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Carrier aquazone 50RTG, Installation, Start-Up And Service Instructions Manual

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Carrier aquazone 50RTG Installation, Start-Up And Service Instructions Manual Download Page 26

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

PC 111

Catalog No. 535-004

Printed in U.S.A.

Form 50R-2SI

Pg 26

8-02

Replaces: New

Book 1

4

Tab

5a 5a

Copyright 2002 Carrier Corporation

Summary of Contents for aquazone 50RTG

Page 1: ...l 19 Units with Aquazone Deluxe D Control 19 SYSTEM TEST 19 20 Test Mode 19 Retry Mode 20 Aquazone Deluxe D Control LED Indicators 20 SERVICE 20 22 Filters 20 Water Coil 20 Condensate Drain Pans 21 Refrigerant System 21 Condensate Drain Cleaning 21 Air Coil Cleaning 21 Condenser Cleaning 21 Checking System Charge 22 Refrigerant Charging 22 Air Coil Fan Motor Removal 22 TROUBLESHOOTING 22 25 Thermi...

Page 2: ... clearance for filter replacement and drain pan cleaning Do not allow piping conduit etc to block filter access 8 Provide sufficient access to allow maintenance and servicing of the fan and fan motor compressor and coils 9 Provide an unobstructed path to the unit Space should be sufficient to allow removal of unit if necessary 10 Provide ready access to water valves and fittings and screwdriver ac...

Page 3: ...cult 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 ...

Page 4: ...2 43 90 81 00 12 32 4 692 6 614 12 57 x 30 00 1 07 39 52 43 90 81 00 12 32 4 692 6 614 12 57 x 30 00 1 1 4 08 45 40 49 90 91 07 16 48 5 692 6 614 18 95 x 36 00 1 1 4 10 12 45 40 49 90 91 07 16 48 5 692 6 614 18 95 x 36 00 1 1 2 15 20 50 62 88 00 91 07 16 48 4 543 6 566 18 95 x 74 00 2 NOTES 1 All dimensions are in inches 2 Carrier works continuously to improve its products As a result the design a...

Page 5: ... CURB DIMENSIONS in A B C E F Return Air Transition Supply Air Transition G H J K G H J K 50RTGACURBCAAA 35 25 72 25 18 00 1 50 12 50 22 00 16 00 39 25 33 25 27 00 21 00 39 25 33 25 50RTGACURBBAAA 41 25 82 25 21 00 1 50 12 50 25 00 19 00 45 25 39 25 27 00 21 00 45 25 39 25 50RTGACURBAAAA 78 875 82 25 21 00 5 00 9 00 25 00 19 00 82 875 76 875 27 00 21 00 82 875 76 875 Fig 2 50RTG Roof Curb Dimensio...

Page 6: ...piping Piping systems utilizing water temperatures below 50 F require 1 2 in closed cell insulation on all piping surfaces to eliminate condensation All plastic to metal threaded fittings should be avoided due to the potential to leak Use a flange fitted substitute Teflon tape thread sealant is recommended to minimize internal fouling of the heat exchanger Use backup wrench Do not overtighten conn...

Page 7: ...e desired airflow performance Performance is selected by matching the desired performance with the appro priate region in Tables 4 12 Per the table notes regions desig nated by A B C and D represent motor drive options NOTE Factory installed sheaves are field adjustable Refer to Tables 4 12 for adjustment points Table 2 Water Quality Guidelines If the concentration of these corrosives exceeds the ...

Page 8: ...izer Relay EH1 Auxiliary Heat Stage 1 EH2 Auxiliary Heat Stage 2 ES Enthalpy Sensor FP1 Sensor Water Coil Freeze Protection FP2 Sensor Air Coil Freeze Protection HP High Pressure Switch JW1 Jumper Alarm Mode LAR Low Ambient Relay LOC Loss of Charge Pressure Switch MAS Mixed Air Sensor NEC National Electrical Code OAT Outside Air Thermostat PM Performance Monitor P1 Field Wiring Terminal Block RVS ...

Page 9: ... 0 2 3 9 2 1 70 Amp 55 8 460 60 3 10 0 70 0 2 3 4 3 1 35 Amp 26 8 575 60 3 8 2 54 0 2 3 3 4 1 30 Amp 21 9 20 208 230 60 3 33 3 232 0 2 5 13 2 1 125 Amp 88 1 460 60 3 17 0 116 0 2 5 6 6 1 60 Amp 44 9 575 60 3 12 8 97 0 2 5 5 6 1 45 Amp 34 4 FLA Full Load Amps HACR Heating Air Conditioning and Refrigeration LRA Lock Rotor Amps RLA Rated Load Amps SCFM AIRFLOW EXTERNAL STATIC PRESSURE in wg 0 1 0 2 0...

