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Quantech QTC4 STYLE A Series Installation Operation & Maintenance

Air-cooled screw liquid chillers with variable speed drive, 150 - 500 tons, 525 - 1750 kw, 2 compressor, 60 hz.
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AIR-COOLED SCREW
LIQUID CHILLERS
Supersedes: QTC4-NM1 (318)
Form QTC4-NM1 (418)
INSTALLATION, OPERATION, MAINTENANCE
035-24497-000
MODEL QTC4 STYLE A
AIR-COOLED SCREW LIQUID CHILLERS WITH
VARIABLE SPEED DRIVE
150 - 500 TONS
525 - 1750 KW
2 COMPRESSOR
60 HZ
LD18970
HFC-134A
Issue Date:
April 2, 2018

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Table of Contents

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   Summary of Contents for Quantech QTC4 STYLE A Series

  • Page 1 AIR-COOLED SCREW LIQUID CHILLERS Supersedes: QTC4-NM1 (318) Form QTC4-NM1 (418) INSTALLATION, OPERATION, MAINTENANCE 035-24497-000 MODEL QTC4 STYLE A AIR-COOLED SCREW LIQUID CHILLERS WITH VARIABLE SPEED DRIVE 150 - 500 TONS 525 - 1750 KW 2 COMPRESSOR 60 HZ LD18970 HFC-134A Issue Date: April 2, 2018...
  • Page 2 Johnson Controls will NOT be responsible for damage/problems resulting from improper connections to the controls or application of improper control signals. Failure to follow this warn- ing will void the manufacturer’s warranty and cause serious damage to property or personal injury. QUANTECH...
  • Page 3 OFF. NEVER place loose tools, debris, or any objects inside the Control Panel/VSD Cabinet. ASSOCIATED LITERATURE MANUAL DESCRIPTION FORM NUMBER Equipment Pre-Startup and Startup Checklist QTC4-CL2 QTC4 Parts Guide QTC4-RP1 Equipment Standard Limited Warranty QTC-NM2 QUANTECH...
  • Page 4 FORM QTC4-NM1 ISSUE DATE: 4/2/2018 UNIT NOMENCLATURE QTC4 SXXX Base Product Type Q = Quantech T = Variable Speed Screw Level / Refrigerant C4 = Air Cooled Design Series A = Refrigerant R134a B = Refrigerant R513A Model Number Voltage...
  • Page 5: Table Of Contents

    High Temperature and Pressure Cleaning .................... 13 Emergency Shutdown ...........................14 Safety Labels ............................14 SECTION 2 - PRODUCT DESCRIPTION .......................15 General System Description ........................... 15 Semi-Hermetic Quantech Twin-Screw Compressors ..................17 Evaporator ..............................17 Condenser ..............................17 Refrigerant Circuit ............................17 Electrical ................................. 17 Building Automation System Capabilities .......................
  • Page 6 Elastomeric Isolator Installation ........................84 Elastomeric Isolator Specifications ......................... 85 One Inch Deflection Isolator Installation ......................86 One Inch Deflection Spring Isolator Specifications ..................87 Two Inch Deflection Isolator Installation And Adjustment ................88 Two Inch Deflection, Restrained Spring Isolator Specifications ..............89 QUANTECH...
  • Page 7 Evaporator Heater Control ........................96 Alarms ..............................97 Chiller Run Contact ..........................97 Flow Switch Control ..........................97 Remote Run / Stop ..........................97 Basic Operating Sequence ..........................97 Start Sequence and Loading ......................... 97 Unit Warning ..............................97 Unit Warning Operation .........................97 Low Battery Warning ..........................97 QUANTECH...
  • Page 8 Operating Hours / Start Counter Key ......................124 History Key ..............................125 Setpoints Key ............................... 132 Program Key ..............................134 Options Key ..............................137 Date/Time and Schedule Keys ........................140 Manual Override Key ............................ 143 Print Key ............................... 144 System Switches Key ........................... 147 QUANTECH...
  • Page 9 Evacuating a System ...........................150 Charging Refrigerant into a System ....................151 Microchannel Coil Cleaning .......................... 151 Scheduled Maintenance ........................151 Maintenance Requirements for QTC4 Chillers .....................152 SECTION 10 - DECOMMISSIONING, DISMANTLING AND DISPOSAL ............161 General ................................. 161 Temperature ..............................162 QUANTECH...
  • Page 10 TABLE 27 - Outside Air Temperature Sensor Input Voltage (Measured Signal To Shield at the Sensor) ..... 157 TABLE 28 - Pressure Transducer Output Voltage (Measured Signal To Return At The Transducer) ....158 TABLE 29 - Motor Temperature Sensor Resistance (Check At The Motor) ............159 TABLE 30 - SI Metric Conversion .........................162 QUANTECH...
  • Page 11: Section 1 - General Chiller Information And Safety

