent or
assistant manager should be requested to make any
changes.
IM 934-5
Page 21 of 48
PTAC Startup Report–Audit
Job Name __________________________________________ City ________________G.O. # ____________
Installer __________________________________________________________________Total No. of Units_____
Date of Final Inspection and Start-up ________________________________________
Unit Type
□APTAC 16 × 42 □Type K
□APTAC 16 × 44 □Type J
□Enersaver
Manufacturers’ Representative Name ___________________________________
Name of Maintenance Manager Instructed ___________________________________Other__________________
Essential Items Check
A. Voltage Check _____________ Volts (measured)
B. Yes No
Condition
Yes
No
Condition
□ □ Filters Clean
□ □ Operates in Heating
□ □ Evaporator Coils/Drain Pans Clean □ □ Operates in Cooling
□ □ Wall Boxes Sealed To Wall, No Leaks □ □ Operates in Fan Only (if so equipped)
□ □ Wall Box Pitch Satisfactory
□ □ Hi-Lo Fan Speed Operational (if so equipped)
□ □ Air Discharge Free of Obstruction □ □ Fans Rotate Freely Without Striking Fan Housing
□ □ Condenser Air Free of Obstruction □ □ Cycle/Continuous Fan (if so equipped)
□ □ Other Conditions Found: ___________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
Note: “No” answers above require notice to installer by memorandum (attached copy).
Please include any suggestions or comments: _______________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
Above System is in Proper Working Order FOR INTERNAL USE
Release:
Date
SM ______________
CTS _____________
Sales Representative SignatureT________________
Customer Signature
Service Manager Approval
Page 22 of 48 Date
Form No. 13F-1206
IM 934-5
Controls
Table 1: Keys and Indicators Labels
Standard (Non-programmable) Digital
Touchpad Control
7 Push Buttons
ON/OFF, FAN SPEED, MODE
FAN MODE, SLEEP
Temp buttons:
for
Temp UP and
for Temp DOWN
9 LED Indicators
SLEEP, COOL, COOL/DRY, FAN, HEAT, HIGH, LOW, CYCLE, CONT.
Figure 30: Standard Digital Touchpad ControlApplication
LED 2 Digit Displays No Label
The PTAC Digital Control is used to control a PTAC Unit
that includes both an integral air conditioner and a source of
heat.
The Digital Control is operated with a Touchpad.
Inputs and Outputs
• Indoor coil sensor, (ICS)
• Outdoor coil sensor, (OCS)
• Indoor air sensor, (IAS)
• Outdoor air sensor, (OAS)
• Remote T’stat, T’STAT (RCWYBG)
• Heat Fan Lock Out (HFLO)
• Power supply, (24VAC)
• Line voltage input, (L1, L2)
• Indoor fan standby voltage, (L1STB L2STB)
• Control selection, (LUI, T’STAT
• Model selection, (AC/E, HP, HP/E)
• Time delay bypass, (TEST)
• Indoor off fan cycle, (FAN, OFF CYCLE–10, 20, 30, 1 HR)
Outputs
• Compressor output, COM
• Indoor fan, BLOWER LO, HI
• Outdoor fan, OUTDOOR FAN
• Electric heater, ELE
• Reversing valve, REV VALVE
Figure 31: Standard Digital Control Indicators
LED
2-Digit Display
9- LED
Indicators
7- Push Buttons
User Interface
The user will by default control the Electronic Controller via
the touchpad. The user can select with a jumper for the unit
to receive commands from a Remote Thermostat.
IM 934-5
Display Function Legend
Tr = Room Temperature
hI = High Room Temperature
Lo= Low Room Temperature
LA= Low Ambient Lockout
= Secondary (Slave) Unit Touchpad Display - Indicates
Unit is Controlled by a Master. Occurs when Slave
“Control Select” Jumper is on SEC Pins
rT = Remote Thermostat Control
tP = Touchpad Control
t = Time
Ts = Temperature Setpoint
Rf = Room Freeze Condition
CF= Coil Freeze Protection
F = Fahrenheit
C = Celsius
LC= Control Lockout Mode
Remote Thermostat Control
The Remote Thermostat can be any thermostat that can
interface with an electronic thermostat via RCWYBG
terminals. The Control Selection jumper must be in T’STAT
position. During a call the remote thermostat will pass R
back to the controller on a respective terminal. The push buttons on the touchpad become inactive in the remote thermostat mode, EXCEPT in T'STAT mode, the fan speed can be
changed at the Touchpad and the fan mode is dictated by the
Remote t'stat. However, the control pad LED display will
indicate the mode of operation, and the room temperature.
Note: In terms of outputs, there are two types of
thermostats: relay contacts and solid state. If you
open the thermostat and don’t see relays then it must
be solid state.
Manufacturers of solid state output thermostats
include loading resistors on their installation kits.
They are of 560 Ohm and 3W value. These resistors
are meant to load thermostat solid state outputs
in order for the output voltage to be either 0 or
24VAC, i.e. no floating voltage. These resistors are
connected from W, Y, G to common (C), respectively.
You can wire any type of 24Vac thermostat straight into
the REMOTE T’STAT connector of PTAC control boards,
667997102, 667997203 and 667997303 (Basic, Premium
and Auto-Changeover models) and the control boards will
recognize the signals from them.
Page 23 of 48
Operation
Memory Recall
The digital control shall start with the last settings used prior
to power down. These settings are saved in a non-volatile
memory. Factory set mode is OFF.
On/Off Triggering
Control can be turned On/Off via LUI, Remote T’stat, or
Sleep feature. The control will show the temperature set
point when the mode is Cool, Cool Dry, or Heat. The display
will be blank in Fan mode.
1. On/Off triggering with LUI
Control shall turn On or Off when the On/Off button is
pressed in LUI. Once turned on control shall start on the
last mode used before it was turned Off.
2. On/Off triggering with the Remote T’stat
Control shall be turned On if it was Off from the Remote
T’stat when it is set up to be controlled by a Remote
T’stat. A call for heat or cool from the Remote T’stat will
be used to turn the control on. Control remains on until
manually turned Off.
3. On/Off triggering with the Sleep feature
Sleep feature works in combination with the Timer
setting. Sleep time setting shall be user adjustable from
1 to 15 hours via the Touchpad. The timer will count
down and when it reaches “0” it will turn the control Off
if control was previously On and vice versa, if it was
Off it will turn On after time expires. As mentioned in
protections section of this spec the Sleep operation is
overridden by room freeze protection.
Control Off
When the control is in the Off Mode, relay outputs will be
disabled with the exception of the indoor fan (blower). It
will stay on to meet the Hot Keep specification. Indicator
LED’s are all off.
Temperature Range
The maximum operating temperature range is selectable via
the Touchpad and is 60°F to 85°F with the limits included.
The Remote Thermostat selectable operating range is 60°F
to 90°F with limits included. The range is set in the Set-up
menu.
Indoor and Outdoor Fan Operation
The indoor fan can be set to operate on High or Low speed
with the Fan Speed Button on the touchpad. It can also be set
for Continuous or Cycle operation on the touchpad. When
set for Continuous, the “CONT” LED will be on and the fan
will run continuously. When set for Cycle, the “CYCLE”
LED will be on and the fan will turn on at a call for heat or
cooling.
Page 24 of 48 Fan Cycle Operation
On a call for Heating or Cooling, the indoor fan and the
heating source or the compressor will be activated. When the
call is satisfied and the heating source or the compressor is
deactivated, the indoor fan will repeatedly run for 2 minutes
on and the number of minutes selected on the PC Board off,
until the next cut-in cycle. The number of cycles with timing
as described above is determined based on the OFF FAN
CYCLE jumper setting.
Remote T’Stat Mode
The unit can be jumper configured to take commands from
a Remote Thermostat. The Remote Thermostat will call for
Heat and Cool through the electronic controller.
1. The Remote T’stat will control through the board the
work of the compressor, indoor and outdoor fans, the
reversing valve, and the heater
2. System will run in Cool mode when Y signal is high. In
cool mode compressor (therefore outdoor fan) shall turn
on
3. Cold start feature (see Modes of Operation – Cold Start),
Cool dry mode (see Cold Dry Mode) and Sleep feature
(see Sleep Feature) are not available in Remote T’stat
cool mode
4. In T'STAT mode, the fan speed can be changed at the
Touchpad and the fan mode is dictated by the Remote
t'stat.
