Carrier 40QQ-036ABA3-0A0 User manual

1
40QQ
VRF Rooftop
Heat Recovery and Heat Pump
Sizes: 036, 048, 060
Installation Instructions
TABLE OF CONTENTS
SAFETY CONSIDERATIONS 1....................
NOMENCLATURE 2.............................
DIMENSIONS 3- 4...............................
CENTER OF GRAVITY 5.........................
RECOMMENDED SERVICE CLEARANCE 6........
ELECTRICAL DATA 6...........................
INSTALLATION 7- 13............................
HORIZONTAL AND VERTICAL ECONOMI$ER X
ACCESSORY INSTALLATION INSTRUCTIONS 13- 29
CRHEATER ACCESSORY INSTALLATION
INSTRUCTIONS 30- 34..........................
FS BOX INSTALLATION INSTRUCTIONS 35- 37....
CONNECTOR SPECIFICATIONS OF P.C. BOARD
MCC- 1570 38...................................
ADVANCED CONTROL 39.......................
FUNCTION CODE (DN CODE) SETTING 40........
ELECTRIC HEATER CONTROL SETTING 41- 42....
TEST RUN 43..................................
TROUBLESHOOTING 44.........................
CHECK CODES AND PARTS TO BE CHECKED 45- 47
WIRING DIAGRAMS 48- 49......................
STARTUP REPORT 50...........................
SAFETY CONSIDERATIONS
Improper installation, adjustment, alteration, service,
maintenance, or use can cause explosion, fire, electrical
shock or other conditions that may cause personal injury
or property damage. Consult a qualified installer, service
agency, or your distributor or branch for information or
assistance. The qualified installer or agency must use
factory- authorized kits or accessories when modifying
this product. Refer to the individual instructions packaged
with the kits or accessories when installing.
Follow all safety codes. Wear safety glasses and work
gloves. Use quenching cloths for brazing operations and
have a fire extinguisher available. Read these instructions
thoroughly, and follow all warnings or cautions attached
to the unit. Consult local building codes and appropriate
national electrical codes (in USA, ANSI/NFPA 70,
National Electrical Code (NEC); in Canada, CSA C22.1)
for special requirements.
It is important to 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 the signal words DANGER, WARNING,
CAUTION, and NOTE. 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 injury 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.
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 19- 40QQ001- 01 Printed in U.S.A Form 40QQ- 4SI 06- 19 Replaces: New
40QQ

2
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could cause personal
injury or death.
Before performing service or maintenance operations
on the unit, turn off the main power switch to the unit
and install lock(s) and lockout tag(s). Ensure electrical
service to rooftop unit agrees with voltage and
amperage listed on the unit rating plate. The unit may
have more than one power switch.
!WARNING
UNIT OPERATION AND SAFETY HAZARD
Failure to follow this warning could cause personal
injury, death and/or equipment damage.
Puronr(R- 410A) refrigerant systems operate at
higher pressures than standard R- 22 systems. Do not
use R- 22 service equipment or components on Puron
refrigerant equipment.
!WARNING
PERSONAL INJURY AND ENVIRONMENTAL
HAZARD
Failure to follow this warning could cause personal
injury or death.
Relieve pressure and recover all refrigerant before
system repair or final unit disposal.
Wear safety glasses and gloves when handling
refrigerants. Keep torches and other ignition sources
away from refrigerants and oils.
!WARNING
CUT HAZARD
Failure 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 air conditioning equipment.
CAUTION
!
NOMENCLATURE
* Option no longer available. For information only.
Fig. 1 - 40QQ 036- 060 Model Number Nomenclature
40QQ

3
DIMENSIONS
Fig. 2 - Dimensional Drawing
40QQ

4
DIMENSIONS (CONT.)
Fig. 3 - Dimensional Drawing
40QQ

5
CENTER OF GRAVITY
Fig. 4 - Center of Gravity Drawing
40QQ

6
RECOMMENDED SERVICE CLEARANCE
Fig. 5 - Recommended Service Clearance
Table 1 – Service Clearance Dimensions
Location Dimension Condition
A
48 in (1219 mm)
18 in (457 mm)
18 in (457 mm)
12 in (305 mm)
Unit disconnect is mounted on panel
No disconnect
Recommended service clearance
Minimum clearance
B
42 in (1067 mm)
36 in (914 mm)
Special
Surface behind servicer is grounded (e.g., metal, masonry wall)
Surface behind servicer is electrically non- conductive (e.g., wood, fiberglass)
Check sources of flue products within 10 ft of unit fresh air intake hood
C36 in (914 mm)
18 in (457 mm)
Side condensate drain is used
Minimum clearance
D42 in (1067 mm)
36 in (914 mm)
Surface behind servicer is grounded (e.g., metal, masonry wall, another unit)
Surface behind servicer is electrically non- conductive (e.g., wood, fiberglass)
NOTE: The Unit is not designed to have overhead obstruction. Contact Application Engineering for guidance
on any application planning overhead obstruction or for vertical clearances.