    The warranty is limited to parts only replacement and shipping of any faulty part, or sub-assembly, which has Quantech QTC4 chillers are manufactured to the failed due to poor quality or manufacturing errors. All highest design and construction standards ensuring...
  • Page 12: Fluorinated Greenhouse Gases

    This manual and any other document supplied with Electrical the unit are the property of Quantech which reserves all rights. They may not be reproduced, in whole or The unit must be grounded. No installation or main-...
  • Page 13: Rotating Parts

    It is the responsibility of a designated System Integra- operation of the pressure relief device(s). Detergents tor to take proper steps assuring the Electromagnetic and solvents, which may cause corrosion, should also Compatibility of both equipment and installation as a be avoided. system. QUANTECH...
  • Page 14: Emergency Shutdown

    Black symbol on yellow background. General attention symbol. Black symbol on yellow background. Warning: On isolating the supply it may take up to 300 seconds for the capacitor voltage to fall below 50 volts. QUANTECH...
  • Page 15: Section 2 - Product Description

    FORM QTC4-NM1 ISSUE DATE: 4/2/2018 SECTION 2 - PRODUCT DESCRIPTION Quantech QTC4 chillers are designed for water or GENERAL SYSTEM DESCRIPTION glycol cooling. All units are designed to be located The QTC4 chiller combines the best of modern screw outside on the roof of a building or at ground level.
  • Page 16: Figure 2 - Chiller Control System

    The basic system control and VSD system architecture pressors to run, and select compressor speed. Displace- is shown in Figure 2 on Page 16. ment Power Factor is 0. 95 at part or full load. QUANTECH...
  • Page 17: Semi-hermetic Quantech Twin-screw Compressors

    ELECTRICAL CONDENSER Quantech has years of experience designing Variable The QTC4 introduces micro-channel coil to the Speed Drives (VSDs) specifically for chiller applica- Quantech screw compressor chiller line. The micro- tions.
  • Page 18: Building Automation System Capabilities

    It efficiently man- ages the communication protocols currently used by • Evaporator Heater Status Quantech equipment, exposing the data in a consistent, • History Data for Last Twenty Normal Shutdowns organized, and defined fashion. The E-Link Gateway is •...
  • Page 19: Accessories And Options

    Please contact output without shutting down. your local Quantech Sales Representative for more infor- mation. Unit Safeties are provided for the chiller to perform auto-reset shut down for the following conditions: CONDENSER COILS •...
  • Page 20: Evaporator Options

    Building Automation System Interface (Tempera- ture) – Factory installed option to accept a 4 to 20mA or a 0 to 10VDC input to allow remote reset of the Leaving Chilled Liquid Temperature Setpoint. The QUANTECH...
  • Page 21: Vibration Isolation

    The deflection may vary slightly by application. They supplied to isolate the unit power voltage for servicing. are level adjustable. Field mounted. Separate external fusing must be supplied by the power wiring, which must comply with local codes. QUANTECH...
  • Page 22 FORM QTC4-NM1 ISSUE DATE: 03/07/2018 THIS PAGE INTENTIONALLY LEFT BLANK QUANTECH...
  • Page 23: Section 3 - Rigging, Handling And Storage

    • Ensure that all openings, such as water connec- given on the advice note. tions, are securely capped. • Do not store where exposed to high ambient air Major damage must be reported immediately to your temperatures that may exceed relief valve settings. local Quantech Representative. QUANTECH...
  • Page 24: Moving The Chiller

    IN BASE FRAME FLANGE FLANGE LOCKING PIN LIFTING HOLE LOCKING PIN IN BASE FRAME LOCKING FLANGE LD19197a LD19197b FIGURE 4 - LIFT LUG TO REMOVE UNIT FROM FIGURE 5 - ACCESSORY LIFTING LUGS SHIPPING CONTAINER QUANTECH...
  • Page 25 FORM QTC4-NM1 SECTION 3 - RIGGING, HANDLING AND STORAGE ISSUE DATE: 03/07/2018 THIS PAGE INTENTIONALLY LEFT BLANK QUANTECH...
  • Page 26: Table 1 - Unit Rigging