System Select Operation Using Remote
Thermostat
System will run in Heat mode and engage certain outputs
based on the system selection (jumper) as described below
(see Standard Digital Control Board Wiring Diagram on
page 31).
AC/ELE
• If AC/ELE is selected then a signal on W terminal will
call for heating.
HP or HP/ELE
• If HP or HP/ELE is selected then signals on Y and B
terminals will call for heating.
NOTES: 1.Hot start and Sleep features are not available in Remote T’stat heat mode.
2.Control’s operation is subject to its own protection features when controlled by a Remote T’stat
3.Indoor fan mode and the speed will default to “cycle” and “high” when unit is controlled by Remote T’stat
4.The indoor fan is turned on when G signal is high. When there is no signal on G terminal then the indoor fan will be turned off.
IM 934-5
Control Lockout Feature
The control is placed in a lockout mode of operation when
Mode button is held pressed for 10 seconds. Display will
show “LC” to confirm Lockout Mode has been entered.
Once in this Lockout Mode the control board will not take
any commands at all. In Lockout, unit will continue to
operate with the same settings just prior to Lockout Mode.
This means the touchpad will no longer be able to pass
commands to the control. User’s set point will normally be
displayed. Any button pushed will bring “LC” on display for
five seconds.
To exit the Lockout Mode and return to normal (regular)
mode of operation, press the Mode button for 10 seconds.
Display will show “nL” for five seconds to confirm normal
mode has been resumed.
Cool Dry Mode
Select the Cool Dry Mode when the standard Cool Mode
does not provide sufficient dehumidification. In Cool Dry
Mode, the unit must run in Cool Mode for 12 minutes or
until the temperature differential between the room temperature and the set point is less than 2°F. This will also occur
after a Cold Start or a Mode change from Cool to Cool Dry.
During this time the fan will operate in the Mode and Speed
selected.
Until one or both of the above conditions are met, the control will determine which Dry Mode (Zone) is initiated based
on the temperature differential between the room temperature (Tr) and the temperature set point (Ts):
Note: Cool Dry is not available with Sleep Function.
Figure 32: If Tr - Ts > 4°F, operation will be in Zone A
Sequence of Operation
Cool Mode
In Cool Mode, the compressor will start if the temperature
at the space temperature sensor is 1°F or higher than the set
point. It will stop if the space temperature sensor is 2°F or
lower than the set point, subject to timing requirements.
In the Cool Mode, the indoor fan will operate according to
the user settings for Fan Mode – Continuous or Cycle and
Speed.
Cold Start
Cold start is initiated when the control has not called for
cooling for more than two (2) hours or during a poweron-reset. During cold start, the set point is lowered by 4°F
(Tset-4°F) if the differential calls for cooling. The unit will
operate in cold start until the new set point is satisfied (+
or – 1°F) or until the unit has run in cold start for at least 20
minutes. After one or both conditions are met, the set point
will be reset to the user setting and the unit will run in the
regular cool mode.
The indoor fan will operate according to the user settings for
mode – Continuous or Cycle and Speed.
Cold start is not available with the Sleep feature.
Sleep Function
Sleep time is adjustable by the user from 1 to 15 hours in
one (1) hour increments in a closed loop. The sleep time is
adjusted and set via the touchpad and by pressing the Sleep
Button repeatedly. On the touchpad, the display will show
the set time in numbers for five (5) seconds. Before the sleep
time expires, the setting can be adjusted above the number of
hours passed by pressing the Sleep Button. Pressing the On/
Off Button can terminate the Sleep Mode.
A changeover from Heat to Cool or another Mode will reset
the Sleep Timer.
The Sleep Function will be deactivated by pressing the
power-on-reset or any button (except sleep) on the touchpad
or the Remote Control.
IM 934-5
Compressor
On
Off
t
Low Fan
On
Off
t
*
12 mins.
* = Zone Determination Time
Figure 33: If 2°F < Tr - Ts < 4°F, operation will be in Zone
B
On
Compressor
Off
t
8 mins.
4 mins.
On
Low Fan
Off
t
30 secs.
30 secs.
Page 25 of 48
Figure 34: If 0°F < Ts - Ts < 2°F, operation will be in
Zone C
On
Compressor
Off
t
6 mins.
6 mins.
On
Low Fan
Off
t
30 secs.
30 secs.
*
* = Zone Determination Time
Figure 35: If Ts - Tr > 5°F, operation will be in Zone D
On
Fan
Off
t
Compressor
On
Off
*
12 mins.
t
* = Zone Determination Time
The other temperature ranges are dead bands for zone
stability.
Heat Mode
Unit will call for heating based on the type of the heat source
it has: hydronic or electric.
1) Hot Start
Hot Start is possible when the control has not called for
heat in more than (2) hours or during power-on-reset.
During Hot Start, the user’s set point is raised 4°F (Ts +
4°F). The unit will only call for heat if room temperature
differential calls for heat.
The unit will continue in Hot Start Mode until the new
set point is satisfied (with a 1°F differential) or unit has
run for at least 20 minutes. After one or both conditions
are met, the set point will be reset to the user’s setting
and the unit will run in regular heat mode. Hot start is not
available with the Sleep feature. The fan will operate per
the Fan Mode and Speed setting.
Page 26 of 48 2) Hot Keep
In Hydronic Heat: When the water valve closes, the
indoor fan will operate per the user mode (Constant or
Cycle) and speed setting.
Heat Fan Lock Out Control: When the unit is in the Heat
Mode, but when hot water or steam is not available, it prevents the indoor fan from operating. The indoor fan will only
operate in the “Fan Only” and “Cool Modes”.
In Electric Heat: When the heater cuts out the indoor fan
will continue to run for 15 seconds at set speed regardless of
“On or Off” mode.
3) Sleep Function
Sleep time is user adjustable from 1 to 15 hours in one
hour increments in a closed loop via the touch pad by
pressing the Sleep button repeatedly. The Sleep Mode
can be terminated by pressing the On/Off button.
The Sleep Function will lower the temperature setting with
time. Changing the Mode or a changeover from Heat to Cool
will reset the Sleep Timer.
The Sleep function will be deactivated by Power-on-reset or
by pressing any button on the Touchpad except Sleep.
4) Fan Mode
In the Fan Mode, the fan will operate continuously at the user’s speed setting. The compressor and outdoor fan will not operate. In single motor units, the outdoor fan will run along with the indoor fan.
Standard or Programmable Digital
Touchpad (LUI) Control Set-Up – Mode
Selection
To enter the Set Up Mode, simultaneously press the Up and
Down buttons for 5 seconds. To change settings, press the
Up or Down button. To move from one screen to another,
press the Mode button.
To exit Set Up, press the Up and Down buttons simultaneously for 5 seconds or control will automatically exit Set Up
in 15 seconds.
Settings within the Set Up Mode are as follows:
1) Temperature Scale Selection
Once in the Set Up Mode, the temperature scale will be
displayed. To change the temperature scale to degree
Celsius, press the Up or Down button. The default setting
is "F", degrees Fahrenheit.
2) Temperature Limit Selection
To advance from Temperature Scale Selection to
Temperature Limit Settings, press the Mode button once.
To set the Cool Minimum set point, press and hold Fan
Cycle button, and adjust the setting with the Up or Down
buttons. The minimum setting is 60°F.
3) To advance from Cool Minimum Set Point to the Heat
Maximum set point, press the Mode button once.
To set the Heat Maximum set point, press and hold Fan
Speed button and adjust the setting with the Up or Down
buttons. Maximum setting is 85°F.
IM 934-5
The Display will show the upper operating limits first. The
default settings are Cool min. = 60°F and Heat max. = 85°F.
4) Fresh Air Damper Control
To advance from Heat Maximum Set point, to Fresh Air
Damper Control operation, press the Mode button once.
Using the Up and Down buttons, toggle between "AU"
for Automatic and "CL" for (forced) Closed.
The Fresh Air Damper will operate when the following
conditions are met:
A. Damper setting in the touchpad set-up mode is “AU”
(automatic) AND
B. Indoor fan motor turns on AND
C. Outdoor Air Sensor (OAS) temperature is greater than
40ºF but less than 90ºF AND
D. Indoor Air Sensor (IAS) temperature greater than 50ºF.
This control can be overridden by changing the damper setting in the set-up mode to “CL” (Close).
