Carrier Aqua Force 30XA Installation, Operation And Maintenance Instructions page 3

7 - WaTeR CONNeCTIONs ...................................................................................................................................................... 26
7.1 - Operating precautions .......................................................................................................................................................... .26
7.2 - Victaulic water connections .................................................................................................................................................. .27
7.3 - Flow control ........................................................................................................................................................................... .28
7.4 - Evaporator water box bolt tightening................................................................................................................................. .28
7.5 - Frost protection ..................................................................................................................................................................... .28
7.6 - Operation of two units in master/slave mode .................................................................................................................... .29
7.7 - Pump pressure/flow rate curves ........................................................................................................................................... .30
7.8 - Available static system pressure (optional hydronic module) ......................................................................................... .30
8 - fRee-COOlING OPTION ................................................................................................................................................... 31
8.1 - Characteristics ....................................................................................................................................................................... .31
8.2 - Operating limits ..................................................................................................................................................................... .31
8.3 - Operation ............................................................................................................................................................................... .31
9 - heaT ReClaIm CONDeNseR OPTION....................................................................................................................... 32
9.1 - Technical data, 30XA units with heat reclaim condenser option ..................................................................................... .32
9.2 - Dimensions, clearances ......................................................................................................................................................... .32
9.3 - Condenser location ............................................................................................................................................................... .36
9.4 - Condenser water connections .............................................................................................................................................. .36
9.5 - Operating limits for stable operation (no mode changeover) ......................................................................................... .36
9.6 - Operating limits for changeover between modes ............................................................................................................. .36
9.7 - Flow control ........................................................................................................................................................................... .37
9.8 - Heat reclaim operation ......................................................................................................................................................... .37
9.9 - Condenser pump selection ................................................................................................................................................... .37
9.10 - Frost protection ................................................................................................................................................................... .37
10 - majOR sysTem COmPONeNTs aND OPeRaTION DaTa ................................................................................. 38
10.1 - Direct-drive twin-screw compressor with variable capacity slide valve ....................................................................... .38
10.2 - Pressure vessels.................................................................................................................................................................... .38
10.3 - High-pressure safety switch ............................................................................................................................................... .39
10.4 - Condensers ........................................................................................................................................................................... .39
10.5 - Fans ....................................................................................................................................................................................... .39
10.6 - Electronic expansion valve (EXV) ................................................................................................................................... .39
10.7 - Moisture indicator ............................................................................................................................................................... .39
10.8 - Filter drier ............................................................................................................................................................................ .39
10.9 - Sensors .................................................................................................................................................................................. .39
11 - OPTIONs aND aCCessORIes ........................................................................................................................................ 41
12 - sTaNDaRD maINTeNaNCe .......................................................................................................................................... 42
12.1 - Level 1 maintenance (see note) ......................................................................................................................................... .42
12.2 - Level 2 maintenance (see note) ......................................................................................................................................... .42
12.3 - Level 3 (or higher) maintenance (see note) ..................................................................................................................... .42
12.4 - Tightening torques for the main electrical connections .................................................................................................. .42
12.5 - Tightening torques for the main bolts and screws ........................................................................................................... .43
12.6 - Condenser coil ..................................................................................................................................................................... .43
12.7 - Evaporator maintenance .................................................................................................................................................... .43
12.8 - Compressor maintenance ................................................................................................................................................... .44
12.9 - Precaution for compresssor power supply bus bar connection...................................................................................... .44
13 - sTaRT-UP CheCklIsT fOR 30Xa lIqUID ChIlleRs (Use fOR jOb fIle) ............................................... 45
The cover photograph is for illustrative purposes only and is not part of any offer for sale or contract.
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