ELECTRICAL DATA
Table 2 – VRF RTU
Tonnage Model Number Voltage MCA (A)* MOCP (A)*
340QQ - 036ABA3- 0A0 208/230- 1- 60 8.00 15
40QQ - 036ABA6- 0A0 460-3-60 2.00 15
440QQ - 048ABA3- 0A0 208/230- 1- 60 8.00 15
40QQ - 048ABA6- 0A0 460-3-60 2.00 15
540QQ - 060ABA3- 0A0 208/230- 1- 60 11.00 15
40QQ - 060ABA6- 0A0 460-3-60 3.00 15
* Without electric heaters. If electric heaters are used, refer to Tables 15 and 16.
LEGEND:
MCA - Minimum circuit amps
MOCP- MAX FUSE or HACR Breaker
NOTE: In compliance with NEC requirements for multimotor and combination load equipment (refer to NEC Articles
430 and 440), the overcurrent protective device for the unit shall be fuse or HACR breaker. Canadian units may be fuse or
circuit breaker.
40QQ

7
INSTALLATION
Jobsite Survey
Complete the following checks before installation:
1. Consult local building codes and the NEC (National
Electrical Code) (ANSI/NFPA 70) for special
installation requirements.
2. Determine the unit location (from project plans) or
select a unit location.
3. Check for possible overhead obstructions that may
interfere with lifting or rigging the unit.
Step 1 — Plan for Unit Location
Select a location for the unit and its support system (curb
or other) that provides for minimum clearances required
for safety (including clearance to combustible surfaces),
unit performance, and service access below and around
the unit as specified in Fig. 5.
NOTE: Consider the effect of adjacent units.
Unit may be installed on wood flooring or on Class A, B,
or C roof- covering material when roof curb is used.
Do not install unit in an indoor location. Do not locate air
inlets near exhaust vents or sources of contaminated air.
Unit is weatherproof, but avoid locations that permit water
from higher level runoff and overhangs to fall onto unit.
Select a unit mounting system that provides adequate
height to allow installation of condensate trap per
requirements.RefertoStep8—InstallExternal
Condensate Trap and Line – for required trap dimensions.
Roof Mount —
Check building codes for weight distribution
requirements. Unit operating weight is shown in Table 3.
Step 2 — Plan for Sequence of Unit Installation
The support method used for this unit will dictate different
sequences for the steps of unit installation. For example,
on curb- mounted units, some accessories must be
installed on the unit before the unit is placed on the curb.
Review the following for recommended sequences for
installation steps.
Curb- Mounted Installation —
1. Install curb.
2. Install field- fabricated ductwork inside curb.
3. Prepare bottom condensate drain connection to suit
planned condensate line routing (refer to Step 8).
4. Rig and place unit.
5. Install condensate line trap and piping.
6. Make electrical connections.
7. Install other accessories.
Table 3 – Operating Weights
40QQ* Units LB (KG)
036 048 060
Base Unit 346 (157) 388 (176) 401 (182)
Economizer
Vertical 50 (23) 50 (23) 50 (23)
Horizontal 80 (36) 80 (36) 80 (36)
Curb
14- in/356 mm 115 (52) 115 (52) 115 (52)
24- in/610 mm 197 (89) 197 (89) 197 (89)
Pad- Mounted Installation —
1. Prepare pad and unit supports.
2. Check and tighten the bottom condensate drain
connection plug.
3. Rig and place unit.
4. Convert unit to side duct connection arrangement.
5. Install field- fabricated ductwork at unit duct
openings.
6. Install condensate line trap and piping.
7. Make electrical connections.
8. Install other accessories.
Frame- Mounted Installation —
Frame- mounted applications generally follow the
sequence for a curb installation. Adapt as required to suit
specific installation plan.
Step 3 — Inspect Unit
Inspect unit for transportation damage. File any claim
with transportation agency.
Before installation of unit, confirm that voltage,
amperage, and circuit protection requirements listed on
unit data plate agree with power supply provided.
Locate the carton containing the outside air hood parts.
Do not remove carton until the unit has been rigged and
located in one final position.
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8
Step 4 — Provide Unit Support
Roof Curb Mount —
Accessory roof curb details and dimensions are shown in
Fig. 6. Assemble and install accessory roof curb in
accordance with instructions shipped with the curb.
Curb should be level, which is necessary for the unit drain
to function properly. Unit leveling tolerances are shown in
Fig. 7. Refer to Accessory Roof Curb Installation
Instructions for additional information as required.
Install insulation, cant strips, roofing felt, and counter
flashing as shown. Ductwork must be attached to curb and
not to the unit. The accessory thru- the- base power and
gas connection package must be installed before the unit
is set on the roof curb.
NOTE: Gasketing of the unit to the roof curb is critical
for a watertight seal. Install the gasket supplied with the
roof curb as shown in Fig. 6. Improperly applied gasket
can also result in air leaks and poor unit performance.
Slab Mount (Horizontal Units Only) —
Provide a level concrete slab that extends a minimum of 6
inches (150 mm) beyond unit cabinet. Install a gravel
apron in front of condenser coil air inlet to prevent grass
and foliage from obstructing airflow.