Optional Indoor Air Quality Boost Fan
The IAQ Boost Fan will operate in conjunction with the
Fresh Air Damper and increase the volume of fresh air to
90 CFM. The Fresh Air Damper and Boost Fan will operate
when the following conditions are met:
A. Damper setting in the touchpad set-up mode is “AU”
(automatic) AND
B. Indoor fan motor turns on AND
C. Outdoor Air Sensor (OAS) temperature is greater than
40°F but less than 90°F AND
D. Indoor Air Sensor (IAS) temperature greater than 50°F.
This control can be overridden by closing the damper and
turning off the Boost Fan, by changing the damper setting in
the Set-up Mode to “CL” (Close).
5) Indoor Air Sensor Reading
To advance from Fresh Air Damper Control, Heat pump
or Electric Heat operation to Indoor Air Sensor Reading,
press the Mode Button once. The display will show
return air temperature.
6) Indoor Coil Sensor Reading
To advance from Indoor Air Sensor Reading to Indoor
Coil Sensor Reading, press the Mode Button once. The
display will show the indoor coil sensor temperature.
7) Outdoor Air Sensor Reading
To advance from Indoor Coil Sensor Reading to Outdoor Air
Sensor Reading, press the Mode Button once. The display
will show the Outdoor Air Sensor temperature.
8) Outdoor Coil Temperature Reading
To advance from Outdoor Air Sensor Reading to Outdoor
Coil Temperature Reading, press the Mode Button once. The
display will show the Outdoor Coil termperature.
Figure 37: Outdoor Air Sensor Location
Outdoor Air Sensor
(OAS)
Thermistor Error Codes and
Conditions
Refer to "Fault and Protection Codes for Applied PTAC
Control Board" on page 42
The system treats a sensor open or short as extremely cold
or hot and reacts accordingly. The exception is the room air
sensor, in which case the system will turn off. When the fault
is corrected by replacement or repair, the respective error
code will clear from the display (Table 2).
Table 2: Failure Code and Condition
Thermistor Sensor
Room Indoor Coil > 140°F or
E1
< - 50°F for > 2s or
> 176°F for > 2s or
E2
Open or Close
< - 50°F for > 2s or
Outdoor Air
> 176°F for > 2s or
Error Code
Open or Close
Condition
< - 58°F or
E4
Open or Close
Figure 36: Indoor Air and Indoor Coil Sensor Locations
Indoor Coil
Sensor (ICS)
Indoor Air
Sensor (IAS)
IM 934-5
Compressor Random Restart
When power is interrupted, a random compressor restart
delay of 0 to 2 minutes is initiated. In the Cool Mode only,
the compressor will start operating only after the random
delay plus 3 minutes (minimum off time for thermostat, ie.
2 to 5 minutes). Random delay is used only during system
startup or reset.
Page 27 of 48
Unit Protective Logic
Compressor Minimum Run Time
For thermostat-controlled running cycles, the compressor
will have a minimum run time of 90 seconds. The compressor can be stopped at any time if the system is switched to
any Mode, except the Cool Dry Mode.
Compressor Minimum Off Time (delay on break)
When compressor is under the thermostat control, it has a
3-minute delay before restarting when it has cycled off.
Indoor Coil Freeze Protection
In Anti-Freeze Mode, the compressor and outdoor fan will
be stopped and the display will show “CF”. The compressor
and outdoor fan can be started only if the following conditions are met:
1. after the 3 minute delay on break, AND
2. the indoor coil reaches 49°F or above and remains there
for at least 1 minute, OR
3. another Mode is selected.
The system is in Anti-Freeze Mode when the following
conditions are met:
1. The control is in either Cool or Cool/Dry Mode.
2. The indoor coil reaches 32°F and stays there for at least
five (5) minutes.
3. The compressor has run for at least 90 seconds.Sleep
Timer is overridden during this operation.Anti-freeze
Protection is active in all modes of operation and when
the control is Off.
Room Freeze Protection
When room temperature falls below 41°F, the electric heater
is controlled, or the hydronic valve is opened and the indoor
fan operates on High Speed. The compressor and outdoor
fan are off and the display will show “rF”. The electric
heater is controlled, or hydronic valve will close when the
room temperature rises back to 50°F. During room freeze
conditions, the temperature setting can be adjusted with the
touchpad. Fan modes and Sleep Operation are overridden
during Room Freeze Protection. Room Freeze Protection is
active in all modes of operation and when control is off.
Temperature Limiting
When the room temperature drops 5°F below minimum
set point, the display will indicate “Lo.” When the room
temperature rises 5°F above maximum set point, the display
will indicate “hI.” Alarm indications of 5°F above or below
set point will be consistent with the set up mode settings for
minimum and maximum temperatures.
Page 28 of 48 Temperature Limit Settings
1 To adjust the lower operating temperature limit (cool
minimum set point) press and hold Fan Mode button
and adjust the setting with Up or Down buttons. The
minimum setting is 60ºF (15ºC).
2. To adjust the upper operating temperature limit (heat
maximum set point) press and hold down Fan Speed
button and adjust the setting with Up and Down buttons.
The maximum setting is 85ºF (30ºC). When control
selection is set for “T'STAT,” the maximum setting can
go up to 90ºF (32ºC).
3. The upper operating temperature limit will be displayed
first.
4. Default settings are: Cool minimum 60ºF (15ºC) and
Heat maximum 85ºF (30ºC).
Electrical Service Considerations
All wiring should be done in accordance with all local and
National Electrical Code requirements. The conditioners are
supplied as follows:
Electric Heat Unit
1. 208V and 230V models are supplied with a power
cord which will exit from beneath the conditioner on
the control side. The cord has a usable length of 72"
(457.2mm) from where it exits the conditioner. The use
of an extension cord is not recommended. Time delay
fuses are recommended to avoid nuisance tripping. The
receptacle is generally mounted beneath the conditioner
on or recessed in the wall so that it is concealed by the
conditioner over hang. The space under the conditioner
must be at least 3" (76mm) high.
2. An electrical subbase is available for 208V and 230V
units and contains a junction box for a field-mounted
receptacle All electrical connections are made within the
subbase, thus eliminating the need for a wall mounted
receptacle.
The subbase is available in 3" (76mm) or 4" (102mm)
height and can be furnished with factory-mounted fused
disconnect option.
3. On all 265V models, an electrical subbase is required.
The chassis is supplied with a “short cord” which is
just long enough to plug into the subbase. A plug cord
cover is also furnished with the subbase to make the
interconnecting cord inaccessible as required by the
National Electrical Code. The conditioner is marked with
the minimum circuit ampacity and maximum fuse size.
IM 934-5
Premium (Programmable) Digital
Touchpad Control Features
LED with
Program
Setting
Display
9-LED
Indicators
8- Push
Button
Display
Inputs
User Interface
The user will by default control the Electronic Controller via
the touchpad. The user can select with a jumper for the unit
to receive commands from a Remote Thermostat.
Table 3: Keys and Indicators Labels
ON/OFF, FAN SPEED, MODE,
FAN MODE, SLEEP, PROG-ON/OFF
8
Push
Buttons
Temp buttons:
for
Temp UP and
for Temp DOWN
9 LED Indicators
SLEEP, COOL, COOL/DRY, FAN, HEAT, HIGH, LOW, CYCLE, CONT.
LED 2 Digit Displays No Label
Application
The PTAC Digital Control is used to control a PTAC Unit
that includes both an integral air conditioner and a source of
heat.
The Digital Control is operated with a Touchpad.
