installation instructions - carrier · unit configuration unit footprint size small cabinet 46...
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SMALL ROOFTOP UNITSACCESSORY HORIZONTAL POWER EXHAUST
GAS HEATING/ELECTRIC COOLING, ELECTRICCOOLING, AND HEAT PUMP UNITS
3 TO 15 TONSIZES 04-016, 036-180
CRPWREXH028A01,CRPWREXH029A01,CRPWREXH082A00,CRPWREXH083A00For Use With HorizontalEconoMi$er IV, EconoMi$er 2,or EconoMi$er X (W7220)
Installation InstructionsTABLE OF CONTENTS
PACKAGE CONTENTS.............................................1PACKAGE USAGE....................................................1SAFETY CONSIDERATIONS...................................1GENERAL...................................................................1INSTALLATION....................................................2-11 Power Exhaust Wiring with ECONOMI$ER IV and ECONOMI$ER X...........................................4 Power Exhaust Wiring with EconoMi$er 2 and PremierLinkTM Control or RTU-MP/OPEN...........9 Operational Notes for Testing Purposes― PremierLink..........................................................10 Attaching Power Exhaust to Duct........................11
SAFETY CONSIDERATIONS
Installation and servicing of air-conditioning equipment can be hazardous due to system pressure and electrical components. Only trained and qualified service personnel should install, repair, or service air-conditioning equipment.Untrained personnel can perform the basic maintenance functions of replacing filters. All other operations should be performed by trained service personnel. When working on air-conditioning equipment, observe precautions in the literature, tags, and labels attached to the unit, and other safety precautions that may apply.Follow all safety codes. Wear safety glasses and work gloves.Recognize safety information. This is the safety-alert symbol .When you see this symbol on the unit and in instructions or manuals, be alert to the potential for personal injury. Understand these signal words; DANGER, WARNING, and CAUTION. These words are used with the safety-alert symbol. DANGER identifies the most serious hazards which will result in severe personal injury or death. WARNING signifies hazards which could result in personal in-jury or death. CAUTION is used to identify unsafe practices which may result in minor personal injury or product and property damage. NOTE is used to highlight suggestions which will result in enhanced installation, reliability, or operation.
IMPORTANT: Read these instructions completely before attempting to install this accessory.
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WARNINGELECTRICAL SHOCK HAZARDFailure to follow this warning could cause personal injury and/or death.Before beginning any modification, be certain that the main-line electrical disconnect switch is in the OFF position. Close the main gas supply shutoff valve. Tag disconnect switch and gas valve with suitable warning labels.
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PACKAGE CONTENTS
UNIT CONFIGURATION TABLE
PACKAGE USAGE
QTY CONTENTS1 Power Exhaust Hood/Fan Assembly1 Low Voltage Wiring Harness with plug ―
48 in. (1219mm)1 High Voltage Wiring Harness with plug ―
218 in. (5537mm)8 No. 10 x 3/4 in. (19mm) Mounting Screws
UNIT CONFIGURATION
UNITFOOTPRINT SIZE
Small Cabinet 46 3/4" x 74 3/8"Large Cabinet 58 1/2" x 88 1/8"
Extra Large Cabinet 63 3/8" x 115 7/8"
UNIT SIZE UNIT VOLTAGE
No. ofFANS
POWER EXHAUSTPART NUMBER
Small and Large Cabinet
208/230 V, 1 Ph 1 CRPWREXH028A01460 V, 3 Ph 1 CRPWREXH029A01
Extra Large Cabinet
208/230 V, 1 Ph 2 CRPWREXH082A00460 V, 3 Ph 2 CRPWREXH083A00
2
Fig 1 - Accessory Horizontal Power ExhaustTable 1 - Accessory Horizontal EconoMi$er Usage
Table 2 - Horizontal EconoMi$er UsageNOTE: Power Exhaust can also be used with horizontal economizers with the W7220 controller (EconoMi$er X)
GENERAL
The accessory horizontal power exhaust is used in conjunction with horizontal EconoMi$er IV, EconoMi$er X, or EconoMi$er2 only and is mounted external to the rooftop unit in the return air ductwork. For vertical return air applications, this power exhaust accessory cannot be used. The vertical power exhaust accessory must be used for vertical return air applications.NOTE: This accessory may be used with the horizontal or vertical EconoMi$er.See Table 1 and 2 for EconoMi$er usage. See Fig. 1 for accessory dimensions. The 028, 029 accessory weighs 30 lb (13.6 kg). The 082, 083 accessory weighs 75 lb (34 kg).NOTE: For 575-v installations, a field-supplied and installed transformer (part no. HT01AH859) must be used with 208/230 v power exhaust.