NOTE: Horizontal units may be installed on a roof curb
if required.
Alternate Unit Support (In Lieu of Curb or Slab
Mount) —
A non- combustible sleeper rail can be used in the unit
curb support area. If sleeper rails cannot be used, support
long sides of unit with a minimum of three equally spaced
4inchx4inch(102mmx102mm)padsoneach side.
40QQ

9
EE
7/16" [11]
4 9/16"
[115.5]
1/4"
[7.0]
5' 7-3/8"
[1711.3]
1' 4-13/16" [427] INSIDE
1-3/4" [44.4]
2-3/8" [61]
1-3/4" [44.5]
1.00" [25.4]
"A"
1-3/4" [44.4]
21.74"
[552.2]
5.42"
[137.7]
11.96"
[303.8]
4.96"
[126.0] 70.87"
[1800.2]
40.69"
[1033.5]
21.84"
[554.7]
16.03"
[407.2]
1.75"
[44.5] 20.41"
[518.3]
3.00" [76.2]
13.78"
[350.0]
14.00"
[355.6]
3.00" [76.2]
15.19"
[385.8]
32.19"
[817.6]
3'-1 3/16"
[944.6]
"A"
1-3/4" [44.5]
CRBTMPWR001A01 3/4" [19] NPT
3/4" [19] NPT
1/2" [12.7] NPTCRRFCURB002A01
CONNECTOR PKG. ACC. GAS CONNECTION TYPE GAS FITTING POWER WIRING
FITTING
CONTROL WIRING
FITTING
ACCESSORY CONVENIENCE
OUTLET WIRING CONNECTOR
THRU THE CURB
1/2" [12.7] NPT 1/2" [12.7] NPT
CRBTMPWR003A01 THRU THE BOTTOM
ROOF CURB
ACCESSORY # A
CRRFCURB001A01 14"
[356]
24"
[610]
ECN NO.APP'DCHK'DBYDATEREVISION RECORDREV
1067898--MMC04/22/13
OVERALL DIM. 5'-7 3/8" WAS 5'-7 7/8; 18GA MATERIAL WA 16 GA.; NAIL FIELD SUPPLIED WAS WITH CURB
A
DRAWING RELEASE LEVEL: PRODUCTION THIRD ANGLE PROJECTION
UNLESS OTHERWISE SPECIFIED
DIMENSIONS ARE IN INCHES
TOLERANCES ON:
THIS DOCUMENT AND THE INFORMATION CONTAINED THEREIN IS PROPRIETARY TO CARRIER CORPORATION AND SHALL NOT BE USED OR DISCLOSED TO OTHERS, IN WHOLE OR IN PART, WITHOUT THE WRITTEN AUTHORIZATION OF CARRIER CORPORATION.
1 DEC 2 DEC 3 DEC ANG
MATERIAL
----
- - -
AUTHORIZATION NUMBER TITLE
1041738
CURB ASY, ROOF
ENGINEERING MANUFACTURING
(004-007)
ENGINEERING REQUIREMENTS
----
SIZE DRAWING NUMBER REV
T-005, Y-002
DRAFTER CHECKER D48TC400427 B
WEIGHT:
-MMC 06/17/11 - -
SHEET 5 OF 5
SURFACE FINISH MFG/PURCH MODEL (INTERNAL USE ONLY) NEXT DRAWING SCALE DISTRIBUTION
- PURCH - N/A MMC
NOTES: 1. ROOFCURB ACCESSORY IS SHIPPED DISASSEMBLED. 2. INSULATED PANELS: 25.4 [1"] THK. POLYURETHANE FOAM, 44.5 [1-3/4] # DENSITY. 3. DIMENSIONS IN [ ] ARE IN MILLIMETERS. 4. ROOFCURB: 18 GAGE STEEL. 5. ATTACH DUCTWORK TO CURB. (FLANGES OF DUCT REST ON CURB). 6. SERVICE CLEARANCE 4 FEET ON EACH SIDE. 7. DIRECTION OF AIR FLOW. 8. CONNECTOR PACKAGE CRBTMPWR001A01 IS FOR THRU-THE-CURB GAS TYPE PACKAGE CRBTMPWR003A01 IS FOR THRU-THE-BOTTOM TYPE GAS CONNECTIONS.
TYPICAL (4) SIDES
SUPPLY AIR RETURN AIR
ROOFING MATERIAL (FIELD SUPPLIED)
CANT STRIP (FIELD SUPPLIED)
ROOFING FELT (FIELD SUPPLIED)
COUNTER FLASHING (FIELD SUPPLIED)
UNIT
GASKET
(SUPPLIED WITH CURB)
RIGID INSULATION (FIELD SUPPLIED)
DUCT
(FIELD SUPPLIED)
NAIL (FIELD SUPPLIED)
CERTIFIED DRAWING
VIEW "B"
CORNER DETAIL
SEE VIEW "B"
RETURN AIR
SUPPLY AIR
SUPPLY AIR OPENING
RETURN AIR OPENING
GAS SERVICE PLATE THRU THE CURB DRILL HOLE
2" [50.8] @ ASSEMBLY (IF REQUIRED) (SEE NOTE #8)
SEE NOTE #2
11 3/4"[298.5] WIDE INSULATED DECK PANELS
8 9/16"[217.5] WIDE INSULATED DECK PANEL
1/3/4"[44.5]
SCALE 0.250
E-E
SECTION
Fig. 6 - Roof Curb Details
NOTE: The 40QQ does not include gas heat. Ignore all gas references in the roof curb drawing above.