Inputs and Outputs
• Indoor coil sensor, (ICS)
• Outdoor coil sensor, (OCS)
• Indoor air sensor, (IAS)
• Outdoor air sensor, (OAS)
• Remote T’stat, T’STAT (RCWYBG)
• Heat Fan Lock Out (HFLO)
• Power supply: (24VAC)
• Line voltage input, (L1, L2)
• Indoor fan standby voltage, (L1STB L2STB)
• Control selection: (LUI, T’STAT
• Model selection: (AC/E, HP, HP/E)
• Time delay bypass, (TEST)
• Indoor off fan cycle: (FAN, OFF CYCLE–10, 20, 30, 1 HR)
Outputs
• Compressor output, COM
• Indoor fan, BLOWER LO, HI
• Outdoor fan, OUTDOOR FAN
• Electric heater, ELE
• Reversing valve, REV VALVE
Display Function Legend
Tr = Room Temperature
hI = High Room Temperature
Lo= Low Room Temperature
LA= Low Ambient Lockout
= Secondary (Slave) Unit Touchpad Display - Indicates
Unit is Controlled by a Master. Occurs when Slave
“Control Select” Jumper is on SEC Pins
rT = Remote Thermostat Control
tP = Touchpad Control
t = Time
Ts = Temperature Setpoint
Rf = Room Freeze Condition
CF= Coil Freeze Protection
F = Fahrenheit
C = Celsius
LC= Control Lockout Mode Turned ON
nL= Control Lockout Turned OFF
Premium, Programmable Digital Touchpad
with Automatic Changeover from Cooling
to Heating & Heating to Cooling
AUTO
Available with the Programmable LUI (668003802) and Premium Board (667997303) only. The Auto-Changeover board
has a new control set with a touchpad label that shows,
“AUTO”. The Auto Changeover control provides:
• Auto changeover from heat to cool and vice versa
• LED's from top down that read: Sleep, Cool, Auto, Fan,
and Heat
IM 934-5
Page 29 of 48
AUTO Non-Programmable Mode:
1.2
• Display shows both HEAT and COOL icons
• Temperature set point displays between the HEAT and
COOL icons
• Setpoint is adjusted with Up and Down arrows
1.3
• Heating initiates when the room temperature falls one
degree below the thermostat setpoint. Heating terminates
when the room temperature reaches two degrees above
the setpoint
Adjust the time by pressing
and
buttons. By
holding pressed
or
buttons, time will change
in 15 minutes increments or decrements respectively.
AM and PM will show in rotation.
By pressing FAN MODE button, move to the
confirmation day of the week. Numbers represent days of the week, Monday being 1 and so forth.
TODAY will flash on display. Adjust the number that
represents the day of the week by pressing
and
buttons:
• Cooling initiates when the room temperature reaches one
degree above the thermostat setpoint. Cooling terminates
when the room temperature falls two degrees below the
setpoint
AUTO Programmable Mode:
• HEAT and COOL icons alternatively flash with their
respective programmed setpoints
• The system engages cooling and heating automatically to
maintain respective setpoints according to system model
selection
• The 2-degree gap between setpoints represents the
deadband and is necessary to prevent unecessary
switching between heating and cooling
The 2 degree deadband provides the following:
• Heating activates when the room temperature is one
degree below the thermostat setpoint plus the 2 degree
deadband.
• Cooling activates when the room temperature is one
degree above the thermostat setpoint plus the 2 degree
deadband
Figure 38: Keys and Indicators Labels
ON/OFF, FAN SPEED, MODE,
FAN MODE, SLEEP, PROG-ON/OFF
8 Push Buttons
Temp buttons:
for
Temp UP and
for Temp DOWN
9 LED Indicators
SLEEP, COOL, AUTO, FAN, HEAT, HIGH, LOW, CYCLE, CONT.
LED 2 Digit Displays No Label
TODAY
AM
9:45
1.4
Exit the clock set menu by pressing FAN MODE
(TIME) and FAN SPEED (DAY) simultaneously for
5 seconds
Configuration
The configuration mode is meant for temperature scale setting, limits for minimum and maximum operating temperatures and displaying sensor readings. To enter the configuration mode hold pressed
and
buttons for 5 seconds.
Moving from one screen to another and rolling over is done
by pressing Mode button.
2.1 Once in the configuration mode, the default
temperature scale will be displayed as shown below.
Toggle the temperature scale to degree Celsius by
pressing either
or
button:
2.2
To adjust the lower operating temperature limit (cool
minimum set point) press and hold the Fan Mode button, and repeatedly press
or
buttons. COOL
and the setting will be displayed as shown below. The
minimum and factory default setting is 60°F (15°C).
An example of what can be displayed:
Premium (Programmable) Digital
Touchpad Control
Clock Set Menu
1.1
To set the time and day of the week, press FAN
MODE and FAN SPEED buttons simultaneously for
5 seconds. Time will be displayed first:
AM
9:45
Page 30 of 48 IM 934-5
2.3
To view the upper operating temperature limit (heat
maximum set point) press MODE button. HEAT will
be displayed. An example of what can be displayed:
3.5
To advance to the next screen, press SLEEP
( ) button. Starting time will flash. Adjust the
starting time by pressing
or
buttons.
DAY 1
AM
8:00
MORN
2.4
2.5
•
•
•
•
2.6
3.1
3.2
3.3
To adjust the upper operating temperature limit (heat
maximum set point) press and hold the Fan Speed
button, and repeatedly press
or
buttons. The
max and factory default setting is 85°F (30°C). When
Control selection jumper on control board is set for
“T’STAT,” the max setting can go up to 90°F (32°C).
By pressing MODE button repeatedly from the
previous screen, the following will be displayed in
sequence:
Indoor air sensor reading
Indoor coil sensor reading
Outdoor air sensor reading
Outdoor coil sensor reading
Exit the configuration mode by pressing
and
buttons for 5 seconds
The touchpad of the electronic controller can be
programmed for four time periods, MORN, DAY,
EVE, and NITE that are customizable for each day
of the week. Each period will have a start time, heat
and cool temperatures. The unit will monitor the day
and time, while maintaining the specific conditions
for each period of the day. During programming, the
item that is flashing is adjustable.
To enter the program menu, press SLEEP ( ) and
MODE ( ) buttons for 5 seconds.
By pressing SLEEP ( ) display will show the day
screen as shown below. Press
or
button to
change the day to program. To advance to the next
screen, press SLEEP ( ) button. To return to the
previous screen, press MODE ( ) button.
DAY 1
3.4
By pressing
will change.
or
button, the period of the day
MORN
3.6
To advance to the next screen, press SLEEP
( ) button. Heat temperature will be displayed.
Adjust the heat setting with
and
buttons.
DAY 1
HEAT
AM
8:00
MORN
3.7
70
o
To advance to the next screen, press SLEEP
( ) button. Cool temperature will be displayed.
Adjust the cool setting with
and
buttons.
COOL
DAY 1
AM
8:00
MORN
78
o
To program the thermostat for each period of the day,
repeat steps 3.3 through 3.7.
Further, the thermostat can be programmed for each
individual day of the week or use the SimplesetTM
feature as described below.
3.9 Simpleset programming is a convenient method of
programming the thermostat. Once the entire Monday
(Day 1) schedule is set, Simpleset programming
will copy the Monday schedule to every day of the
week. After completing Monday schedule, “day 2”
will appear on the screen. Press Down button once
to get to “day 1.” By pressing Down button for 3
seconds, days of the week will count down from 7
to 1 and settings are memorized. Once the schedule
is locked in, go through each day of the week and
make changes as needed. This feature speeds up the
programming of the standard weekday/weekend
schedule.
3.10 To exit the program mode, press MODE ( ) and
SLEEP ( ) buttons simultaneously for 5 seconds.
3.11 After exiting the program mode, select the mode of
operation and activate the program mode by pressing
the PROG ON/OFF button.
3.8
NOTICE
After a power outage, programmed daily settings will be retained in memory. However, the clock must be reset to the
current time for the programmed daily settings to resume the
correct schedule of operation. See Clock Set Menu instructions
to reset the time and day of week.
IM 934-5
Page 31 of 48
Remote Wall Mounted Thermostats
Non-Programmable Thermostat Specs
Remote Thermostat Control
The remote thermostat can be any thermostat that can interface with an electronic thermostat via RCBWYG terminals.
The Control Selection jumper must be in T’STAT position.
During a call the remote thermostat will pass R back to the
controller on a respective terminal. The push buttons on the
touchpad become inactive in the remote thermostat mode.
EXCEPT in T'STAT mode, the fan speed can be changed at
the Touchpad and the fan mode is dictated by the Remote
t'stat. However, the control pad LED display will indicate
the mode of operation, and the room temperature.
Manual Changeover One-Stage Heat and Cool or
One-Stage Heat Pump
Note: In terms of outputs, there are two types of
thermostats: relay contacts and solid state. If you
open the thermostat and don’t see relays then it
must be solid state. Manufacturers of solid state
output thermostats include loading resistors on their
installation kits. They are of 560 Ohm and 3W value.