EXHAUST FAN(028A, 029A - Single Fan)(082A, 083A - Dual Fan, Not Shown)
XZ
Y
LOW VOLTAGEHARNESS
HIGH VOLTAGEHARNESS
REAR VIEW
BAROMETRICRELIEF DAMPER
FRONT VIEW
Power Exhaust "X" in (mm) "Y" in (mm) "Z" in (mm)CRPWREXH028A01
23.25 (590) 24.3 (625) 19.6 (495)CRPWREXH029A01CRPWREXH082A00
39 (990) 24.3 (625) 17.1 (435)CRPWREXH083A00
PART NO. UNIT SIZE DESCRIPTIONCRECOMZR024A02 Small Cabinet
EconoMi$er IV with W7212 ControllerCRECOMZR025A02 Large Cabinet
CRECOMZR064A00 Extra Large Cabinet
CRECOMZR026A00 Small CabinetEconoMi$er2 without Controller (for use with PremierLink controller or field-supplied building management system).CRECOMZR027A00 Large Cabinet
CRECOMZR065A00 Extra Large Cabinet
BASE RTU UNIT SERIAL # DESCRIPTIONFrom 4005Gxxxxx to current EconoMi$er IV with W7212 controller.
From 0802Gxxxxx to currentEconoMi$er2 without controller (used with PremierLink or field-supplied building management system).
CAUTIONCUT HAZARDFailure to follow this caution may result in personal injury.Sheet metal parts may have sharp edges or burrs. Use care and wear appropriate protective clothing, safety glasses and gloves when handling parts and servicing furnace.
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3
C07419
Table 3 - Power Exhaust Electrical Data
Fig. 2 - Tab on Horizontal EconoMi$er
INSTALLATION
IMPORTANT: Follow all local and national electrical codes when installing accessory.Follow all local and NEC (National Electrical Code) codes. If a single power source is to be used, size the wire to include power exhaust MCA and MOCP. (See Table 3.)
ECONOMI$ERHOOD
BEND TAB BACKFOR POWEREXHAUST WIRING
POWER EXHAUSTPART NO.
MCA(230 v)
MCA(460 v)
MCA(575 v)
MOCP(for separate
power source)
CRPWREXH028A01 1.7 N/A 0.68 15CRPWREXH029A01 N/A 1.0 N/A 15CRPWREXH082A00 3.3 N/A 1.32 15CRPWREXH083A00 N/A 1.8 N/A 15
LEGENDMCA --- Minimum Circuit AmpsMOCP --- Maximum Overcurrent ProtectionN/A --- Not Applicable
NOTE: For R--410A units, refer to unit nameplate for MCA and MOCP for installed power exhaust. For R--22 units, use the calculations detailed below. If multiple power exhausts are used, the MCA value used in wire size calculations must be the sum of the number of individual power exhausts used.Check MCA and MOCP when power exhaust is powered through the unit (must be in accordance with NEC and/or local codes). Determine the new MCA including the power exhaust using the following formula:MCA New = MCA unit only + MCA of Power ExhaustFor example, using a R--22 gas heat, electric cooling, 6--ton unit with MCA = 28.9 and MOCP = 35, with CRPWREXH030A01 power exhaust.MCA New = 28.9 amps + 1.7 amps = 30.6 ampsIf the new MCA does not exceed the published MOCP, then MOCP would not change. The MOCP in this example is 35 amps, the MCA New is below 35, therefore the MOCP is acceptable. If “MCA New” is larger than the published MOCP, raise the MOCP to the next larger size.For separate power, the MOCP for the power exhaust will be 15 amps per NEC.NOTE: For 575--v installations, a field--supplied and installed transformer (part no. HT01AH859) must be used with 208/230--v power exhaust. See Fig. 5 for single fan units and Fig. 7 for dual fan units.The horizontal power exhaust can be used with 3 different types of EconoMi$ers. These instructions will clearly describe the installation and wiring for:• EconoMi$er IV with W7212 controller.• EconoMi$er X with W7220 controller.• EconoMi$er2 without controller (used with PremierLink
controller or a field-supplied building management system).
