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CONTENTS
1 - SAFETY CONSIDERATIONS ................................................................................................................................................... 3
2 - GENERAL .................................................................................................................................................................................... 3
3 - INSTALLATION ......................................................................................................................................................................... 3
3.1 - Check jobsite .............................................................................................................................................................................. 3
3.2 - Check unit ................................................................................................................................................................................ 10
3.3 - Mounting the unit ..................................................................................................................................................................... 10
3.4 - Electrical wiring ....................................................................................................................................................................... 10
3.5 - Low voltage wiring .................................................................................................................................................................. 11
3.6 - Supply and return piping installation ....................................................................................................................................... 18
3.7 - Condensate piping installation ................................................................................................................................................. 18
4 - PRE-START-UP ....................................................................................................................................................................... 19
4.1 - System cleaning and flushing ................................................................................................................................................... 19
4.2 - System checkout ....................................................................................................................................................................... 19
5 - FIELD SELECTABLE INPUTS .............................................................................................................................................. 20
5.1 - Complete C control jumper settings (see Figs. 11 and 13) ....................................................................................................... 20
5.2 - Complete C control DIP switches ............................................................................................................................................ 20
5.3 - Deluxe D control jumper settings (see Figs. 12 and 14) .......................................................................................................... 20
5.4 - Deluxe D control DIP switches ................................................................................................................................................ 21
5.5 - Deluxe D control accessory relay configurations ..................................................................................................................... 21
5.6 - Water valve (slow opening) ..................................................................................................................................................... 21
6 - START-UP ................................................................................................................................................................................ 22
6.1 - Unit start-up/cooling ................................................................................................................................................................ 22
6.2 - Operating limits ........................................................................................................................................................................ 22
6.3 - Unit start-up/heating ................................................................................................................................................................. 22
6.4 - Flow regulation ........................................................................................................................................................................ 22
6.5 - Anti-freeze ................................................................................................................................................................................ 23
6.6 - Cooling tower/boiler systems ................................................................................................................................................... 23
6.7 - Ground coupled, closed loop and plateframe heat exchanger well systems ............................................................................. 23
7 - OPERATION ............................................................................................................................................................................. 24
7.1 - Power up mode ......................................................................................................................................................................... 24
7.2 - Units with Aquazone Complete C control ............................................................................................................................... 24
7.3 - Units with Aquazone Deluxe D control ................................................................................................................................... 24
8 - SYSTEM TEST ......................................................................................................................................................................... 25
8.1 - Test mode ................................................................................................................................................................................. 25
8.2 - Retry mode ............................................................................................................................................................................... 25
8.3 - Aquazone Deluxe D control LED indicators ............................................................................................................................ 25
9 - SERVICE ................................................................................................................................................................................... 26
9.1 - Unit inspection ......................................................................................................................................................................... 26
9.2 - System flushing ........................................................................................................................................................................ 26
9.3 - Water coil ................................................................................................................................................................................. 26
9.4 - Filters ........................................................................................................................................................................................ 26
9.5 - Refrigerant system .................................................................................................................................................................... 27
9.6 - Condenser cleaning .................................................................................................................................................................. 27
9.7 - Condensate pans ....................................................................................................................................................................... 27
9.8 - Blower motors .......................................................................................................................................................................... 27
9.9 - Compressor .............................................................................................................................................................................. 27
9.10 - Safety control reset ................................................................................................................................................................. 28
9.11 - Checking system charge ......................................................................................................................................................... 28
9.12 - Refrigerant charging ............................................................................................................................................................... 28
10 - TROUBLESHOOTING .......................................................................................................................................................... 28
10.1 - Thermistor .............................................................................................................................................................................. 28
11 - START-UP CHECKLIST - 50KQE R-407C UNIT ............................................................................................................. 32