These resistors are meant to load thermostat solid
state outputs in order for the output voltage to be
either 0 or 24VAC, i.e. no floating voltage. These
resistors are connected from W, Y, G to common (C),
respectively.
You can wire any type of 24Vac thermostat straight into
the REMOTE T’STAT connector of PTAC control boards,
667997102, 667997203 and 667997303 (Basic, Premium
and Auto-Changeover models) and the control boards will
recognize the signals from them.
Wall mounted thermostats are available for the PDAE unit
in automatic or manual changeover styles. All include a
fan switch for constant “on” operation or “automatic” for
cycle operation with the compressor. When requested, all
necessary relays and transformers are factory mounted and
ready for attachment to field supplied low voltage wires. All
thermostats are 24-volt type and have dual Fahrenheit and
Celsius temperature setpoint scales.
NOTICE
Daikin McQuay Part No. 910116771 (1-Pk, White
with Wall Plate)
Simple to operate, single push button for one-stage heating
and cooling, or single stage heat pump. Zone compatible and
4- or 5 wire compatible (terminal “C” is optional for nonheat pump systems). System “heat-off-cool” switch and fan
“on-off” switch.
Specifications
Electrical Rating:
• 24 VAC (18 to 30 VAC)
• 1 amp maximum per terminal
• 3 amp maximum total load
• 30-minute power loss memory retention
Temperature Control Ranges:
• 45°F to 90°F, Accuracy: ± 1°F
System Configurations:
• 1 stage heat, 1 stage cool or single stage electric
heat pump
Terminations:
• R, C, W, Y, O, B, G
When using existing thermostats by others;
There are two basic types of thermostats manufactured today;
those with relay contacts, and those with solid-state triacs. If
you open the thermostat and don't see relays then you can
assume it to be solid state.
Manufacturers of solid state output thermostats include loading
resistors on their installation kits. These are of low Ohm value,
approximately 560 Ohm and 3W. The resistors are meant to
load the thermostat outputs in order for the output voltage to
be either 0 or 24VAC, i.e. no floating voltage. These resistors are connected from W, Y, G to common (C), respectively.
Therefore, if you are using existing solid-state thermostats, you
may have to add loading resistors for your PTAC controls to
work properly. Daikin McQuay thermostats do not require this
modification.
Page 32 of 48 IM 934-5
Wall-Mounted, 7, 5-2 & 5-1-1
ProgrammableThermostat Specs
Standard Auto or Manual-Changeover
Two-Stage Heat/ Two-Stage Cool Specs
Manual Changeover One-Stage Heat and Cool or
One-Stage Heat Pump
Daikin McQuay Part No. 910116774 (1-Pk, White with
Wall Plate)
Daikin McQuay Part No. 910116772 (1-Pk, White
with Wall Plate)
Specifications
Specifications
Electrical Rating:
• 24 VAC (18 to 30 VAC)
• 1 amp maximum per terminal
• 3 amp maximum total load
• 30-minute power loss memory retention
• Easy access terminal block
Temperature Control Ranges:
• 45°F to 90°F, Accuracy: ± 1°F
System Configurations:
• 1 stage heat, 1 stage cool or single stage electric
heat pump
Terminations:
• RC, RH, C, W, Y, O, B, G
Electrical Rating:
• 24 VAC (18 to 30 VAC)
• 1 amp maximum per terminal
• 4 amp maximum total load
• 30-minute power loss memory retention
• Easy access terminal block
Temperature Control Ranges:
• 45°F to 90oF, Accuracy: ± 1°F
System Configurations:
• Single or two-stage heat/cool
• Single or two-stage heat pump
Terminations:
• R, C, W1/O/B, Y1, W2, Y2, G
Optional Remote Sensor
Part No. 667720401 (Used in Conjunction with
Thermostat Part No. 910116774 Only)
The Fast, Easy Solution For Temperature Sensing
Problems.
• For tamper prone areas
• Poor airflow areas
• Troubled applications
• Foam gasket prevents drafts through wall opening
• Mounts to standard 2" × 4" outlet box
• 23/4"W × 41/2"H
IM 934-5
Page 33 of 48
Wireless Remote Control (Optional)
T9000 Wireless Temperature Control
The T9000 Wireless Temperature Control is designed to
provide precision temperature control without the installation labor and expense of wiring.
• Powered by AA batteries
• Mounts in any suitable location that will provide good
temperature control.
• Large LCD display provides the user with current
room temperature, set point temperature, time, program
interval, and other system status information.
The remote consists of 10 push-buttons
• Power:
Functions the same as the ON/OFF button on the
touchpad.
• Sleep:
Functions the same as the SLEEP button on the
touchpad.
Mode buttons
• Heat, Cool, Cool/Dry, Fan:
Performs the same function as the MODE button on the
touchpad and allows user to select the specific mode of
operation using only one button.
• Temp buttons
+,
–:
Functions same as the buttons on the touchpad and
allows the user to change the setpoint.
• Fan speed buttons (high & low):
Performs same function as the FAN SPEED button on
the touchpad and allows user to select the specific speed
using only one button.
ProgrammableNon-Programmable
Remote Control Node (RCN)
Used with the Wireless Temperature Control, the RCN
interfaces with specific HVAC equipment, and communicates with its thermostat using unlicensed 900 MHz, radio
frequency energy. Contact your local Daikin McQuay Representative for details.
Notes: The remote must be aimed in a line of sight of the
window in the upper right corner on the front panel,
at less than a 45° angle from center of the window.
Page 34 of 48 IM 934-5
Remote Mounted Thermostat Control
Considerations
The Remote Thermostat can be any thermostat that can
interface with an electronic thermostat via RCWYBG
terminals. The Control Selection jumper must be in T’STAT
position. During a call the remote thermostat will pass R
back to the controller on a respective terminal. The push buttons on the touchpad become inactive in the remote thermostat mode, EXCEPT in T'STAT mode, the fan speed can be
changed at the Touchpad and the fan mode is dictated by the
Remote t'stat. However, the control pad LED display will
indicate the mode of operation, and the room temperature.
Units that are furnished with remote mounted thermostats
should be wired as shown in Figure 39. Other considerations
for this arrangement are as follows:
1. When wiring the low voltage plug and receptacle
disconnect, provide enough wire to move harness out of
the way for chassis removal.
2. If subbase is used, a small hole must be drilled and
grommeted in the subbase front to allow passage of the
low voltage wires.
3. When using a programmable wall thermostat, connect it
to the terminal board remote thermostat plug. Refer to
the instructions furnished with the chosen thermostat.
Note: To allow Primary (Master) / Secondary (Slave)
operation, the primary board thermostat jumper must
be in the “T’STAT” position and the secondary boards
must be in the “SEC” position.
If secondary units are to be employed, see wiring
connections in Figure 39.
The number of secondary units that can be connected is
limited to 32 units.
Figure 39: Control Wiring to Allow Primary (Master) Secondary (Slave) Unit Connection
Note: Connect the Remote Thermostat only to the Master Unit.
IM 934-5
Page 35 of 48
Premium (Programmable) Digital
Control Board – Jumper Placement
1– Jumper Placement to Select System Module
(See Jumper Detail)
A–Place jumper across AC/HYD to select
Air Conditioner/Hydronic Heat.
B–Place jumper across AC/E to select
Air Conditioner/Electric Heat.
C–Place jumper across AC/HYD/E to select
Air Conditioner/Hydronic/Electric.
2– Jumper Placement to Select Fan Control:
A–When in Fan Cycle Mode, fan operates for 2 minutes.
Place jumper across 10, 20, 30, or 1 HR to select fan
cycle off minutes which will be overridden by the room
temperature.
3– Jumper Placement to Select
Controller Type:
A–Place jumper across LUI to select unit mounted touchpad
(Local User Interface).
B–Place jumper across SLAVE to select SLAVE Control by
a master unit.
C–Place jumper across T’STAT to select remote, wallmounted programmable, or non-programmable
thermostat.
4– Jumper Placement to Select
Hydronic Valve:
A–Place jumper across NO to select Normally Open
Hydronic Valve.
B–Place jumper across NC to select Normally Closed
Hydronic Valve.