To install the horizontal power exhaust, perform the following procedure:1. Turn off unit power supply and install lockout tag.
WARNINGELECTRICAL SHOCK HAZARDFailure to follow this warning could cause personal injury and/or death.Before beginning any modification, be certain that the main-line electrical disconnect switch is in the OFF position. Close the main gas supply shutoff valve. Tag disconnect switch and gas valve with suitable warning labels.
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2. If ductwork has not already been constructed and connected to HVAC (heating, ventilation and air conditioning) unit, field-fabricate and secure the return air duct per HVAC unit recommendations and the unit installation instructions.
3. Once the horizontal EconoMi$er has been installed, locate the notched tab in the upper left corner of the return damper. (See Fig. 2.) Bend back this tab to allow for power exhaust wiring entry.
4. Install the EconoMi$er per the instructions provided with the accessory. Tape the barometric relief blades on the EconoMi$er shut. The barometric relief is not used when the power exhaust is installed.
5. Cut an exhaust air opening in the side of the return air duct. See Fig. 3 for dimensions.
6. Place the power exhaust near the exhaust air opening in preparation for wiring to the unit. It may be easier to hold the power exhaust unit up to this opening and attach with a few screws and then remove so that the installation will be easier later when it is important that the wires are not pinched.
4
Fig. 3 - Tab on Horizontal EconoMi$er
Fig. 4 - Power Exhaust Harness Routing for EconoMi$er IV and EconoMi$er X
2.25”(57.15)
X
*36”(914.4)
21.5”(546.1)
Power Exhaust Wring for EconoMi$er IVand EconoMi$er X
1. Both wiring harnesses (low voltage and high voltage) are plugged together with the extensions at the factory for shipping. Unplug harnesses and uncoil wire. (See Fig. 1.)
2. For EconoMi$er IV: Route the other end of the low voltage extension harness to the EconoMi$er controller. (See Fig. 4.) The harness is connected to the controller by connecting the tan wire to the tan wire 24 VAC COM terminal on the controller. The terminal on the gray wire is connected to terminal EF1 on the controller. See Fig. 5 – Fig. 8 for EconoMi$er wiring diagrams. Install the gray jumper wire on the controller from the exhaust fan terminal (EF), to the 24 VAC HOT terminals. The gray jumper is shipped wire tied to the control harness.
For EconoMi$er type with W7220 controller: Route the end of the low voltage extension harness to the EconoMi$er X 12 pin plug (PL6). The gray wire harness connects to the yellow wire coming from terminal 8 in the 12 pin plug. The tan wire from the low voltage extension harness connects to the brown wire coming from terminal 4 in the 12 pin plug. See figures 5-8 for wiring diagrams.
3. The power line wiring harness must be routed through the duct, through the hole created by the bent tab on the EconoMi$er, and through the unit to the control box. (See Fig. 4.) The harness must be routed through the grommets provided in the unit control box. Do not drill routing holes.