Page 10: ...6 0 80 0 85 0 89 0 94 0 97 1 01 1 06 RPM 832 878 923 967 1010 1053 1095 1136 1176 1219 Turns Out 3 0 2 5 1 5 1 0 0 0 3 0 2 5 2 0 1 5 1 0 1900 BHP 0 80 0 85 0 89 0 94 0 98 1 02 1 07 1 11 1 16 1 20 RPM 875 919 961 1003 1045 1086 1127 1166 1204 1242 Turns Out 2 5 1 5 1 0 0 0 3 0 2 5 2 0 1 5 1 0 0 5 BHP Brake Horsepower SCFM Standard Cubic Feet Per Minute SCFM AIRFLOW EXTERNAL STATIC PRESSURE in wg 0 ...

Page 11: ...091 1119 1147 1174 1202 1228 Turns Out 2 5 1 5 1 0 0 5 5 0 4 5 4 0 3 5 3 0 2 5 2 0 1 5 1 0 1 0 3250 BHP 1 60 1 67 1 75 1 83 1 90 1 98 2 06 2 13 2 22 2 30 2 39 2 48 2 56 2 65 RPM 915 945 974 1001 1029 1056 1082 1109 1135 1161 1187 1212 1238 1263 Turns Out 1 0 0 5 5 0 4 5 4 0 3 5 3 0 2 5 2 5 2 0 1 5 1 0 1 0 0 5 BHP Brake Horsepower SCFM Standard Cubic Feet Per Minute SCFM AIRFLOW EXTERNAL STATIC PRE...

Page 12: ...5 907 929 950 971 991 1012 Turns Out 3 5 3 0 4 5 4 5 4 0 3 5 3 0 2 5 2 0 1 5 1 0 1 0 0 5 4700 BHP 2 32 2 42 2 52 2 61 2 71 2 81 2 90 RPM 803 825 848 869 891 912 933 Turns Out 4 5 4 0 3 5 3 5 3 0 2 5 2 0 Operation Not Recommended 5000 BHP 2 76 2 86 2 96 RPM 847 868 889 Turns Out 3 5 3 5 3 0 BHP Brake Horsepower SCFM Standard Cubic Feet Per Minute SCFM AIRFLOW EXTERNAL STATIC PRESSURE in wg 0 2 0 3 ...

Page 13: ... 5 3 0 2 5 2 0 1 5 1 0 0 5 7000 BHP 2 05 2 19 2 34 2 49 2 64 2 79 2 95 3 10 3 26 3 41 3 56 3 73 3 88 RPM 625 654 683 710 737 764 790 815 840 864 888 911 934 Turns Out 4 0 3 0 2 5 2 0 1 0 4 0 3 5 3 0 2 5 2 0 1 5 1 0 0 5 7500 BHP 2 46 2 62 2 77 2 94 3 09 3 26 3 41 3 58 3 74 3 91 4 08 4 25 Operation Not Recommended RPM 660 687 714 740 766 791 816 840 864 887 910 933 Turns Out 3 0 2 5 1 5 1 0 4 0 3 5 ...

Page 14: ...e Y signal of the thermostat PRE START UP System Checkout When the installation is complete and the system is cleaned and flushed follow the System Checkout procedure outlined below 1 Voltage Ensure that the voltage is within the utilization range specifications of the unit compressor and fan motor 2 System Water Temperature Ensure that the system water temperature is within an acceptable range to...

Page 15: ...or 30 F To select 30 F as the limit DO NOT clip the jumper To select 10 F as the limit for anti freeze sys tems clip the jumper ALARM RELAY SETTING Select jumper 4 JW4 AL2 Dry for connecting alarm relay terminal AL2 to 24 vac R or to remain as a dry contact no connection To connect AL2 to R do not clip the jumper To set as dry contact clip the jumper LOW PRESSURE SETTING The D Control can be con f...

Page 16: ... the OVR input If OVR input becomes active then the D control will enter Night Low Limit NLL staged heating mode The NLL staged heating mode will then provide heating during the NSB period Water Valve Slow Opening If relay is config ured for Water Valve slow opening the relay will start 60 sec onds prior to starting compressor relay Outside Air Damper OAD If relay is configured for OAD the relay w...

Page 17: ...osition 2 Slowly turn the thermostat to a higher temperature until the compressor activates 3 Check for warm air delivery at the unit grille within a few minutes after the unit has begun to operate 4 Check the temperature of both supply and discharge water If temperature is within range proceed If tempera ture is outside the range check the heating refrigerant pressures 5 Once the unit has begun t...