Jumper Placement Detail
3
1
A
A
B
C
D
E
C
B
4
2
A
B
A
Wiring Diagram Legend
CT
=
DM =
CM =
IFM =
OFM =
HFLO =
OCS =
OAS =
ICS =
IAS =
LUI =
HYV =
REV =
Control Transformer
Damper Motor
Compressor Motor
Indoor Fan Motor
Outdoor Fan Motor
Heat Fan Lockout Sensor
Outdoor Coil Sensor
Outdoor Air Sensor
Indoor Coil Sensor
Indoor Air Sensor
Local User Interface
Hydronic Valve
Reversing Valve
EHC = Electric Heat Contactor
Page 36 of 48 IM 934-5
Standard (Non-Programmable)
Digital Control Board – Jumper
Placement
1– Jumper Placement to Select System Module (See
Jumper Detail)
A–Place jumper across AC/E to select Air Conditioner with Electric Heat.
2– Jumper Placement to Select Fan Control
A–When in Fan Cycle Mode, fan operates for 2 minutes.
Place jumper across 10, 20, 30, or 1 HR to select fan
cycle off minutes which will be overridden by the room
temperature.
3– Jumper Placement to Select
Controller Type:
A–Place jumper across LUI to select unit mounted touchpad
(Local User Interface).
B–Place jumper across T’STAT to select remote, wall
mounted programmable, or non- programmable
thermostat.
Jumper Placement Detail
3
1
A
B
C
B
A
2
A
Wiring Diagram Legend
CT
CM
IFM
OFM
OCS
OAS
ICS
IAS
LUI
REV
EHC
IM 934-5
=
=
=
=
=
=
=
=
=
=
=
Control Transformer
Compressor Motor
Indoor Fan Motor
Outdoor Fan Motor
Outdoor Coil Sensor
Outdoor Air Sensor
Indoor Coil Sensor
Indoor Air Sensor
Local User Interface
Reversing Valve
Electric Heat Contactor
Page 37 of 48
Digital Control Board with Standby
Power – Wiring Diagram
The standby power connections, L1 STBY and L2 STBY are
meant to run the indoor motor at a separate voltage from the
other motors, compressor and outdoor motor. When used as
such, the jumpers, JH1 and JH2, must be cut. This renders
L1 & L2 and L1 STBY and L2 STBY isolated from each
other.
If there is no need to run the motors at a separate voltage the
L1 = L1 STBY and L2 = L2 STBY. Therefore one voltage is
used to run all motors.
If the jumpers are accidentally cut, then the connections can
be spliced to substitute for the missing jumpers.
Table A
Wire Color Voltage
120V
WH
208V
RD
240V
OR
277V
BN
Legend
DM =
HYV =
CM =
IFM =
OFM =
HFLO =
OCS =
OAS =
ICS =
IAS =
LUI =
REV =
IR
=
C1
=
=
C2
C3
=
MP =
Damper Motor
Hydronic Valve
Compressor Motor
Indoor Fan Motor
Outdoor Fan Motor
Heat Fan Lockout Sensor
Outdoor Coil Sensor
Outdoor Air Sensor
Indoor Coil Sensor
Indoor Air Sensor
Local User Interface
Reversing Valve
IR Receiver Board (AP7810)
Indoor Motor Capacitor
Outdoor Motor Capacitor
Compressor Capacitor
Motor Protector
Note: The gray tinted areas in the wiring diagram; are options available only with the premium control board.
For the latest drawing version refer to the wiring diagram located on the inside of the controls access panel of the unit.
Page 38 of 48 IM 934-5
Digital Control Board without
Standby Power – Wiring Diagram
The standby power connections, L1 STBY and L2 STBY are
meant to run the indoormotor at a separate voltage from the
other motors, compressor and outdoor motor. When used as
such, the jumpers, JH1 and JH2, must be cut. This renders
L1 & L2 and L1 STBY and L2 STBY isolated from each
other.
If there is no need to run the motors at a separate voltage the
L1 = L1 STBY and L2 = L2 STBY. Therefore one voltage is
used to run all motors.
If the jumpers are accidentally cut, then the connections can
be spliced to substitute for the missing jumpers.
Legend
DM =
HYV =
CM =
IFM =
OFM =
HFLO =
OCS =
OAS =
ICS =
IAS =
LUI =
REV =
IR
=
C1
=
C2
=
C3
=
MP =
Table A
Wire Color Voltage
120V
WH
208V
RD
240V
OR
277V
BN
Damper Motor
Hydronic Valve
Compressor Motor
Indoor Fan Motor
Outdoor Fan Motor
Heat Fan Lockout Sensor
Outdoor Coil Sensor
Outdoor Air Sensor
Indoor Coil Sensor
Indoor Air Sensor
Local User Interface
Reversing Valve
IR Receiver Board (AP7810)
Indoor Motor Capacitor
Outdoor Motor Capacitor
Compressor Capacitor
Motor Protector
Note: The gray tinted areas in the wiring diagram; are options available only with the premium control board. For the latest
drawing version refer to the wiring diagram located on the inside of the controls access panel of the unit.
IM 934-5
Page 39 of 48
Maintenance (Scheduled)
Equipment Protection From The
Incremental conditioners are built to last. With proper care,
the unit should provide uninterrupted service for many years.
Scheduled maintenance of this equipment as described below, is the key to the equipment’s longevity.
Environment
A. Air filters must be cleaned at regular intervals. Twice
annually may be adequate in some areas while twice
monthly may be required in others. Areas with high
dirt and lint content or heavy usage of units require
more frequent filter maintenance than those areas of
relatively clean operating or low usage conditions. Unit
malfunction will occur if air filters are not kept clean.
Rinse filter with hot water and a mild detergent.
B. Daikin McQuay recommends that every year the chassis
be removed for a thorough checkup. This should be
completed as follows:
1. Unplug unit from power source.
2. Remove front panel.
3. Remove chassis from cabinet and move it to the
maintenance department. Replace with spare chassis or
weather plate.
4. Check all seals and insulation and repair as required.
5. Check all wiring and controls for hazardous conditions.
6. Thoroughly clean discharge grilles.
7. Cover motors and control module with water tight
material and wash evaporator coil, condenser coil and
base pan using hot water and a mild soap.
CAUTION
The metal parts of this unit may be subject to rust or deterioration in adverse environmental conditions. This oxidation could shorten the equipment’s useful life. Salt spray,
fog or mist in seacoast areas, sulphur or chlorine from lawn
watering systems, and various chemical contaminants from
industries such as paper mills and petroleum refineries are
especially corrosive.
If the unit is to be installed in an area where contaminants are likely to be a problem, special attention should
be given to the equipment location and exposure.
1. Avoid having lawn sprinkler heads spray directly in or on
the outdoor louver.
2. In coastal areas, the units must have the corrosion
protection package to maintain the warranty coverage.
Regular maintenance will reduce the buildup of contaminants and help to protect the outdoor section of the unit.
1. Frequent washing of the outdoor section, condenser fan
blade and condenser coil with fresh water will remove
most of the salt or other contaminants that build up in the
outdoor section of the unit
2. Regular cleaning of the cabinet with a good non-abrasive
polish will provide protection and keep it in good
condition.
3. A mild liquid cleaner may be used several times a year to
remove matter that will not wash off with water.
The best protection is frequent cleaning, maintenance
and minimal exposure to contaminant.
Residential and institutional cleaning compounds can cause
permanent damage to the packaged terminal unit. To avoid
damage to unit controls and heat transfer surfaces, do not
spray cleaning compounds onto the discharge grille, return
air opening, or unit controls. Normal cleaning can be accomplished by wiping the unit surface with a damp cloth. When
using cleaning compounds on carpets, floors or walls, turn the
unit off to avoid drawing potentially damaging vapors into the
package terminal unit.
8. Check condensate removal system and assure proper
operation. Pour at least two (2) cups of water into
evaporator drain pan and verify proper operation. Clean
condensate drain and clear weep holes located at the
bottom rear of wall sleeve.
9. Dry equipment thoroughly, especially electric parts and
installation.
10.Clean any rust spots with steel wool and paint with rust
inhibiting paint.
11.Clean insulation or replace if necessary.
12.Check insulation on refrigeration piping and replace if
necessary.
13.Check all fasteners and tighten as required.
14.Clean and oil damper door and linkage.
15.Test run chassis before reinstalling.
Page 40 of 48 IM 934-5
An inherent advantage of the Incremental system is that
failure of any part affects only one incremental conditioner
and does not interrupt the operation of the rest of the system.