40QQ

10
A-B
0.5” (13)
B-C
1.0” (25)
A-C
1.0” (25)
MAXIMUM ALLOWABLE
DIFFERENCE IN. (MM)
Fig. 7 - Unit Leveling Tolerances
Step 5 — Field Fabricate Ductwork
Cabinet return-air static pressure (a negative condition)
shall not exceed 0.35 inch wg (87 Pa) with economizer or
0.45 inch wg (112 Pa) without economizer.
For vertical ducted applications, secure all ducts to roof
curb and building structure.
Do not connect ductwork to unit.
Fabricate supply ductwork so that the cross- sectional
dimensions are equal to or greater than the unit supply
duct opening dimensions for the first 18 inches (458 mm)
of duct length from the unit basepan.
Insulate and weatherproof all external ductwork, joints,
and roof openings with counter flashing and mastic in
accordance with applicable codes.
Ducts passing through unconditioned spaces must be
insulated and covered with a vapor barrier.
If a plenum return is used on a vertical unit, the return
should be ducted through the roof deck to comply with
applicable fire codes.
PROPERTY DAMAGE HAZARD
Failure to follow this caution may result in damage
to roofing materials.
Membrane roofs can be cut by sharp sheet metal
edges. Be careful when placing any sheet metal parts
on this type of roof.
CAUTION
!
For Optional Electric Heaters —
All installations require a minimum clearance to
combustible surfaces of 1 inch (25 mm) from the duct for
the first 12 inch (305 mm) away from unit.
NOTE: A 90 degree elbow must be provided in the
ductwork to comply with UL (Underwriters Laboratories)
code for use with electric heat.
PERSONAL INJURY HAZARD
Failure to follow this warning could cause personal
injury.
For vertical supply and return units, tools or parts
could drop into ductwork and cause an injury. Install
a 90 degree turn in the return ductwork between the
unit and the conditioned space. If a 90 degree elbow
cannot be installed, a grille of sufficient strength and
density should be installed to prevent objects from
falling into the conditioned space. Due to electric
heater, the supply duct will require a 90°degree
elbow.
!WARNING
Step 6 — Rig and Place Unit
Keep unit upright and do not drop. Spreader bars are not
required if top crating is left on unit. Rollers may be used
to move unit across a roof. Level by using the unit frame
as a reference. See Table 3 and Fig. 8 for additional
information.
Lifting holes are provided in base rails as shown in Fig. 8.
Refer to rigging instructions on unit.
Before setting unit onto curb, recheck gasketing on curb.
Rigging materials under unit (cardboard or wood) must be
removed PRIOR to placing the unit on the roof curb.
When using the standard side drain connection, ensure the
red plug in the alternate bottom connection is tight. Do this
before setting the unit in place. The red drain pan plug can
be tightened with a 1/2 inch square socket drive extension.
For further details see “Step 8 - Install External Condensate
Trap and Line.”
UNIT DAMAGE HAZARD
Failure to follow this caution may result in
equipment damage.
All panels must be in place when rigging. Unit is not
designed for handling by forklift when packaging is
removed.
If using the top crate as spreader bar once unit is set,
carefully lower wooden crate off of the building roof
top to the ground. Ensure that no people or
obstructions are in the way before lowering the crate.
CAUTION
!
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11
Fig. 8 - Rigging Label
40QQ

12
PositioningonCurb—
Position the unit on the roof curb so that the following
clearances are maintained:
S1/4 inch (6.4 mm) clearance between the roof curb and
the base rail inside the front and rear
S0.0 inch clearance between the roof curb and the base
rail inside on the duct end of the unit
This will result in the distance between the roof curb and
the base rail inside on the control box end of the unit
being approximately 1/4 inch.
Although the unit is weatherproof, guard against water
from higher level runoff and overhangs.
After the unit is in position, remove the rigging skids and
shipping materials.
Step 7 — Convert to Horizontal and Connect
Ductwork (when required)
The unit is shipped in the vertical duct configuration. Units
without the factory- installed economizer or return air smoke
detector option may be field- converted to horizontal ducted
configuration. To convert to horizontal configuration,
remove screws from the side duct opening covers and
remove the covers. Using the same screws, install the covers
on vertical duct openings with the insulation- side down.
Seals around duct openings must be tight. See Fig. 9.
Fig. 9 - Horizontal Conversion Panels
The notches are covered by the tape used to secure the
insulation to the basepan. See Figure 10 for the position of
the notches in the basepan.