4. Wire the end of the power line wiring harness to the power exhaust power source. (See Fig. 5 – Fig. 8.) R-410A Rooftop Models Only: For single point wiring applications, connect the power exhaust power wire harness to the compressor contactor in the control box. Install the power exhaust power wire harness into the pressure lugs on the compressor contactor, used for the field power wiring also. Be careful not to route power exhaust harness on top of indoor coil. Follow all local and NEC (National Electrical Code) codes. If a single power source is to be used, size the wire to include power exhaust MCA and MOCP.
5. Make sure all wiring is secure. Use field-supplied wire ties if necessary. Be sure that wiring does not interfere with operation of the HVAC unit, EconoMi$er, or power exhaust.
6. Connect the low voltage harness plug and the power line harness plug to the two plugs coming out of the power exhaust. (See Fig. 4.)
RETURNAIR DUCT†
POWER EXHAUSTAIR OPENING
POWER EXHAUST(PREFERRED LOCATION)
HORIZONTAL DUCT
POWER EXHAUST(ALTERNATE LOCATION)
ECONOMI$ER HOOD
ECONOMI$ER IV CONTROLLER
COIL
FILTER
POWER HARNESS CONTROL BOX
LOW VOLTAGE EXTENSIONHARNESS FROM POWEREXHAUST KIT
Power Exhaust "X" in (mm)CRPWREXH028A01
19.5 (495)CRPWREXH029A01CRPWREXH082A00
35 (890)CRPWREXH083A00
NOTES:Dimensions are in inches. Dimensions in ( ) are in millimeters.* Recommended distance if space allows.† May require bracing due to the weight of the power exhaust.
7. Follow control and power wiring instructions specific to this economizer and unit control.
IMPORTANT: To achieve higher levels of exhaust air, multiple power exhaust accessories may be used. If more than one power exhaust is being installed, cut additional openings in the ductwork.
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Fig. 5 - Single Fan Power Exhaust Wiring for EconoMi$er IV and EconoMi$er X - 208/230 and 575 V Units
GR
EE
N - Y
ELL
OW
GREEN
TAN TAN
TAN
WH
ITE
RE
DB
LAC
K
GRAY GRAY
TAN
BLA
CK
BLACK EXH.FAN #1
C1
GRD.BLU
E
BROWN
RELAY
24 VACCOM
24 VACHOT
EF1
+
1 3
7 9
4 6
2
2
3
BLACK
BLUEA B
POWER LINEPLUG
END SWITCHPLUG
ECONOMI$ERCONTROLLER
TO ECONOMI$ERACTUATOR
575V
TO 575V POWER
PRIMARY
SECONDARY
220V
BLAC
K
BLU
E
FOR 575-V POWER SUPPLY
OR
POWER EXHAUSTACCESSORY
EF
FIELD
POWER
SUPPLY
BLK
YEL
BLU
GRN/YEL
To C11
To C23
To IFC13
(ROOFTOP CONTROL BOX)
GRD.
3
4
2
1
3
4
2
1
3
4
2
1
1
4
3
2
1
4
3
2GRAY
NOTES:
1
2
3
4
575 V transformer No. HT01AH859 is ordered separately from power exhaust.Economizer actuator and controller are shipped withthe Economizer - not with power exhaust.Connections from low voltage plug to Economizercontroller are made by installer.If a single power source is to be used, size wire toinclude power exhaust MCA and MOCP.For R-410A units, refer to unit nameplate for MCAand MOCP for installed power exhaust.For R-22 units, use the following calculationsCheck MCA and MOCP when power exhaust is poweredthrough the unit. Determine the new MCA including the power exhaust using the following formula:MCA New = MCA unit only + MCA of Power ExhaustFor example, using an electric cooling, 6-tonR-22 unit with MCA + 28.9 and MOCP = 35, withCRPWREXH030A01 power exhaust.MCA New = 28.9 amps + 1.5 amps = 30.4 ampsIf the new MCA does not go over the MOCP published,then MOCP would not change. The MOCP in thisexample is 35 amps, the MCA New is below 35,therefore the MOCP is OK. If “MCA New” is larger thanthe published MOCP, raise the MOCP to the next larger size. For separate power, the MOCP for the power exhaust will be 15 amps per NEC.
