4
Special Instructions
This coil comes equipped with a check style flowrator for refrig-
erant management. For most installations with matching ap-
plications, no change to the flowrator orifice is required. How-
ever, in mix-matched applications, a flowrator change may be
required. See the Piston Kit Chart or consult your local dis-
tributor for details regarding mix-matched orifice sizing. If the
mix-match application requires a different piston size, change
the piston in the distributor on the indoor coil before installing
the coil and follow the procedure shown below.
1. Loosen the 13/16 nut
1 TURN ONLY
to allow high pres-
sure tracer gas to escape. No gas indicates a possible
leak.
2. After the gas has escaped, remove the nut and discard
the plastic or brass cap.
3. Remove the check piston to verify it is correct and then
replace the piston. See piston kit chart in instructions.
4. Use a tube cutter to remove the spin closure on the suc-
tion line.
5. Slide the 13/16 nut into place on the tailpiece supplied in
the literature bag or with the unit.
6. Braze tailpiece to the line set liquid tube.
Figure 7
Flowrator
7. Insert the suction line into the connection, slide the insu-
lation and the rubber grommet at least 18" away from the
braze joint. Braze suction line.
8.
AFTER THE TAILPIECE HAS COOLED
, confirm posi-
tion of the white Teflon
®
seal and hand tighten the 13/16
nut.
9. Torque the 13/16 nut to 10-25 ft-lbs. or tighten 1/6 turn.
Excessive torque can cause orifices to stick. Use the proper
torque settings when tightening orifices.
CAUTION
10. Replace suction line grommet and insulation.
RUBBER
GROMMET
SUCTION LINE
WITH SPIN CLOSURE
Figure 8
Suction Line Grommet
11. Check fittings for leaks after complete installation. Evacu-
ate and charge on the low side.
NOTE:
With the piston in the distributor, the seal end should
point inside the distributor body and should not be seen when
looking into the end of distributor. Make sure the piston is free
to rotate, and move up and down in the distributor body.
IMPORTANT:
Note 2 in the Piston Kit Chart does not apply to
CH coils.
Aluminum Indoor Coil Cleaning
(Qualified Servicer Only)
This unit is equipped with an aluminum tube evaporator coil.
The safest way to clean the evaporator coil is to simply flush
the coil with water. This cleaning practice remains as the rec-
ommended cleaning method for both copper tube and alumi-
num tube residential cooling coils.
An alternate cleaning method is to use one of the products
listed in the following chart to clean the coils. The cleaners
listed are the only agents deemed safe and approved for use to
clean round tube aluminum coils.
TRADE NAME
PART /
PRODUCT
MANUFACTURER
EVAP-Green
4191-08
Nu-Calgon
Extreme Simply Green Aircraft
Precision Cleaner
13406
Sunshine Makers, Inc.
Approved Cleaners
NOTE:
Ensure coils are rinsed well after use of any chemical
cleaners.
is a registered trademark of Maytag Corporation or its related companies and is used under license. All rights reserved.
NOTE: SPECIFICATIONS AND PERFORMANCE DATA LISTED HEREIN ARE SUBJECT TO CHANGE WITHOUT NOTICE
5151 San Felipe, Suite 500, Houston, TX 77056
©
2005-2006, 2009-2013, 2015 Goodman Manufacturing Company, L.P.
Visit our website at
www.daikincomfort.com
,
www.goodmanmfg.com
or
www.amana-hac.com
for information on:
•
Products
•
Warranties
•
Customer Services
•
Parts
•
Contractor Program and Training
•
Financing Options
