McQuay PKEI Installation Manual
Installation & Maintenance Data
Group: PTAC
Part No.: 669729001
Date: March 2010
Type K Incremental Packaged Terminal Air Conditioner
Incremental™ Room Conditioner with R-410A Refrigerant
IM 1068
© 2010 McQuay International
Table of Contents
Inspection ................................................................................2
Model Nomenclature ...............................................................3
Wall Opening Requirements ....................................................4
Wall Box Installation ................................................................5
Outdoor Louver Installation .....................................................6
Heat Section Installation (Sizes 007-012) .........................6-7
Heat Section Installation (Size 019) .....................................8
Cooling Chassis Installation ................................................9
Electric Power Wiring
Units with Electric Heat (Sizes 007-012 ....................
Units with Hydronic Heat (Sizes 007-012)
Units with Hydronic Heat (Size 019)
Room Cabinet and Control Installation .............................14-15
Equipment Start-up .............................................................15
Ventilation .......................................................................
Remote Mounted Thermostat Installation ..............................16
Typical Wiring Diagrams ................................................17-25
Standard Chassis w/Elect Heat & MCO Controls
(Sizes 007–012) .............................................................
Standard Chassis w/Elect Heat & MCO Controls
(Size 019) .......................................................................
.................12-13
...............................13
Installation
The installation of this equipment shall be in accordance with the
regulations of authorities having jurisdiction and all applicable
codes. It is the responsibility of the installer to determine and
follow the applicable codes. Sheet metal parts, self-tapping
screws, clips and such items inherently have sharp edges, and it
is necessary that the installer exercise caution. This equipment
is to be installed only by an experienced installation company
which employs trained personnel.
Inspection
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.
10-11
16
17
18
Standard Chassis w/Hot Water Heat & MCO Controls
(Sizes 007–012) .............................................................
Standard Chassis w/Hot Water Heat & MCO Controls
(Size 019) .......................................................................
Standard Chassis w/Steam Heat & MCO Controls
(Sizes 007–012) .............................................................
Standard Chassis w/ Steam Heat & MCO Controls
(Size 019) .......................................................................
Standard Chassis w/ Electric Heat & 24V Wall Stat
(Sizes 007–012) .............................................................
Standard Chassis w/Elect Heat & 24V Wall Stat
(Sizes 007–012) .............................................................
Standard Chassis w/Steam Heat & 24V Wall Stat
(Sizes 007–012) .............................................................
Scheduled Maintenance ........................................................26
Recommended Spare Parts ..................................................27
Troubleshooting Chart .....................................................28-29
Approximate Shipping Weights ............................................ 30
19
20
21
22
23
24
25
The carrier should also ll out a Carrier Inspection Report.
The McQuay International Trafc Department should then be
contacted.
The unit nameplate should be checked to make sure the voltage
agrees with the power supply available.
The Type K Series Comfort Conditioner is 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 or hydronic heat. Each conditioner consists of the
following components:
● Cooling Chassis ● Room Cabinet
● Heat Section ● Wall Box
● Control ● Louver
IM 1068 / Page 2 of 32
Figure 1: Type K Unit Components
Model Nomenclature
P KES 2 007 C Z 41 Z 12 AR 14 A I C 1
Model
Product Category
P = PTAC
Product Style
1= 1st Style Change
Product Identier
KES = Type K, Cool Chassis Only
KEI = Type K Cool Chassis Only, IAQ
KEC = Type K Cool Chassis Only,
Corrosion Protection
KHS = Type K Heat Section Only
Design Series
1 = A design
2 = B design
Nominal Capacity - Btuh
007 = 7000
009 = 9000
012 = 12000
019 = 19000
Voltage
A = 115-60-1
C = 208-60-1
G = 230-60-1
J = 277/265-60-1
S = 208-115-60-1
R = 265-115-60-1
Coil Options
Z = None
Heating Options
35 = 2.5 kW nominal
41 = 3.5 kW nominal
44 = 4.0 kW nominal
48 = 5.0 kW nominal
50 = 7.7 kW nominal
62 = Hydronic - Normally Open Valve (Hot Water)
63 = Hydronic - Normally Closed Valve (Steam)
SKU
A = Stock
B = Standard Delivery
C = Extended Lead time
Color
I = Antique Ivory
Power Connection
A = Junction Box
Return Air/Outdoor Air
14 = Bottom
Discharge
AR = Flat Top
Controls
12 = Unit Mounted Manual Change Over (MCO)
24 = Unit Mounted Manual Change Over
w/Night Set Back (NSB)
27 = 24V Wall T'stat w/Guest Room Control
(GRC) & Night Set Back (NSB)
32 = 24V Wall T'stat w/Night Set back(NSB)
Hand Orientation
A = Same Hand Left
B = Same Hand Right
N = LH Supply / RH Return
P = RH Supply / LH Return
Z = Not Applicable
Note: Availability of voltages, heating options, and controls may vary amongst unit sizes. Consult your McQuay
representative.