Field Supplied Wiring
TRANSFORMERNO. HT01AH859
(FIELD-SUPPLIEDAND INSTALLED)
FOR 208/230-V SEPARATEPOWER SUPPLY FIELD
SUPPLIEDFUSED
DISCONNECT
GROUND
FIELD SUPPLIED 2 X 4 JUNCTION BOX
C10543
1 2 3 4 5 6 7 8 9 10 11 12
1234 GRAY
TAN
PL-6
BR
N
YE
L
ECONOMI$ER X
6
Fig. 6 - Single Fan Power Exhaust Wiring for EconoMi$er IV and EconoMi$er X - 460 V Units
1 2 3 4 5 6 7 8 9 10 11 12
1234 GRAY
TAN
BR
N
YE
L
ECONOMI$ER X
PL-6
WH
ITE
BLAC
K
WH
ITE
24VCOM
24VHOT
+
TAN
TAN
BLAC
KR
ED
BLUE
GR
EEN
RED
WH
ITE
BLAC
K
REDGREEN
TO ECONOMI$ERACTUATOR
A B
8 9
1 2 3
7
54 6
RELAY #1
1
2
BLACK
EF1
ECONOMI$ERCONTROLLER
ENDSWITCH
PLUG
POWERLINEPLUG
OR
FIELD SUPPLIED2 x 4 JUNCTION BOX
GROUND
SEPARATEPOWEWSOURCE
GRAY
GRAY
GRAY
1
EF
To C11
To C23
To IFC13
(ROOFTOP CONTROL BOX)
EQUIP GNDGRD.
NOTES:
1
2
3
Economizer actuator and controller are shipped withthe Economizer - not with power exhaust.Connections from low voltage plug to Economizercontroller are made by installer.If a single power source is to be used, size wire toinclude power exhaust MCA and MOCP.For R-410A units, refer to unit nameplate for MCAand MOCP for installed power exhaust.For R-22 units, use the following calculationsCheck MCA and MOCP when power exhaust is poweredthrough the unit. Determine the new MCA including the power exhaust using the following formula:MCA New = MCA unit only + MCA of Power ExhaustFor example, using an electric cooling, 6-tonR-22 unit with MCA + 28.9 and MOCP = 35, withCRPWREXH030A01 power exhaust.MCA New = 28.9 amps + 1.5 amps = 30.4 ampsIf the new MCA does not go over the MOCP published,then MOCP would not change. The MOCP in thisexample is 35 amps, the MCA New is below 35,therefore the MOCP is OK. If “MCA New” is larger thanthe published MOCP, raise the MOCP to the next larger size. For separate power, the MOCP for the power exhaust will be 15 amps per NEC.
Field Supplied Wiring
FIELD
POWER
SUPPLY
GRN/YEL
YEL
BLK
BLU
1
4
32
1
4
32
1
4
3
2
FIELDSUPPLIED
FUSEDDISCONNECT
NW
OR
B
GREEN-YELLOWEXH.FAN #1
1
4
32
1
4
32
GRAY GRAY
GRAY
TAN
POWER EXHAUSTACCESSORY
C10544
7
Fig. 7 - Dual Fan Power Exhaust Wiring for EconoMi$er IV and EconoMi$er X - 208/230 V and 575 V Units
GREEN - YELLOW
GR
EE
N -
YE
LLO
W
GREEN
TAN TAN
WH
ITE
RE
DB
LAC
K
GRAY GRAY
BLA
CK
BLA
CK
BLACKBLACK EXH.FAN #1
EXH.FAN #2
GRD.
GRD.