A further advantage is that a failed part can be quickly and
easily replaced, thus minimizing the inoperative time of the
equipment. This is so, however, only if a replacement part
is quickly available. In order to replace a failed part quickly
and keep all incremental conditioners in good operating
condition, Daikin McQuay recommends that at the time
incremental conditioners are purchased, owners arrange for a
small stock of replacement parts.
Where an owner carries such a stock, immediate replacement of defective parts is possible. The defective part
can then be returned to Daikin McQuay warranty parts.
As long as it is still in warranty, it is repaired or replaced
and returned to the owner with out cost for shop labor and
material. Thus, the stock of replacement parts is constantly
replenished. Below is a list of the kinds of parts which
Daikin McQuay recommends to be carried in stock together
with the quantity of parts recommended per 100 incremental
conditioners installed.
Cooling Chassis............................................................... 2
Compressor Overload Device......................................... 2
Compressor Running Capacitor...................................... 2
Fan Motor. Capacitor....................................................... 2
Control Board.................................................................. 2
Thermostat....................................................................... 2
Control Relay (if used).................................................... 2
Damper Motor (if auto damper)...................................... 2
Electric Resistance Heater (if electric heat).................... 2
Touch-up Paint (1 pt. spray can)..................................... 2
For the current spare parts list, and applicable prices, see
your Daikin McQuay representative or write Daikin McQuay Service, P.O. Box 1551, Minneapolis, MN 55440.
Figure 40: Refrigeration Cycle
45°F. (7°C.)
R-410A (Liquid and Gas)
to Evaporator
80°F. (27°C.)
Room Air to Evaporator
Evaporator
120°F. (49°C.) Condenser Air
to Outdoors
Capillary
Restrictor
Condenser
110°F. (43°C.)
Liquid R-410A to
Capillary
95°F. (35°C.)
Outdoor Air to Condenser
60°F. (15.5°C.)
Conditioned Air to Room
60.3 psia (416 kPa)
& 60°F. (15.5C.)
to Compressor (Gas)
Hermetic
Compressor
418.3 psig (2884.1 kPa) R-410A to Condenser (Hot Gas)
Recommended Spare Parts
Refrigeration Cycle
Every motor-driven refrigeration system operates on the carnot cycle. A practical understanding of what goes on at the
various steps in this cycle can be a big help to the troubleshooting mechanic. Figure 41 illustrates the refrigeration
cycle. The diagram shows what occurs in each component of
a hermetically sealed system as used in all Daikin McQuay
Air Conditioning equipment. The temperatures shown are
typical of what they might be when the air entering the
condenser (outdoor temperature) is 95°F, (350 C) and the
temperature of the conditioned space is 80°F (270 C).
IM 934-5
Page 41 of 48
Fault and Protection Codes for Applied PTAC Control Board
Fault code
Description
Cause for the fault
Communication Error
1. Cable not plugged in properly on either LUI or relay board.
2. Defective cable.
CE
Sh
Missing Shunt E1
Problem with IAS
The user configurable shunt for System Select, Control Select Off Fan Cycle, and/or Hydronic Valve is missing or not placed properly.
Indoor Air Sensor missing or short.
E2
Problem with ICS
Indoor Coil Sensor missing or short.
E3
Problem with OCS
Outdoor Coil Sensor missing or short.
E4
Problem with OAS Outdoor Air Sensor missing or short.
E5
Problem with HFLO Sensor
HFLO Sensor missing or short on control board or heating medium >250ºF. Check for installation / connection of HFLO sensor. Should be on coil return line.
Protection Description
code
CF
Coil Freeze Protection
Rf
Room Freeze Protection
hI
High Room Temperature
Lo
Low Room Temperature
LA
Low Ambient Lockout
Cause for the fault
Indoor coil temperature has been below 32ºF for 5 minutes.
Protection feature and the displayed code are dismissed when indoor coil temperature rises above 49ºF.
Indoor air temperature has dropped below 41ºF. Protection feature and the displayed code are
dismissed when indoor room temperature rises at and above 50ºF.
Indoor air temperature is 5 degrees above maximum setpoint limit. Protection feature and the displayed code are dismissed when indoor coil temperature rises above 50ºF.
Indoor air temperature is 5 degrees below minimum setpoint limit.
Outdoor air temperature is below 25ºF.
Page 42 of 48 IM 934-5
Solid State Digital Controls – Local User Interface Display Codes
Fault code
Description
Cause for the fault
AU
Auto Damper
Control setup indicator damper is in "automatic" mode.
Au
Auto HP/E
Control setup indicator heat pump electric is in automatic changeover mode (HP/E).
Brown Out or bo
Low Voltage
bY
HP/E Bypass
Brown Out - Control monitors input voltage to prevent relay chattering. When voltage drops below
17 VAC, outputs are disabled until voltage input increases to 20 VAC or greater.
Control setup indicator, electric heat is bypassed when OCS > 40˚.
CE
LUI Communication
Communication Error, connection between LUI and control board.
CL
Damper Closed
Control setup indicator damper is in "closed" mode.
CF
Coil Freeze Protection
Indoor coil is ≤ 32˚ for at least 5 minutes. Compressor and outdoor fan stop and indoor fan continues
to run for active defrost. Protection feature and the displayed code are dismissed when indoor coil temperature rised above 49°F.
Hi
Temperature Limiting
LA
Low Ambient Lockout
Slave Unit Set to be
Controlled by a Master Unit
LC
Control Lockout –
Lockout Mode
Lo
Temperature Limiting
nL
Control Lockout – Normal Control
Hi Room Room Temperature Display Indication ONLY - Indoor air temperature is 5° above Maximum set point. Displayed code is dismissed when IAS temperature is < 5° from Max set point as adjusted in the Set Up Mode.
Unit is in cooling mode and outdoor air < 25˚. Compressor will cut out.
When slave unit jumper for Control Select is positioned over SEC, slave unit is set to be controlled by
a Master control unit.
Displays for 5 seconds when any button is pushed when in the "lockout mode".
To initiate, hold MODE button for 10 seconds.
Low Room Room Temperature Display Indication ONLY - Indoor air temperature is < 5° below
minimum set point. Displayed code is dismissed when IAS temperature is > 5° from Minimum set point as adjusted In the Set Up Mode.
Displays for 5 seconds to confirm normal mode of operation when control lock out turned off. Initiate by holding MODE button for 10 sec.
rF
Room Freeze Protection
Room temperature < 41˚. Damper closes (Premium board) and unit goes into heat mode.
Sh
Jumper Status
Missing Shunt or not properly installed.
E1
Indoor Air Sensor
Indoor Air Thermister Failure. Sensor missing or Short.
E2
Indoor Coil Sensor
Indoor Coil Thermister Failure. Sensor missing or Short.
E3
Outdoor Coil Sensor
Outdoor Coil Thermister Failure. Sensor missing or Short.
E4
Outdoor Air Sensor
Outdoor Air Thermister Failure. Sensor missing or Short.
Heat Fan Lock Out
Sensor
E5
Heat Fan Lock Out Sensor Failure, missing, short on control board or heating medium >250°F.
Check for installation/connection of HFLO sensor. Should be on coil return line.
IM 934-5
Page 43 of 48
Troubleshooting
These items should be checked by a qualified service technician only.
TroubleCauseCure
1.
2.
Blowers won’t operate on cool
Blowers operate on cool but compressor
does not start
a.
No power
b. Faulty touchpad/thermostat.
c. Loose connections at push-button switch.
a. Check supply line fusses, circuit breakers, and be sure
the power is on. Blown fuses would indicate circuit overloading, a short circuit, or a ground condition in the circuit
Voltage supply to the equipment should be checked.
Voltage underload must be within 10% of voltage given
on date plate.
b. Replace.
c Tighten.
a. b. c. d. e. f. g. h. i. Thermostat set too high.
Heat valve is open and heat is on.
Low voltage.
Faulty touchpad/thermostat.
Faulty connection at touchpad/thermostat
Defective wiring to thermostat.
Loose connections at compressor terminals.
Wiring to compressor terminals defective.
Loose connections in compressor overload device.
a. b. c. d. e. f. g. h.
i. j. Starting capacitor malfunctions (open circuited, short
circuited or loss of capacity).
Defective compressor motor (short circuited, open
circuited, grounded).
j. Replace.
k.
Adjust Rotate control knob to “Cooler.”