IM 1068 / Page 3 of 32
Wall Opening Requirements
Before installing the unit, check the wall opening to be sure
the wall sleeve will slide in unobstructed. The rough opening
should measure 25'' x 36½'' (635mm x 927mm) indoors and
14½" x 36½" (368mm x 927mm) outdoors for sizes 007–012
and 27¾''x 46¾'' (705mm x 1187mm) indoors and 16⅜" x 46¾"
outdoors (415mm x 1187mm) outdoors for sizes 019 as shown
below. The wall box is designed to be mounted on the oor
but may be located above the oor line to clear obstructions.
Without cabinet modications, the wall box can be placed up to
1'' (25mm) above the oor. The standard adjustable kickplate can
be telescoped to hide the space below the wall box. Complete
wall box installation instructions can found on page 5.
Figure 2: Unit and Wall Box Opening Dimensions
CAUTION
!
Sheet metal parts, self-tapping screws, clips and such items
inherently have sharp edges, and it is necessary that the
installer exercise caution. This equipment is to be installed
only by an experienced installation company which employs
trained personnel.
E
D
LC
A
H
J
K
B
M
F
G
Table 1: Unit Dimension
Dimensions – Inches
Unit Size A B C D E F G H J K L M N P R
007–012 48 2½ Min. 7¼ Min. 36¼ 5¾ 24½ 13
019 60 2½Min. 8½Min. 46¼ 6⅞ 27⅜ 15⅞ 24 4-6Adj. 3 9¼ 5/8 59½ 27¾ 46¾
Dimensions – mm
Unit Size A B C D E F G H J K L M N P R
007–012 1219 64 Min. 184 Min. 921 146 648 348 533 89-140 Adj. 44 203 25 1162 635 927
019 1524 64 Min. 216 Min. 1175 175 695 403 610 102-152 Adj. 76 235 16 1151 705 1187
11
⁄16 21 31⁄2-5½ Adj. 1¾ 8 1 45¾ 25 36½
IM 1068 / Page 4 of 32
Wall Box Installation
The wall thickness will determine how much, if any, of the
wall box will protrude into the room. Figure 3 shows a typical
installation in a frame and brick wall. These instructions will
vary by depth of wall, but not by wall material. Do not
remove the weather panel at any time during the installation
of the wall box. Premature removal of this panel could
result in improper leveling or sealing. Install the wall box as
follows:
5. Place 2'' (51mm) berglass batt or 1" (25mm) Styrofoam
insulation around the top and sides of the wall box.
6. Locate the wall box in the wall opening with the weather
panel to the outside. Use the top edge of the wall box for
horizontal leveling. The wall box must also be vertically
plumb. Shim the wall box to accomplish this. Recess so
louver is ush with outside wall.
7. Drill four (4) holes in the sides of the wall box and attach
it to the walls securely using appropriate fasteners.
1. If the wall opening has not been made, cut and break
through using care to leave interior and exterior surfaces
undamaged. See wall opening requirements on page 4 for
proper size.
2. Install lintels as shown on the plans and specications.
3. If the wall opening has already been made, measure it to
be certain it has adequate clearance for the wall box. Be
sure to allow extra clearance for insulation around the
wall box to reduce sound and heat transfer. Continue with
step #4.
4. Apply a layer of mortar or roong cement to the bottom
surface of the opening (see Figure 3).
Table 2: Wall Box Dimensions
Dimension “A”
007–012 019
in. mm in. mm in. mm
0 to -1 0 to -25 8
0 to +1 0 to +25 9
1 to 2 25 to 51 10
2 to 3 51 to 76 11
3 to 4 76 to 102 12
4 to 5 102 to 127 13
5 to 6 127 to 152 14
6 to 7 152 to 178 15
7 to 8 178 to 203 16
8 to 9 203 to 229 17
Dimension “C” – Cabinet Depth
1
⁄4 210 — —
1
⁄4 235 81⁄2 216
1
⁄4 260 91⁄2 241
1
⁄4 286 101⁄2 267
1
⁄4 311 111⁄2 292
1
⁄4 327 121⁄2 318
1
⁄4 362 131⁄2 343
1
⁄4 387 141⁄2 368
1
⁄4 413 151⁄2 394
1
⁄4 438 161⁄2 419
Note: Never drill through bottom of wall box.
8. If face brick is being installed, continue coursing up the
wall until the wall box is completely surrounded and
becomes an integral part of the wall.
9. Caulk interior and exterior perimeter weather tight where
the box meets the wall. Use a non hardening, waterproof
caulk such as silicone.
Note: For rooms with thick carpet, wall box should be
installed 1/2'' (13mm) above concrete oor to facilitate
future chassis installation and removal.
Figure 3: Wall Box End View (Drawing Not To Scale)
NOTICE
Dimension “B” will vary by the thickness of the wall, the louver, the amount
the louver is recessed into the wall (if any) and the amount the wall box extends
into the room. The minimum “B” dimension is 21⁄2'' (64mm). The wall box can
be factory furnished in increments between 21⁄2'' (64mm) and 10'' (254mm).
Wall box extensions in 1'' (25mm) increments can also be provided to attach
to the rear of the wall box.
Table 3: Wall Box “B” Dimension
Dimensions — inches
Wall Box 007–012 21⁄2 31⁄2 4 5 6 7 8 9 10
“B” Dimension 019 21⁄2 31⁄2 41⁄2 51⁄2 61⁄2 71⁄2 81⁄2 91⁄2 101⁄
007–012 101⁄2 111⁄2 12 13 14 15 16 17 18
Overall Length
Dimensions — mm
Wall Box 007–012 64 89 102 127 152 178 203 229 254
“B” Dimension 019 64 89 114 140 165 191 216 241 267
007–012 267 292 305 330 356 381 406 432 457
Overall Length
019 113⁄4 123⁄4 133⁄4 143⁄4 153⁄4 163⁄4 173⁄4 183⁄4 193⁄
019 298 324 349 375 400 425 451 476 502
IM 1068 / Page 5 of 32
2
4
Outdoor Louver Installation
1. Remove the louver from the shipping carton which also
contains the mounting hardware.
2. Remove the weather panel from the wall sleeve to gain
access to the outside of the wall box. Verify that gap
between exterior wall and wall box is caulked.
3. If an optional louver frame is required, install prior to
louver installation. Caulk that portion of the frame which
will come in contact with the wall. Pass the louver frame
through the wall box opening and from the outside of
the building, slide over the end of the wall box. Position
as desired, then drill holes through the top and sides of
the overlapping wall box and louver frame. Secure to the
wall with screws. Caulk wall box/louver frame joint on
all four sides. Provide additional caulking around outside
wall and louver frame to ensure a weather tight seal.
4. Make a temporary handle by looping a piece of exible
wire or heavy cord through the louver. This will insure
that a rm grasp can be maintained during installation.
5. From a position inside the room, push the louver through
the opening at the rear of the wall box. Line it up with the
wall box and pull it back so the louver studs pass through
the holes of the wall box ange (see Figure 4).
6. Attach the washers and nuts to secure the louver in place.
7. If heat section and cool chassis are not to be immediately
installed, replace the weather panel.
Figure 4: Louver Installation
Heat Section Installation (Sizes 007-012)
The Type K heat section is matched to the Type K cooling
chassis but packaged and shipped separately. Check the
heat section carton label and the unit’s nameplate to ensure
it is correct for the cooling chassis and the space.
The following steps should be followed when installing the
heat section:
1. Remove the heater from the shipping carton and examine
for concealed damage. Report any damage found to the
carrier. The control is packaged with the heat section
in a separate carton. Remove this carton from the heat
section and set it aside until after the heat section is
installed.
2. Manually spin the blowers to make sure there is no
interference. Minor misalignment may have occurred
during shipping and should be corrected. If it can’t be
corrected with minor adjustment, the condition should be
reported to the factory. Do not lubricate room side motor
at this time. Each unit is adequately lubricated before
leaving the factory.
3. Observe the method of installation. The heat section has
side channels that ride on rails in the wall box. At the
back of the wall box towards the top are two hooks
that engage the heat section. Locate these hooks before
sliding the heat section in place. “U”-shaped clips are
included that lock the heat section in place once installed.
“U”-clips can usually be found taped to the wall box
interior.
4. Remove the weather panel from the wall box. If the
louver has not been installed, install it before placing the
heat section into the wall box.
Figure 5: Heat Section Installation
5. Slide the heat section into place so that the holes of the
heat section surround the hooks of the wall box. Lock it
to the wall box using the “U”-shaped clips provided (see
Figure 5). The “U”-shaped clips should be positioned
with the open end pointing down.
IM 1068 / Page 6 of 32
6. The piping for steam or hot water can be supplied from
either the right or left side of the coil. Hot water must be
supplied to the bottom of the coil, and steam to the top of
the coil. See Detail A through H for specics. To simplify
connections to the coil, use 5/8'' O.D. copper tubing
where local codes allow.
7. A shutoff valve is recommended on the supply and return
side of the coil.
8. When steam is used, a trap is required on the return side.
Trap size should be determined by the consulting
engineer or steam trap supplier, depending upon the type
of system and the pressure applied.
When hot water is used, an air vent must be installed
at the highest point in the piping connection. If the vent is
not automatic, it should be piped with easy access for
regular maintenance. Caution: Locate vent so it does
not drip or spray on electrical components.
9. Insulate all exposed water or steam lines that are located
within the room cabinet. Failure to do this may cause
erratic operation of the thermostat.
10. Protect the heat section from damage during
construction. Do not operate the heat section without a
lter or the warranty will be void.
Figure 6: Suggested Piping Arrangements
in.
mm 489 552 540 267 597 514
S T U V W Y
191⁄
213⁄4 211⁄4 101⁄2 231⁄2 201⁄
4
4
Hot Water Supply Steam Supply
Detail A — Hot water supply R.H., return L.H. Detail B — Steam supply R.H., return L.H.
C
L
W
S
T
Return Stub
V
25/8"
(67mm)
2"
(51mm)
Y
C
L
S
T
Return Stub
V
(51mm)
Detail C — Hot water supply R.H., return R.H. Detail D — Steam supply R.H., return R.H.
C
L
U
T
Return
Stub
W
V
1"
(25mm)
C
L
2"
(51mm)
C
L
U
T
Return Stub
Y
V
(51mm)
2"
2"
C
L
C
L
(25mm)
25/8"
(67mm)
1"
Detail E — Hot water supply L.H., return R.H. Detail F — Steam supply L.H., return R.H.
2"
(51mm)
C
L
Return Stub
25/8"
(67mm)
25/8"
C
L
W
V
S
U
(67mm)
C
L
(51mm)
Return Stub
2"
C
L
V
S
Detail G — Hot water supply L.H., return L.H. Detail H — Steam supply L.H., return L.H.
2" (51mm)
C
L
1" (25mm)
Return Stub
W
V
C
L
S
U
(25mm)
1"
C
L
2"
(51mm)
Return Stub
Y
S
V
U
Y
U
C
L
IM 1068 / Page 7 of 32
Heat Section Installation (Size 019)
Figure 7 shows the heat section installed in a standard wall
box. Note that the heat section slides into a wall box on the
slide rails. For heat section installation, proceed as follows:
1. Remove heat section from shipping carton.
2. Visually check for shipping damage and report any
visible damage immediately to the trucker. Spin blower
wheels by hand to assure they do not rub within their
housing. Shipping may have loosened mounts. Adjust as
required.
3. Check voltage rating on data plate fastened to heat
section. This must conform to voltage supplied for the
equipment.
4. Locate slide rails on each side of wall box and insert
heater section into the wall box. Slide to the rear until it
is rmly seated.
5. Screw in the heat section lock screws as shown in Figure
7. (Screws are shipped with the heat section.)
Figure 7: Heat Section Installed in Wall Box
WARNING
!
If the heat section is used for heating an area during construction,
specicallyplastering,precautionsmustbetakentoprotectthe
equipment by using covers of corrugated board, sheet metal or
plywood.Iftheinstallationspeciesheatonly,besuretoinstall
permanentweatherpanelandlteradapter(see“Installationof
Heating Only Option”). Failure to heed this warning can cause
malfunction of the equipment.
Figure 8: Rough-in Piping Connections Locations
Figure 9: Hot Water Coil
Steam or Hot Water Application (Size 019)
When the heat section requires steam or hot water, the
installation varies. See Figures 9 and 10 for suggested piping
arrangements.
1. Supply and return piping for steam or hot water is
supplied from right-hand side only. Hot water must be
supplied to the bottom of the coil, and steam to the top of
the coil.
2. To simplify the steam or hot water connections to the
coil, use 5/8'' O.D. copper tubing where local codes
permit. See Figure 8 for rough-in dimensions.
3. When hot water is to be used, an air vent must be put in
at the highest point in the piping connection. See Figure
9. If the air vent used is not of the automatic type, it
should be piped so that it may be easily opened.
4. A shutoff valve is recommended on the supply and return
side of the coil. A steam trap is required on the return
side when steam is used for heating. See Figure 10.
5. All steam or hot water lines which are located within the
room cabinet should be insulated.
IM 1068 / Page 8 of 32
Figure 10: Steam Coil
Cooling Chassis Installation
1. Remove the cooling chassis from the shipping carton and
examine it for damage. Do not rest it on end. Check the
plate rating against the power supply to make sure that
they are the same (Figure 11). Also check the size
(capacity) to make sure that it coincides with the heat
section; e.g., Size 009 cooling.
2. The cooling chassis is supplied with an internal spring
mounted compressor. The hold-down nuts on the
compressor mountings should not be loosened.
3. Manually spin the condenser fan wheel to be sure that
there is no interference or looseness. If it is loose, tighten
the setscrew located over the center of the at on the
motor shaft. Do not lubricate condenser fan motor at time
of installation.
Figure 11: Cooling Chassis Details
4. Slide the chassis into the wall box. Chassis must be
square in the box so that all the rubber seals are pressed
tight. Check bottom seal between chassis and wall box to
ensure that it has not been unseated from slot during
chassis installation.
5. For unit size 019, there is a “J” bolt on each side
that holds the chassis in place. Thread the “J” bolts
through the holes supplied in the chassis and tighten until
the chassis is rmly seated in the wall box.
IM 1068 / Page 9 of 32
Electric Power Wiring
Before making any electrical connections, observe the
following precautions:
1. Check the nameplate rating of the heat section and
cooling chassis to make sure the equipment is connected
to the proper power supply and that proper fusing is used.
a. By installing a remote double-pole switch in the
conditioner’s power line within sight of the unit.
b. By installing a double pole, single throw “on-off”
switch located in a convenient position within the
room cabinet.
After all these precautions are observed, proceed as follows:
2. In cases where a number of conditioners are to be
installed, single circuits should be provided for each
machine.
3. A separate disconnect is recommended for each
conditioner in addition to individual fusing. This can be
accomplished in several ways:
Figure 12: Electric Heat Section (Sizes 007 through 012)
A
H
M
J
E
K
Notes:
Guest room control, low voltage or master-slave wiring connection made at
control box.
4" × 24" (102mm × 51mm) wall space for electrical conduits except behind
junction box.
Junction box with knockouts for 1/2'' (12mm) 3/4'' (19mm) conduit.
See Table 5 for dimension B.
D
Front View
Units With Electric Heat (Sizes 007–012)
A 4" x 4" electrical junction box is located on the left side of
the heat section. Field wiring should be brought to this point
for power to the unit. See Figure 12 & 13.
8"
(203mm)
Long Control
Box
Table 4: Electric Heat Section Dimensions
A D E F G H J K M
in.
mm 1162 940 451 622 348 581 254 233 38
Room Cabinet
B
Room Cabinet
Mounting Holes (4)
1
⁄2''
(12mm)
Wall Box
1
⁄4''
(6mm)
Heat Section
Power Cord
Cooling Chassis
Power Cord
Side View
453⁄4 37 173⁄4 241⁄2 1311⁄16 227⁄8 10 93⁄16 11⁄
G
2
F
Table 5: Wall Box “B” Dimensions
Wall Box Size 21⁄2" 31⁄2"
“B” Dimension 007–012 64 mm 89 mm 102 mm 127 mm 152 mm 178 mm 203 mm 229 mm 254 mm
IM 1068 / Page 10 of 32
4" 5" 6" 7" 8" 9" 10"
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