Fig. 10 - Horizontal Conversion Panels
The seal around duct openings must be tight. Secure with
screws as shown in Figure 11. Cover seams with foil tape.
Fig. 11 - Horizontal Conversion Panels
Step 8 — Install External Condensate Trap and
Line
Unit has one 3/4 inch condensate drain connection on end
of condensate pan and an alternate connection on bottom.
See Fig. 12. Unit airflow configuration does not determine
which drain connection to use. Either drain connection
can be used with vertical or horizontal applications.
DRAIN
(FACTORY-INSTALLED)
PLUG
CONDENSATE PAN (SIDE VIEW)
STANDARD
SIDE DRAIN
ALTERNATE
BOTTOM DRAIN
Fig. 12 - Condensate Drain Pan (Side View)
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13
To use the alternate bottom drain connection, remove the
red drain plug from the bottom connection (use a 1/2 inch
square socket drive extension), and install it in the side
drain connection.
The piping for the condensate drain and external trap can
be completed after the unit is in place. See Fig. 13.
NOTE: Trap should be deep enough to offset maximum unit static
difference. A 4” (102) trap is recommended.
MINIMUM PITCH
1” (25mm) PER
10’ (3m) OF LINE
BASE RAIL
OPEN
VENT
TO ROOF
DRAIN
DRAIN PLUG
ROOF
CURB
SEE NOTE
2˝(51) MIN
Fig. 13 - Condensate Drain Piping Details
All units must have an external trap for condensate
drainage. Install a trap at least 4 inches (102mm) deep and
protect against freeze-up. If drain line is installed
downstream from external trap, pitch line away from the
unit at 1 inch per 10 feet (25mm per 3m) of run. Do not
use a pipe size smaller than the unit connection (3/4 inch).
Step 9 — Make Electrical Connections
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal
injury or death.
Unit cabinet must have an uninterrupted, unbroken
electrical ground to minimize the possibility of
personal injury if an electrical fault should occur. This
ground may consist of an electrical wire connected to
the unit ground lug in the control compartment, or
conduit approved for electrical ground when installed
in accordance with NEC; ANSI/NFPA 70, latest
edition (in Canada, Canadian Electrical Code CSA
[Canadian Standards Association] C22.1), and local
electrical codes.
!WARNING
NOTE: Field- supplied wiring shall conform to the
limitations of minimum 63_F(33_C) rise.
Field Installed Smoke Detector
Field installed Smoke Detector by 3rd party
When smoke detector is required by the building codes, it
must be installed and wired by a third- party
vendor. Carrier offers the Totaline®4- Wire Duct Smoke
detector model# P270- 3000PL. Recommended wiring
requires using the dry contacts to cut power to the L1 or
L2 power wiring coming into TB1.
Typical Sequence of Operation:
Smoke Detector error
SDry contacts on smoke detector open/close
SL2 is opened and power is removed from fan coil
SVRF CDU has error due to lost fan coil
Smoke Detector returns to normal operation after
error
SDry contacts on smoke detector open/close
SL2 has continuity to the FCU
SVRF CDU can regain communication to FCU
Step 10 — Install Accessories
Available accessories include:
SCurb
SElectric heaters and single- point connection kits
SEconoMi$er X (with control)
Table 4 – Factory Default DIP Switch Settings for Fan
Control Board
DIP Switch
1 2 TON
OFF OFF 036
ON OFF 048
OFF ON 060
ON ON Spare
HORIZONTAL AND VERTICAL
ECONOMI$ER X ACCESSORY
INSTALLATION INSTRUCTIONS
Read these instructions completely before attempting to
install the Horizontal EconoMi$er X Accessory.
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, labels attached to the unit, and other safety
precautions that may apply. Follow all safety codes. Wear
safety glasses and work gloves.
40QQ

14
CAUTION
!
CUT HAZARD
Failure to follow this warning could 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 roof top units.
GENERAL
IMPORTANT: These economizers meet all economizer
requirements as laid out in California’s Title 24
mandatory section 120.2 (fault detection and diagnostics).
The EconoMi$er X system utilizes the latest technology
available for integrating the use of free cooling with
mechanical cooling for packaged rooftop units. The
solid- state control system optimizes energy consumption,
zone comfort, and equipment cycling by operating the
compressor and PMV when the outdoor- air temperature is
too warm, integrating the compressor and PMV with
outdoor air when free cooling is available and closing the
PMV when outdoor- air temperature is too cold. Demand
control ventilation is supported.
The EconoMi$er X system utilizes gear- drive technology
with a direct- mount spring return actuator that will close
upon loss of power. The EconoMi$er X system comes
standard with an outdoor air temperature sensor, mixed air
(or supply air) temperature sensor.
Standard barometric relief dampers provide natural
building pressurization control.
Table 5 – Type Horizontal and Vertical
All Sizes
Type Part Number
Horizontal CRECOMZR077A00
Vertical CRECOMZR076A00
B
A
HOOD
ALUMINUM
FILTER
FILTER
CLIP
CLEANABLE
ALUMINUM
FILTER
OUTSIDE AIR
RELIEF AIR
Economizer P/N A B Ship Wt.