Close heat valve.
Check as above.
Replace.
Tighten.
Replace.
Tighten.
Replace.
Tighten.
k. * Ship cooling chassis prepaid to nearest Daikin McQuay
authorized warranty station.
3. Blowers run on cool and compressor starts but stops
after a short interval.
a. Operation of overload device due to overloading compressor motor.
a. Check voltage supply. Clean condenser inside and out.
Check at outside face of condenser for recirculation of
condenser air. Put air “splitters” in, if missing. Check compressor for short circuit. If defective, ship cooling chassis
to nearest McOuay authorized warranty station.
4.
a. Low voltage due to overload circuits within building or
throughout the local power system. Due to varying power
demands, this condition might exist only at certain times
during the day or on very hot days.
b. High voltage due to fluctuations in local power system;
usually occurs during low load periods of the day
c. Partial short circuit in compressor motor. Under normal
loading a compressor with a partial short circuit might
appear to be operating all right; increased condensing
air temperature might then cause a short.
a. Run separate electric line to equipment Consult local
power company.
a. b. c.
d. e. Blowers run on cool and compressor starts and runs, but
compressor occasionally stops (on overload device).
Faulty touchpad/thermostat.
Open circuited blower motor.
Blower rubbing against its housing.
Bearings on blower motor seized.
Loose connection at touchpad/thermostat.
b.
Consult local power company.
c. If confirmed, ship cooling chassis prepaid to nearest
McOuay authorized warranty station.
5.
Compressor starts and runs on cool but
blowers do not run.
a. b. c. d. e. 6.
Compressor starts and runs on cool, but fan motor starts,
then stops.
a. Operation of the internally connected overload device
due to a short circuit in blower motor.
a. Replace motor
b.
b. Adjust blower wheel or motor, or replace.
Windings, rubbing of blower wheel or lack of lubrication
in blower motor bearings.
Replace.
Replace.
Adjust blower motor or blower wheel position.
Replace motor
Tighten.
7.
Equipment gives electrical shock.
a. Grounded electrical circuit.
a.
8.
Insufficient cooling capacity.
a. Equipment standing too long without being run.
a. If the air conditioner is allowed to stand for an extended
length of time without being run on cool, it is possible for
all the refrigerant to become absorbed in the oil inside the
compressor and refrigeration circuit. If this should happen there will be no cooling until the necessary working
pressures have been established. This will take about 5
minutes of continuous running.
b.
1) Clean.
2) Remove obstructions.
3) Check same as in the case of malfunctioning condenser air blower.
4) Check for correct voltage. Replace blower motor if necessary
5) Adjust blower position and tighten setscrews.
6) Correct as in No 3 above.
c.
1) Clean.
2) Turn equipment off to let ice melt (see last two items of No. 9 “Too much cooling,” on page 44.
3) Clean or replace.
4) Remove obstructions.
5) Check as in No. 1.
6) Check for correct voltage. Replace motor if necessary.
7) Adjust blower wheel position and tighten setscrew
d. Refer to original load calculations, recalculate heat load.
e. Close them.
f. * Ship prepaid to nearest Daikin McQuay warranty
station.
b. Insufficient airflow through condenser due to:
1) Dirty condenser.
2) 0bstructed louver on outer cabinet or wall box.
3) Condenser blower/fan not running.
4) Condenser blower/fan not up to speed.
5) Condenser blower/fan slipping on motor shaft.
6) Recirculation of condenser air.
c. Insufficient airflow through evaporator due to:
1) Dirty evaporator.
2) Ice on evaporator coils.
3) Dirty air filter.
4) Obstructed discharge grilles.
5) Evaporator blower motor not running.
6) Evaporator blower motor not up to speed.
7) Evaporator motor slipping on motor shaft.
d. Heat load in room exceeds capacity of equipment.
e. Windows and doors in room are open
f. Compressor not pumping, indicated by:
1) Low wattage.
2) Condenser not warm, evaporator only
partially cool or not at all .
g. Restricted capillary or strainer.
1 ) Frost on capillary or strainer
2) Low wattage.
3) Condenser not warm.
4) Evaporator partially frosted, only partially cool or not at all.
Page 44 of 48 g.
Eliminate ground.
* Ship prepaid to nearest McOuay warranty
station.
IM 934-5
Trouble
9.
Cause
Too much cooling.
Cure
a. Thermostat set too low.
b. Defective thermostat
a. Adjust.
b. Replace.
a. Condensate drain from evaporator to condenser
plugged.
b. Insulating seals on equipment damaged.
c. Evaporator blower motor not up to speed.
d. Evaporator blower incorrectly positioned.
a. Remove obstructions to water flow.
11. Blowers won’t operate on Heat.
a. b. c.
d.
e.
f.
a. b. c. d. e. 12. Equipment is noisy.
a. Blower rubbing against enclosure.
10. “Sweating.”
No power.
Check HFLO installation/correction
Heat is off (equipment with heat fan lock out.
Faulty touchpad/thermostat
Loose connections at touchpad/thermostat
Thermostat set too low.
b. Blower motor bearings dry.
c. Loose blower hold-down nuts on motor-bracket
assembly
d. Refrigerant absorbed in compressor oil after extended
shutdown.
e. Equipment improperly installed.
f. Damper solenoid hums.
g. Loose terminal box cover on side of compressor.
h. Loose electrical components.
i. Copper tubing vibrating.
j. 13. Insufficient or no heat.
Harmonics.
a. No steam or hot water being applied.
b. No power.
c. d. e. f.
g. h. Faulty touchpad/thermostat.
Loose connection at touchpad/thermostat.
Thermostat set too high.
Thermostat faulty.
No power output on transformer secondary.
Inoperative valve.
1) Steam valve N/C.
2) Hot water valve N/C.
b. Adjust or replace.
c. Check for correct voltage. Replace motor if necessary.
d. Tighten.
See No. 1.
Open heat valve or turn on heating system.
Replace.
Tighten.
Adjust. Rotate control knob to “warmer”.
a. Adjust fan position on motor shaft or reposition fan
motor bracket assembly.
b. Replace motor.
c. Align blower assembly and tighten nuts.
d. Noise will disappear after equipment runs awhile.
e. Make necessary adjustments to components.
f. Check for proper adjustment. Apply silicone oil or
grease to gap between solenoid and armature.
g. Tighten.
h. Fasten securely.
i. Occasionally equipment will have noise for no apparent reason. Inspection has revealed no loose
components that might be the source of the noise.
Due to the action of the compressor, it is possible to
have internal noise develop if the refrigerant tubing has
become bent even slightly. To distinguish this condition
from the simple rattle producing vibration caused by
loose screws, nuts and other components, grasp the
refrigerant tubing at various points throughout the system until a point is found where the noise is eliminated
or reduced. Bend the copper
tubing very gently until the noise disappears.
j. Tighten.
a. Contact building management.
b. Check power supply line fuse, circuit breakers. Blown
fuses would indicate circuit overloading, a short circuit,
or a grounded condition in the circuit.
c. Replace.
d. Replace wire or tighten.
e. Adjust. Rotate knob to “warm”.
f. Replace.
g. Replace.
h.
1) Temporarily lock valve open; replace.
2) Replace.
Notes:
This guide was prepared with standard equipment in mind. If equipment is special, it may not be entirely applicable.
*
If equipment is still in warranty.
**
Notice: Before trying to correct the noise, determine its cause: conditioned air blower, compressor or condenser blower.
Operate the conditioned air blowers only. If this doesn’t cause the noise, operate on cooling. Then disconnect one
compressor lead. If the noise stops, the compressor is the source, If not, it is caused by the condenser blower.
Unit Weight - (lbs.)
Model
007
009
012
015
017
PDAA (Packaged)
144.5
152.0
152.9
160.6
165.6
PDAA (Chassis)
129.5
137.0
137.9
145.6
150.6
Louvers
Flush-stamped = 6 lbs. (3kg)
Architectural = 8 lbs. (3kg)
Subbase
3" (76mm) High Electrical = 10 lbs. (5kg).
4" (102mm) High Electrical = 12 lbs. (5.4kg)
8" (203mm) High Hydronic = 20 lbs. (9kg)
IM 934-5
Page 45 of 48
©2013 McQuay International
(800) 432-1342
www.daikinmcQuay.com
IM 934-5 / 8-13 Page 48 of 48
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertising