Inst man Hori Econ DM 78-150

Inst man Hori Econ DM 78-150
INSTALLATION
INSTRUCTIONS
INSTALLATION INSTRUCTIONS
HORIZONTAL ECONOMIZER ACCESSORY
MODEL 2EE04703324
FOR 6.5 THRU 12.5 TON SINGLE PACKAGE EQUIPMENT
MODEL AIR CONDITIONERS
General
The instruction provides all the necessary information to properly field install this economizer on the above indicated
equipment.
Economizer Model 2EE04703324 has a single input solid state enthalpy sensor that provides automatic 100% outdoor air
capability with 2% leakage.
Refer to the respective unit wiring diagram for information regarding electrical circuitry on the economizer.
A relief air damper for barometric air balance is provided with each basic unit and is mounted on the face of the return air
damper section. Refer to the basic unit installation instruction for additional information.
PANELS TO BE REMOVED
FRESH AIR DAMPER
RETURN AIR DAMPER
Step 1:
Verify all unit parts in box.
a.
b.
c.
1 ea. - Return Air Damper
1 ea. - Fresh Air Damper
1 ea. - Hood Package
1 ea. - Fresh Air Hood
1 ea. - 22“ x 30 18“ x 1” Mist Eliminator Filter
1 ea. - Hardware Bag:
21 ea. - Type A #10 - 16 x ½ Screws
4 ea. - Self tapping #10 - 16 x ½ Screws
10 ft. - 18 x 12 Gasket
HOOD PACKAGE
INSTALLATION
INSTRUCTIONS
INSTALLATION INSTRUCTIONS
HORIZONTAL ECONOMIZER ACCESSORY
MODEL 2EE04703324
Step 2:
Remove the Discharge Air Sensor from the fresh air damper
and save for later installation (Step 12).
Step 3:
To assemble the Fresh Air Hood use the Type A #10-16 x ½
screws (Qty 21) provided.
DISCHARGE AIR SENSOR
Follow these steps:
A. Take (1) and align holes of (2) with holes of (1)
and screw in place.
B. Take (3 & 5) and align holes of (4) with holes of
(3 & 5) and screw in place.
C. Take (1) and (3) put the flange of (1) to the inside
of (2) and screw in place.
D. Take (5) and screw in place like Step C.
E. Take (6) and place flanges over (3 & 5) and
secure.
F. Slide filter (7) into (4).
G. Take (8) and do the same as Step E.
(6)
(8)
(5)
ALIGN HOLES
(4)
Set Fresh Air Hood to the side for use in Step 10.
(2)
31 1116
18
(3)
1
2
(1)
12
1
4
21 9 16
Step 4:
Remove the return air duct cover and the two (2) rear panels
from the end of the unit as shown. Keep screws to use later in
Steps 10 and 13.
HORIZONTAL DUCT OPENING WITH
COVER AND END PANELS REMOVED
ALIGN HOLES
(7)
INSTALLATION
INSTRUCTIONS
INSTALLATION INSTRUCTIONS
HORIZONTAL ECONOMIZER ACCESSORY
MODEL 2EE04703324
HOLES TO ATTACH FRESH AIR DAMPER
Step 5:
Install the return air damper into the horizontal return air duct
opening as shown. Using the self tapping #10 - 16 x ½ screws
provided secure to duct connection (two on each side). The two
holes with bushings will be on the right hand side and the
damper bracket will be on the damper bottom inside the unit.
TWO HOLES WITH BUSHINGS
DAMPER BRACKET
Step 6:
Slide the fresh air damper into the unit as shown using some of
the screws removed in Step 5.
Step 7:
Secure the fresh air damper to the unit with the screws removed
in Step 4 though the slotted holes in the damper section.
Do Not tighten screws at this time.
Step 8:
Connect the linkage from the fresh air damper to the return air
damper. The linkage rod is shipped connected to the fresh air
damper. To connect the linkage to the return air damper, open
the return air damper and insert the rod through the opening in
the damper bracket. With the rod through the return air
damper bracket, close the return air damper tightly, and
tighten the set screw on the return air damper bracket as
shown.
Note: Linkage rod should be flush with the back of the
return air damper bracket.
INSTALLATION
INSTRUCTIONS
INSTALLATION INSTRUCTIONS
HORIZONTAL ECONOMIZER ACCESSORY
MODEL 2EE04703324
Step 9:
Plug the economizer cable into the unit as shown. The
“jumper” plug that ships with the unit should be removed and
saved in the control compartment for future needs.
ECONOMIZER CABLE
Step 10:
Install the assembled Fresh Air Hood as shown. Using the
“keyhole” slots on the barometric relief hood, place the
barometric relief hood over the screws and slide down into the
slots and tighten screws in place.
This is the time to tighten all screws that were previously
not tightened.
FLANGE ON HOOD SIDE
Step 11:
If the barometric relief is to be installed cut a 20” x 21” hole in
the return air duct near the Economizer. (Note: Barometric
relief must be ordered separatley.
Step 12:
Secure barometric releif damper over hole in return air duct
using (8) screws.
20
24
20
7
27
3
8
RETURN DUCT 24 3 4
4
BAROMETRIC RELIEF DAMPER
(1RD0411)
INSTALLATION
INSTRUCTIONS
INSTALLATION INSTRUCTIONS
HORIZONTAL ECONOMIZER ACCESSORY
MODEL 2EE04703324
Step 13:
Reinstall the top rear panel which was removed in Step 5 of
the unit using the remaining screws also removed in Step 5.
TOP REAR PANEL
Step 14:
The Discharge Air Sensor installs in the blower compartment
of the unit. Open the access door to the blower and you will
see a cable on the left side. The cable has two wires with
insulated connectors that the Discharge Air Sensor plugs into.
These wires are shown in the photo. Plug the Discharge Air
Sensor wires into those provided inside the unit, and using a
wire tie, strap the Discharge Air Sensor to the cable as shown
below.
DISCHARGE AIR SENSOR WIRES
CONTROL
CURVE
CONTROL POINT
APPROX. oF (o C)
AT 50% RH
A
73 (23)
B
70 (21)
C
67 (19)
D
63 (17)
WIRE TIE
DISCHARGE AIR SENSOR
APPROXIMATE DRY BULB TEMPERATURE - oF ( oC)
1 HIGH LIMIT CURVE FOR W6210D, W7210D, W7459D.
JULY 21, 2001
035-18287-000-A-0701
S7/P7
ECONOMIZER SECTION SOCKET
/PLUG CONNECTION
DAS
DISCHARGE AIR SENSOR
S12/P12 POWER EXHAUST SOCKET/PLUG
CONNECTION
M5
POWER EXHAUST CONTACTOR
RC
CAPACITOR
ES1
POWER EXHAUST END SWITCH
NOTES:
1. ALL FIELD WIRING TO BE ACCOMPLISHED FOLLOWING CITY, LOCAL
AND/OR NATIONAL CODES IN EFFECT AT TIME OF INSTALLATION OF
THIS UNIT.
2. CAUTION: LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN
SERVICING CONTROLS. WIRING ERRORS CAN CAUSED IMPROPER AND
DANGEROUS OPERATION. IF ANY OF THE WIRE, AS SUPPLIED WITH THE
UNIT MUST BE REMOVED. IT MAY BE REPLACED WITH TYPE 105
DEGREE C, GOO VOLT WIRE OR EQUIVALENT CLEARLY RENUMBERED
FOR IDENTIFICATION. VERIFY PROPER OPERATION AFTER SERVICING.
3. WHEN ECONOMIZER IS INSTALLED REMOVE PLUG WITH JUMPER WIRE
816/Y
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