CRECOMZR077A00 27.09” 29.19” 95 lb
CRECOMZR076A00 33.37” 17.43” 55 lb
Fig. 14 - EconoMi$er X Hood Detail
Table 6 – Package Contents
Package Number Qty. Contents
CRECOMZR077A00
1
1
1
18
1
1
1
1
Hood Assembly
Filter Access Door
Aluminum Filter
Screws
EconoMi$er X Assembly
Front Blank Off Panel
HH79ZZ007 Mixed Air
Temperature Sensor/Harness
48TMHSRSE- A20 Harness
CRECOMZR076A00
1
1
2
1
1
1
Hood Top and Sides
Hood Divider
Aluminum Filters
Econimizer X Assembly
HH79ZZ007 Mixed (Supply)
Temperature Sensor
48TMHSRSE- A20 Harness
Table 7 – EconoMi$er X Sensor Usage
Application
Economi$er X with Outdoor Air Dry Bulb
Sensor
Accessories Required
Outdoor Air Dry
Bulb HH79ZZ007 is factory installed on economizer
Supply (mixed
air sensor)
HH79ZZ007 is factory provided and field
installed
INSTALLATION - HORIZONTAL
1. Turn off unit power supply(s) and install lockout tag.
2. Remove the existing unit filter access panel. Raise the
panel and swing the bottom outward. The panel is
now disengaged from the track and can be removed
and discarded. See Fig. 16.
WARNING
!
ELECTRIC SHOCK HAZARD
Failure to follow this warning could result in
personal injury or death.
Disconnect power supply and install lockout tag
before attempting to install accessory.
3. Remove the indoor coil access panel and discard. See
Fig. 16.
4. The EconoMi$er X hood assembly is shipped
assembled. Aluminum filter must be installed on
some models.
5. Set the EconoMi$er X upright. See Fig. 17.
6. Insert the EconoMi$er X assembly into the rooftop
unit positioning the EconoMi$er X to the far left side
of the opening. See Fig5. 19 and 20.
7. Slide the EconoMi$er X all the way back into the unit
until it locks into the horizontal opening of the unit.
8. Secure the EconoMi$er X mounting flanges to the
unit with the screws provided. See Fig. 19.
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15
9. Install a screw through the pre- punched hole in the
EconoMi$er X into the flange on the horizontal duct
opening. See Fig. 20.
10. Remove the tape securing the relief dampers in place.
11. Remove and save the 12- pin jumper plug from the
unit wiring harness, which is located in the upper left
corner of the unit. Insert the EconoMi$er X plug into
the unit wiring harness.
HH7922007
Fig. 15 - Horizontal EconoMi$er X Component
Locations
Outdoor-Air Opening and
Indoor Coil Access Panel
Filter Access Panel
Fig. 16 - Typical Outdoor Air Section Access Panel
Locations
Fig. 17 - Horizontal EconoMi$er X Positioned for
Installation in Unit
Fig. 18 - Top View of Horizontal EconoMi$er X
Installation
Barometric
Relief Dampers
Outside Air
Temperature
Sensor
HVAC
Filters
Outdoor
Air Damper
Mounting
Screws
Fig. 19 - Horizontal EconoMi$er X Installed in Unit
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16
Filters
EconoMi$er X
Plug EconoMi$er X
Actuator
Screw
Wiring
Harness
Fig. 20 - Top View of Horizontal EconoMi$er X
Installed in Unit
NOTE: The 12- pin jumper plug should be saved for
future use if the EconoMi$er X is removed from the unit.
The jumper plug is not needed as long as the EconoMi$er
X is installed.
12. Remove indoor fan motor access panel. See Fig. 21.
Indoor Fan Motor
Access Panel
Thermostat
Connection
A
ccess Panel
Center Post
Fig. 21 - Typical Indoor Fan Motor Access Panel
Locations
13. The mixed (or supply) air temperature sensor looks
like an eyelet terminal with wires running to it. The
sensor is located on the “crimp end” and is sealed
from moisture. Locate the sensor in the economizer
hardware bag. Mount the mixed air temperature
sensor (provided) to the lower left section of the
indoor fan blower housing. See Fig. 22. Use the screw
provided and use existing hole. Locate the orange and
brown wires in the wire bundle in the indoor fan
section. Connect the orange and brown wires to the
corresponding connections on the mixed air
temperature sensor. See Figs. 73 and NO TAG
(Wiring Diagrams). Reinstall indoor fan motor access
panel.
Fig. 22 - Mixed Air Sensor Placement
14. While everything is open, install and wire any other
accessories and/or sensors as applicable and
convenient per their installation instructions and/or
the Configuration section of this instruction. Some
accessories require that unit ducting already be
installed.
15. On some units, the EconoMi$er X and hood do not
reach to the top of the unit. In this case, a front
blank- off panel must be installed. Install provided
front blank- off panel above hood. Screw in place. See
Fig. 24.
NOTE: The front blank- off panel must be installed
before the hood because the top of the hood fits into a
channel in the bottom of the panel.
16. Install the EconoMi$er X hood over the EconoMi$er
X. Use screws provided. See Fig. 23 and 24. Insert
screw through right side flange of hood into
EconoMi$er X flange.
EconoMi$er X
Hood
Access Door
to Filters
Fig. 23 - EconoMi$er X Hood Installation
EconoMi$er X
Hood
Access Door
to Filters
Front Blank-Off Panel
Fig. 24 - Front Blank- Off Panel Installation Panel
17. On some units, the return damper does not reach to
the top of the horizontal return opening in the unit. In
this case, a horizontal blank- off must be installed.
Install the horizontal blank- off at the top of the
horizontal return opening. See Fig. 27. Screw in place
through pre- punched holes.
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17
18. When W7220 EconoMi$er controller is shipped, it is
mounted to a steel bracket. This bracket is not used,
so remove and discard it. Controller is also shipped
with two harnesses, which will not be used, so
disconnect them from the W7220 and discard them.
19. Install the controller in the top left corner of the unit
control box as show in Figs. 73 and NO TAG (Wiring
diagrams). Attach it with 2 screws.
20. The harness that connects to relays to the right side of
the W7220 is screwed to the control box (part number
40QQHSRSA—A20). Install this per wiring diagram.
See Figs. 73 and NO TAG.
21. Connect all connectors on left side of the W7220 to
the corresponding terminals per the wiring diagram.
See Figs. 73 and NO TAG.
22. Connect unit plug 40QQHSRSA- A00 to PL6 on the
economizer.
Fig. 25 - Honeywell W7220 Location
Fig. 26 - Honeywell 7220 Connections
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18
23. Check all wiring for safety then reapply power to the
unit. Verify correct operation and setting of the
accessory(s) per the Configuration and Operations
sections of the instruction.
24. Install access door next to hood. Screw bottom of
door to HVAC unit. See Fig. 23. Use standard serrated
screws along bottom of panel for all units.
25. Replace the indoor fan motor access panel.
26. Install the hood filter by opening the filter clips,
which are located underneath the hood top. Insert the
aluminum filter into the bottom filter rack (hood
divider). Push the filter into position past the open
filter clips. Close the filter clips to lock the filter into
place. See Fig. 23 and 24.
EconoMi$er X
Hood
Horizontal
Blank-Off
Front Blank-Off Panel
Fig. 27 - Horizontal Return Opening Blank- Off Panel
INSTALLATION - VERTICAL
1. Turn off unit power supply(s) and install lockout tag.
2. Remove the existing unit filter access panel. Raise the
panel and swing the bottom outward. The panel is
now disengaged from the track and can be removed
and discarded. See Fig. 29.
WARNING
!
ELECTRIC SHOCK HAZARD
Failure to follow this warning could result in
personal injury or death.
Disconnect power supply and install lockout tag
before attempting to install accessory.
3. Remove the indoor coil access panel and discard. See
Fig. 30.
4. The EconoMi$er X hood assembly is shipped
assembled. Aluminum filter must be installed on
some models.
5. Set the EconoMi$er X upright. See Fig. 30.
6. Insert the EconoMi$er X assembly into the rooftop
unit positioning the EconoMi$er on the bottom left of
the opening.
7. Secure the EconoMi$er X mounting flanges to the
unit with the screws provided. See Fig. 30.
Follow the instructions for the horizontal economizer
from step 10 onwards.
HH79ZZ007
Outside Air
Temperature
Sensor
Actuator
(Hidden)
Wiring
Harness
HH57AC081
Enthalpy Accessory
Location (Field
Installed)
Fig. 28 - Vertical EconoMi$er X Component
Locations
Outdoor-Air Opening and
Indoor Coil Access Panel
Filter Access Panel
Fig. 29 - Typical Outdoor Air Section Access Panel
Locations
HVAC Unit Filters
Insert
Screw in
EconoMi$er X
Flanges
Wiring
Harness
EconoMi$er X
Fig. 30 - EconoMi$er X Installed in HVAC Unit
EconoMi$er IV Rear Flange
Unit Filter
Rack
Unit Base
EconoMi$er X
Hold Down Tab
EconoMi$er X
Fig. 31 - Top View of Vertical EconoMi$er X
Installation
40QQ

19
EconoMi$er X
The field- installed accessory consists of the following:
SEconomizer assembly
SW7220 economizer controller
SHH79ZZ007 mixed (or supply) air sensor
SHH79ZZ007 outside air temperature sensor
S48TMHSRSE-A20 harness
W7220 Economizer
The economizer controller used on electro mechanical
units is a Honeywell W7220, which is to be located in the
RTU base unit’s Control Box. See the Installation
Instruction for your base unit for the location of the
Control Box access panel.
The W7220 controller provides the following”
S2-line LCD interface screen for setup, configuration and
troubleshooting
SOn-board fault detection and diagnostics
SSensor failure loss of communications identification
SAutomatic sensor detection
SCapabilities for use with multiple-speed indoor fan systems
User Interface
The user interface consists of an LCD display and a
4- button keypad on the front of the economizer controller.