BLU
E
BLU
E
BROWN BROWN
RELAY
TO ECONOMI$ERACTUATOR
24 VACHOT
24 VACCOM
EF 1
+
3
1
2A B
1 3
7 9
4 6
4
BLACK
REDEND
SWITCHPLUG
POWER LINEPLUG
C1 C2
TRANSFORMERNO. HT01AH859
(FIELD-SUPPLIEDAND INSTALLED)
575V
TO 575V POWER
PRIMARY
SECONDARY
220V
BLA
CK
RE
D
OR
FIELDSUPPLIED
FUSEDDISCONNECT
FIELD SUPPLIED 2 X 4 JUNCTION BOX
GROUND
FOR 575-V POWER SUPPLY
FOR 208/230-V SEPARATEPOWER SUPPLY
2
ECONOMI$ERCONTROLLER 2
3
POWEREXHAUSTACCESSORY
EF
NOTES:
Field Supplied Wiring
1
2
3
4
FIELD
POWER
SUPPLY
BLK
YEL
BLU
GRN/YEL
To C11 for Small and Large CabinetTo IFC-11 for Extra-Large Cabinet
To C13 for Smalland Large Cabinet
To IFC13 forExtra-Large Cabinet
575 V transformer No. HT01AH859 is ordered separately from power exhaust.Economizer actuator and controller are shipped withthe Economizer - not with power exhaust.Connections from low voltage plug to Economizercontroller are made by installer.If a single power source is to be used, size wire toinclude power exhaust MCA and MOCP.For R-410A units, refer to unit nameplate for MCAand MOCP for installed power exhaust.For R-22 units, use the following calculationsCheck MCA and MOCP when power exhaust is poweredthrough the unit. Determine the new MCA including the power exhaust using the following formula:MCA New = MCA unit only + MCA of Power ExhaustFor example, using an electric cooling, 6-tonR-22 unit with MCA + 28.9 and MOCP = 35, withCRPWREXH030A01 power exhaust.MCA New = 28.9 amps + 1.5 amps = 30.4 ampsIf the new MCA does not go over the MOCP published,then MOCP would not change. The MOCP in thisexample is 35 amps, the MCA New is below 35,therefore the MOCP is OK. If “MCA New” is larger thanthe published MOCP, raise the MOCP to the next larger size. For separate power, the MOCP for the power exhaust will be 15 amps per NEC.
GRAY
TAN3
1
2
4
3
1
2
4
1
2
3
4
1
2
3
4
C10426
1 2 3 4 5 6 7 8 9 10 11 12
1234 GRAY
TAN
PL-6
BR
N
YE
L
ECONOMI$ER X
8
Fig. 8 - Dual Fan Power Exhaust Wiring for EconoMi$er IV and EconoMi$er X - 460 V Units
WHITE
GRD
WH
ITE
BLA
CK
BLA
CK
WH
ITE
TAN
GRAY
+
GRAY
TAN
BLA
CK
RE
D
BLUEBLUE
REDGREEN
AA BB
89
11 22 33
77
54 66
EXH.FAN #1
EXH.FAN #2
3
12
3
12
4
33
1122
44
4
1
2
BLACKBLACK
BR
OW
N
BR
OW
N
RELAY #2
45
8
EF 1
24VHOT
24VCOM
1
OR
1
2
4
3
GROUND
GR
EE
N
RE
D
WH
ITE
BLA
CK
GRAYGRAY
9
GRAY
GRAY
EF
NOTES:
1
2
3
FIELD
POWER
SUPPLY
BLK
YEL
BLU
To C11 for Small andLarge CabinetTo IFC-11 forExtra-Large Cabinet
To C13 for Smalland Large Cabinet
To IFC13for Extra-LargeCabinet
EQUIPGND
GRN/YEL
SEPARATEPOWERSOURCE
FIELDSUPPLIED
FUSEDDISCONNECT
FIELD SUPPLIED2 x 4 JUNCTION BOX
POWERLINEPLUG
RELAY #1
GREEN - YELLOW POWEREXHAUSTACCESSORY
TO ECONOMI$ERACTUATOR
ECONOMI$ERCONTROLLER
ENDSWITCH
PLUG
Field Supplied Wiring
Economi$er actuator and controller are shipped with the Economi$ernot with power exhautst.Connections from low voltage Plug to the Economi$er controller are madeby installer.If a single power source is to be used, size wire to include power exhaustMCA and MOCP.For R-410A units, refer to the unit nameplate for MCA and MOCP forinstalled power exhaust.For R-22 units use the following calculations Check MCA and MOCP when power exhaust is powered through the unit.Determine the new MCA including the power exhaust using the followingformula:MCA New = MCA unit only + MCA of Power ExhaustFor example, using an electric cooling, 6-ton R-22 unit with MCA = 28.9 andMOCP = 35, with CRPWREXH030A01 power exhaust.MCA New = 28.9 amps + 1.5 amps = 30.4 ampsIf the new MCA does not go over the MOCP published, then MOCP wouldnot change. The MOCP in this example is 35 amps, the MCA New is below35, therefore the MOCP is OK. If “MCA NEW” is larger than the publishedMOCP, raise the MOCP to the next larger size. For separate power, the MOCP for the power exhaust will be 15 amps per NEC.
