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INSPECT UNIT — To prepare the unit for installation, com-
plete the procedures listed below:
1. Compare the electrical data on the unit nameplate with
ordering and shipping information to verify that the
correct unit has been shipped.
2. Verify that the unit is the correct model for the entering
water temperature of the job.
3. Do not remove the packaging until the unit is ready for
installation.
4. Verify that the refrigerant tubing is free of kinks or dents,
and that it does not touch other unit components.
5. Inspect all electrical connections. Be sure connections are
clean and tight at the terminals.
6. Compressors are internally spring-mounted. Compressors
equipped with external spring vibration isolators must
have bolts loosened and shipping clamps removed.
7. Remove any blower support cardboard from inlet of the
blower if present.
8. Locate and verify any accessory kit located in compressor
section.
9. Remove any access panel screws that may be difficult to
remove once unit is installed.
Step 3 — Location of Unit —
The following guide-
lines should be considered when choosing a location for
WSHP. Refer to Fig. 1 and 2 for unit dimensional data:
• Provide sufficient space for water, electrical and duct
connections
• Locate unit in an area that allows for easy access and
removal of filter and access panels
• Allow enough space for service personnel to perform
maintenance
Table 1 — Physical Data — Aquazone™ 50RTG03-20 Units
UNIT 50RTG 03 04 05 07 08 10 12 15 20
OPERATING WEIGHT (lb) 735 785 835 880 1080 1125 1175 1770 1960
SHIPPING WEIGHT (lb) 750 800 850 900 1100 1150 1200 1800 2000
REFRIGERANT TO AIR HEAT EXCHANGER
Face Area (sq ft) 5 5 5 7.5 9.3 9.3 10.5 20 20
Rows Deep 233333344
Copper Tube Size (in.)
3
/
8
3
/
8
3
/
8
3
/
8
3
/
8
3
/
8
3
/
8
3
/
8
3
/
8
No. Fins per Inch 12 12 12 12 12 12 12 12 12
REFRIGERANT CHARGE R-22/Ckt (oz) 52 68 86 132 68 86 88 141 160
NUMBER OF CIRCUITS 111122222
BLOWER DATA
Diameter (qty-in.) 1-10 1-10 1-10 1-12 1-15 1-15 1-15 2-15 2-15
Width (in.) 6 6 10 11 11 11 11 11 11
FILTER DATA
Size (in.) 16 x 20 16 x 20 16 x 20 16 x 20 16 x 20 16 x 20 16 x 20 16 x 20 16 x 20
Quantity 4444666106