Keypad
The four navigation buttons are used to scroll through the
menus and menu items, select menu items, and change
parameter and configuration settings. See Fig. 32.
Fig. 32 - W7220 Controller
Using the Keypad with Menus
To use the keypad when working with menus:
SPress (Up arrow) button to move to previous menu.
SPress (Down arrow) button to move to next menu.
SPress (Enter) button to display first item in
currently displayed menu.
SPress (Menu Up/Exit) button to exit a menu’s item
and return to the list of menus.
Using the Keypad with Settings and
Parameters
To use the keypad when working with Setpoints, System
and Advanced Settings, Checkout tests, and Alarms:
1. Navigate to desired menu.
2. Press (Enter) button to display first item in the
currently displayed menu.
3. Use and buttons to scroll to desired parameter.
4. Press (Enter) button to display value of the
currently displayed item.
5. Press button to increase (change) the displayed
parameter value.
6. Press button to decrease (change) the displayed
parameter value.
NOTE: When values are displayed, pressing and holding
or button causes the display to automatically
increment.
7. Press (Enter) button to accept the displayed value
and store it in nonvolatile RAM.
8. “CHANGE STORED” displays.
9. Press (Enter) button to return to current menu
parameter.
10. Press (Menu Up/Exit) button to return to previous
menu.
Menu Structure
Table 8 illustrates the complete hierarchy of menus and
parameters for the EconoMi$er X system.
The Menus in display order are:
SSTATUS
SSETPOINTS
SSYSTEM SETUP
SADVANCED SETUP
SCHECKOUT
SALARMS
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20
IMPORTANT: The default setting on the W7220 controller is for a “Fan Type” with 2 speeds, which is correct for 2 or 3
speed units.
IMPORTANT: Table 8 illustrates the complete hierarchy. Your menu parameters may be be different depending on your
computer configuration.
Table 8 – Menu Structurea
Menu Parameter
Parameter
Default
Value
Parameter range
and
Incrementb
Notes
Status
ECON AVAIL NO YES/NO YES = economizing available; the system can use outside air for free cooling
when required
ECONOMIZING NO YES/NO YES = outside air being used for 1st stage cooling
OCCUPIED NO YES/NO
YES = OCC signal received from space thermostat or unitary controller
YES = 24 VAC on terminal OCC
NO = 0 VAC on terminal OCC
HEAT PUMP N/A°
COOL
HEAT Displays COOL or HEAT when system is set to heat pump (Non- conventional)
COOL Y1- IN OFF ON/OFF
Y1- I signal from space thermostat or unitary controller for cooling stage 1
ON = 24 VAC on terminal Y1- I
OFF = 0 VAC on terminal Y1- I
COOL Y1- OUT OFF ON/OFF Cool stage 1 Relay Output to stage 1 mechanical cooling (Y1- OUT terminal)
COOL Y2- IN OFF ON/OFF
Y2- I signal from space thermostat our unitary controller for second stage cooling
ON = 24 VAC on terminal Y2- I
OFF = 0 VAC on terminal Y2- I
COOL Y2- OUT OFF ON/OFF Cool Stage 2 Relay Output to mechanical cooling (Y2- OUT terminal)
MA TEMP __._° F 0 to 140° F Displays value of measured mixed air from MAT sensor. Displays _ _ . _ ° F if not
connected, short or out - of- range
DA TEMP __._° F 0 to 140° F
Displays when Discharge Air sensor is connected and displays measured
discharge temperature
Displays _ _ . _° F if sensor sends invalid value, if not connected, short or
out- of- range
OA TEMP __._° F - 40 to 140° F Displays measured value of outdoor air temperature. Displays _ _ _° F if sensor
sends invalid value, short or out- of- range
OA HUM __% 0 to 100% Displays measured value of outdoor humidity from OA sensor
Displays _ _% if not connected short, or out - of- range
RA TEMP __._° F 0 to 140° F
Displays measured value of return air temperature from RAT sensor
Displays _ _ . _° F if sensor sends invalid value, if not connected, short or out-
of- range
RA HUM __% 0 to 100%
Displays measured value of return air humidity from RA sensor
Displays _ _% if sensor sends invalid value, if not connected, short or
out- of- range
IN CO2 ___ppm 0 to 2000 ppm Displays value of measured CO2from CO2sensor. Invalid if not connected, short
or out- of- range
DCV STATUS N/A ON/OFF Displays ON if above setpoint and OFF if below setpoint, and ONLY if a CO2
sensor is connected
DAMPER OUT 2.0V 2.0 to 10.0V Displays voltage output to the damper actuator
EXH1 OUT OFF ON/OFF Output of EXH1 terminal: ON = relay closed, OFF = relay open
EXH2 OUT OFF ON/OFF Output of AUX terminal; displays only if AUX = EXH2
ERV OFF ON/OFF Output of AUX terminal; displays only if AUX = ERV
MECH COOL ON 0, 1, or 2 Displays stage of mechanical cooling that is active
40QQ