GRAY
TAN
C10427
1 2 3 4 5 6 7 8 9 10 11 12
1234 GRAY
TAN
BR
N
YE
L
ECONOMI$ER X
PL-6
9
Fig. 9 - Power Exhaust Installed in Duct
Fig. 10 - Power Exhaust Performance
0
1000
2000
3000
4000
5000
0 0.1 0.2 0.3 0.4 0.5
EXH
AU
ST A
IRFL
OW
(CFM
)
RETURN DUCT STATIC PRESSURE (in WC)
Small andLargeCabinet(Single Fan)
Extra LargeCabinet(Dual Fan)
* Use alternate location if preferred location causes recirculation of exhaust air into outdoor air intake.
HORIZONTAL POWER EXHAUST(PREFERRED LOCATION*)
HORIZONTALECONOMI$ERHOOD
HORIZONTAL POWER EXHAUST(ALTERNATE LOCATION)
Power Exhaust Wiring with EconoMi$er2, Comfortlink and PremierLink Controller or RTU--MP/OPENUse these instructions when installing the vertical power exhaust with EconoMi$er2 and PremierLink or RTU--MP/OPEN controller.1. A low voltage extension harness is supplied with the EconoMi$er2
(without controller).2. Both the low voltage and power harness must be run through the
duct, through the hole created by the bent tab on the EconoMi$er2, and through the unit control box. (See Fig. 9.)
3. Run the low voltage harness extension to the PremierLink control.
4. Route the other end of the long high voltage extension harness through the HVAC unit to the control box. (See Fig. 4.) The harness must be routed through the grommets provided in the unit. Do not drill routing holes. Be careful not to route the power exhaust harness on top of the indoor coil.
5. Wire the end of the power line wiring harness to the power exhaust power source. (See Fig. 5 -- Fig. 8.)
R-410A Rooftop Models Only: For single point wiring applications, connect the power exhaust
power wire harness to the compressor contactor in the control box. Install the power exhaust power wire harness into the pressure lugs on the compressor contactor, used for the field power wiring also. Follow all local and NEC (National Electrical Code) codes. If a single power source is to be used, size the wire to include power exhaust MCA and MOCP. (See Table 3.)
10
6. Field--Installed PremierLink Control (See Fig. 12) Connect the gray wire from the low voltage extension harness to
J8--3 and the tan wire to common terminal. Common is available from PremierLink terminal J1 or the common side of the unit control power transformer (the brown leads that go to unit ground). The other end of the harness is connected to the power exhaust wiring.
NOTE: When the PremierLink board is configured for a heat pump, it does not require the HS3/EXH/RVS, allowing this terminal to be used for the power exhaust.
Factory--Installed PremierLink Control The PremierLink J8--3 terminal is factory wired to a terminal
board TB2--15 (Small & Large Cabinet) or TB3--15 (Extra Large Cabinet) located in the low voltage section to the left of the control box. The gray wire from the harness should be routed and wired to TB2--15 or TB3--15. The tan wire should be routed and wired to the Central Terminal Board Thermostat Terminal C (Common).