Page 18: ...g water should be used to avoid freeze damage to the unit Once antifreeze is selected the JW3 jumper FP1 should be clipped on the control to select the low temperature anti freeze 13 F set point to avoid nuisance faults Table 17 Approximate Fluid Volume gal per 100 Ft of Pipe LEGEND NOTE Volume of heat exchanger is approximately 1 0 gallon Table 18 Antifreeze Percentages by Volume Cooling Tower Bo...

Page 19: ...n The EH1 output is turned on immediately With continuing Heat Stage 3 demand EH2 will turn on after 10 minutes EH1 and EH2 are turned off immediately when the Heating Stage 3 demand is re moved The control reverts to Heating Stage 2 mode Output EH2 will be off if FP1 is greater than 45 F AND FP2 when shorted is greater than 110 F during Heating Stage 3 mode This condition will have a 30 second re...

Page 20: ...onal Open Slow Flash Fault Retry Open Fast Flash Lockout Closed Slow Flash Over Under Voltage Shutdown Open Closed after 15 minutes Flashing Code 1 Test Mode No fault in memory Cycling Code 1 Flashing Code 2 Test Mode HP Fault in memory Cycling Code 2 Flashing Code 3 Test Mode LP Fault in memory Cycling Code 3 Flashing Code 4 Test Mode FP1 Fault in memory Cycling Code 4 Flashing Code 5 Test Mode F...

Page 21: ...ng Vapors from vent pipe are not harmful but take care to prevent liquid from being carried over by the gases Warm solution acts faster but cold solution is just as effec tive if applied for a longer period GRAVITY FLOW METHOD Do not add solution faster than vent can exhaust the generated gases When condenser is full allow solution to remain overnight then drain condenser and flush with clean wate...

Page 22: ...n left side of bracket 4 Slide motor bracket assembly to extreme right and lift out through space between fan scroll and side frame Rest motor on a high platform such as a step ladder Do not allow motor to hang by its power wires TROUBLESHOOTING Fig 10 and 11 and Table 22 When troubleshooting problems with a WSHP consider the following Thermistor A thermistor may be required for single phase units...

Page 23: ...ALVE FP2 FP1 LIQUID LINE WATER IN WATER OUT CONDENSATE OVERFLOW CO AIR COIL FREEZE PROTECTION WATER COIL PROTECTION THERMISTOR F F AIR COIL LEGEND Fig 11 FP1 and FP2 Thermistor Location COAX Coaxial Heat Exchanger Airflow Refrigerant Liquid Line Flow ...

Page 24: ...k Tables 4 12 X Air temperature out of range Too much cold vent air Bring entering air temperature within design parameters X Improper freeze protect set ting 30 F vs 10 F Normal airside applications will require 30 F only X X Bad thermistor Check temperature and impedance correlation Condensate Fault Code 6 X X Blocked drain Check for blockage and clean drain X X Improper trap Check trap dimensio...

Page 25: ...hermostat X X Unit undersized Recheck loads and sizing check sensible cooling load and heat pump capacity X X Scaling in water heat exchanger Perform Scaling check and clean if necessary X X Inlet water too hot or cold Check load loop sizing loop backfill ground moisture High Head Pressure X Reduced or no airflow in heating Check for dirty air filter and clean or replace Check fan motor operation ...

Page 26: ...continue or change at any time specifications or designs without notice and without incurring obligations PC 111 Catalog No 535 004 Printed in U S A Form 50R 2SI Pg 26 8 02 Replaces New Book 1 4 Tab 5a 5a Copyright 2002 Carrier Corporation ...

Page 27: ...ECTION BEEN MADE AND IS A TRAP INSTALLED Y N IS AN AIR FILTER INSTALLED Y N II START UP IS FAN OPERATING WHEN COMPRESSOR OPERATES Y N IF 3 PHASE SCROLL COMPRESSOR IS PRESENT VERIFY PROPER ROTATION PER INSTRUCTIONS Y N UNIT VOLTAGE COOLING OPERATION PHASE AB VOLTS PHASE BC VOLTS PHASE CA VOLTS if 3 phase if 3 phase PHASE AB AMPS PHASE BC AMPS PHASE CA AMPS if 3 phase if 3 phase CONTROL VOLTAGE IS C...

Page 28: ...REJECTION FLOW RATE GPM x TEMP DIFF DEG F x FLUID FACTOR Btu hr SUPERHEAT SUCTION TEMPERATURE SUCTION SATURATION TEMPERATURE DEG F SUBCOOLING DISCHARGE SATURATION TEMPERATURE LIQUID LINE TEMPERATURE DEG F Use 500 for water 485 for antifreeze SUCTION COMPRESSOR DISCHARGE COAX EXPANSION VALVE F F AIR COIL F PSI WATER OUT WATER IN F PSI LOOK UP PRESSURE DROP IN TABLE 16 TO DETERMINE FLOW RATE F LIQUI...

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