RTU--MP/OPEN Control Connect the gray wire from the low voltage harness extension to
J11--3 and the tan wire to the Central Terminal Board Thermostat Terminal C (Common).
Comfortlink Control Connect the gray wire from the low voltage harness extension to
the loose red wire from the Economizer Control Board (EBC). Connect the tan wire to the loose tan wire from PL7.
7. Make sure all wiring is secure. Use field-supplied wire ties if necessary. Be sure that wiring does not interfere with operation of the HVAC unit, EconoMi$er, or power exhaust.
8. Connect the low voltage harness plug and the power line harness plug to the two plugs coming out of the power exhaust. (See Fig. 9.)
Operational Notes For Testing Purposes— PremierLinkIf the “continuous power exhaust” function is disabled, the power exhaust fan will operate during EconoMi$er purge cycles when the EconoMi$er damper position is above the configured minimum value. If enabled, the power exhaust fan will follow the supply fan’s operation for PremierLink version 1.2 and will follow the occupancy configuration for PremierLink version 1.3.The PremierLink “Auxiliary Output” function defines the specific use of the auxiliary output (HS3/EXH/RVS) for the power exhaust. The output will be energized or deenergized by the appropriate algorithm that uses that specific output. A setting of 1 = Exhaust fan output.The Power Exhaust set point in the set point table determines the power exhaust damper “percent open” when the power exhaust is energized. The damper percentage set point has a 10% hysteresis.If “Continuous” in the service configuration table is set to “enable”, the power exhaust output will energize when occupied (for PremierLink controls version 1.3 and later) and will be energized when the supply fan relay is on (for versions prior than 1.3).
Fig. 11 - Harness Routing for EconoMi$er with PremierLink Controls(R-22 Equipped Models)
C07424
LOW VOLTAGE EXTENSION HARNESS TO PREMIERLINK
POWER HARNESS
POWER EXHAUST (PREFERRED LOCATION)
HORIZONTALDUCT
POWER EXHAUST(ALTERNATE LOCATION)
ECONOMI$ER 2HOOD
COIL
FILTERS
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Fig. 12 - Typical PremierLink Control Wiring To R-22 Equipped Rooftop Units
PWR
HS3/EXH/RVS
HS2
HS1
CMP2
CMP1
FAN
RED
ORN
PNK
WHT
BLU
YEL
GRN
BRN
RED
RED
CU
T FO
R D
UA
LTR
AN
SFO
RM
ER
EQ
UIP
ME
NT
RE
LAY
S
CU
T TO
ISO
LATE
CO
NTR
OLL
ER
PO
WE
R
PW
RJ1
J8
R
Y1
Y2
W1
W2
G
C
X
ROOFTOP UNIT
GRNREDYEL
BLU
RMTOCC
CMPSAFE
FSDREDWHT SFSREDPNKREDORNRED
ENTH
NOT USED
DIS
CR
ETE
J4
DDC CONTROLRED
RED
PREMIERLINKTERMINAL
J8
C07491
Attaching Power Exhaust to Duct1. Caulk the side mating flanges on the power exhaust. Lift
power exhaust and install over the duct opening using the screws (no. 10 x 3/4 in.) provided. (See Fig. 9.) Make sure wiring harnesses are properly secured.
IMPORTANT: The return air duct will need to support theweight of the power exhaust. Reinforce or support ductproperly to prevent damage to duct from the weight of thepower exhaust.1. Adjust the power exhaust set point on the EconoMi$er
controller to the desired activation point.2. Return power to unit and remove lockout tag.3. Test power exhaust operation by setting the power exhaust
set point on the EconoMi$er controller to 0%. Power exhaust performance is shown in Fig. 10.
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Copyright 2013 Carrier Corporation ● 7310 W. Morris St. ● Indianapolis, IN
Manufacturer reserves the right to discontinue, or change at any time, specification or designs without notice and without incurring obligations
Catalog No. IIK-CRPWREXH028-05Edition Date: 10/13
Replaces: IIK-CRPWREXH028-04