    NOTE: Rigging and lifting the unit must be done by a professional rigger safely, as discussed in this section. The rigger should locate the center of gravity through trial lifts to account for possible variations in unit configuration. Contact your nearest Quantech Sales Office for weight data.
  • Page 27 NOTE: Rigging and lifting the unit must be done by a professional rigger safely, as discussed in this section. The rigger should locate the center of gravity through trial lifts to account for possible variations in unit configuration. Contact your nearest Quantech Sales Office for weight data.
  • Page 28 NOTE: Rigging and lifting the unit must be done by a professional rigger safely, as discussed in this section. The rigger should locate the center of gravity through trial lifts to account for possible variations in unit configuration. Contact your nearest Quantech Sales Office for weight data.
  • Page 29 NOTE: Rigging and lifting the unit must be done by a professional rigger safely, as discussed in this section. The rigger should locate the center of gravity through trial lifts to account for possible variations in unit configuration. Contact your nearest Quantech Sales Office for weight data.
  • Page 30 NOTE: Rigging and lifting the unit must be done by a professional rigger safely, as discussed in this section. The rigger should locate the center of gravity through trial lifts to account for possible variations in unit configuration. Contact your nearest Quantech Sales Office for weight data.
  • Page 31 NOTE: Rigging and lifting the unit must be done by a professional rigger safely, as discussed in this section. The rigger should locate the center of gravity through trial lifts to account for possible variations in unit configuration. Contact your nearest Quantech Sales Office for weight data.
  • Page 32 NOTE: Rigging and lifting the unit must be done by a professional rigger safely, as discussed in this section. The rigger should locate the center of gravity through trial lifts to account for possible variations in unit configuration. Contact your nearest Quantech Sales Office for weight data.
  • Page 33 NOTE: Rigging and lifting the unit must be done by a professional rigger safely, as discussed in this section. The rigger should locate the center of gravity through trial lifts to account for possible variations in unit configuration. Contact your nearest Quantech Sales Office for weight data.
  • Page 34 FORM QTC4-NM1 ISSUE DATE: 03/07/2018 THIS PAGE INTENTIONALLY LEFT BLANK QUANTECH...
  • Page 35: Section 4 - Installation

    Mounting holes (5/8”) are provided in the base rails for construction, the same requirement of static pressure loss bolting the unit to its foundation. Refer to Table 10 on applies as for ducts and attenuators stated above. Page 78 for location of the mounting holes. QUANTECH...
  • Page 36: Recommended Minimum Clearances

    914 144 3658 914 192 4877 914 144 3658 1.2 m (4') Control Panel 914 192 4877 Minimum 914 144 3658 914 192 4877 FIGURE 6 - ACCEPTABLE MINIMUM CLEARANCES 914 192 4877 AROUND / BETWEEN UNIT(S) 914 192 4877 QUANTECH...
  • Page 37: Vibration Isolators

    1" N.P.T. connection can be obtained unit carefully onto the mounts ensuring the mount from Quantech as an accessory for the unit. Alterna- engages in the mounting holes in the unit base frame. tively, a differential pressure switch fitted across an...
  • Page 38: Water Treatment

    SECTION 4 - INSTALLATION ISSUE DATE: 4/2/2018 Liquid system lines at risk of freezing, due to low am- Quantech recommends that a water treatment specialist bient temperatures should be protected using insula- should be consulted to determine whether the proposed tion and heater tape and/or a suitable glycol solution.
  • Page 39: Flow Rate Out Of Range

    FIGURE 9 - S U G G E S T E D L A Y O U T F O R APPLICATIONS WITH A FLOW RATE GREATER APPLICATIONS WITH FLOW RATES LESS THAN THE THAN THE EVAPORATOR MAXIMUM ALLOWABLE EVAPORATOR MINIMUM ALLOWABLE FLOW RATE FLOW RATE QUANTECH...
  • Page 40: Variable Primary Flow

    FORM QTC4-NM1 SECTION 4 - INSTALLATION ISSUE DATE: 4/2/2018 VARIABLE PRIMARY FLOW TABLE 3 - EVAPORATOR CONNECTIONS DIMEN- SIONS Quantech recommends a maximum 10% per minute VICTAULIC flow rate of change, based on design flow, for variable NOMINAL FRAME COND. EVAP.
  • Page 41: Option Flanges

    Where: All sources of supply to the unit must be • D = minimum pipe internal diameter in cm taken via a common point of isolation (not supplied by Quantech). • L = length of pipe in meters QUANTECH...
  • Page 42: Power Supply Wiring

    The flow switch circuitry is a 115VAC circuit. heater mat, and waterbox heaters. Contacts must be rated for low current (5mA). Gold contacts should be used. QUANTECH...
  • Page 43: Remote Run / Stop

    Operating Data/Fault History to be made if an optional printer is connected to the RS-232 port. The remote print circuitry is a 115VAC circuit. Contacts must be rated for low current (5mA). Gold contacts should be used. QUANTECH...
  • Page 44: Power Supply Wiring

    Consult YorkWorks or 230/60/3 208-254 the chiller data plate for electrical data 380/60/3 342-402 on a specific chiller. 400/60/3 360-440 460/60/3 414-508 575/60/3 520-635 400/50/3 360-440 FIGURE 13 - SINGLE POINT POWER WIRING QUANTECH...
  • Page 45: Dual Point Wiring

    FORM QTC4-NM1 SECTION 4 - INSTALLATION ISSUE DATE: 4/2/2018 Dual Point Wiring LD18589 FIGURE 14 - DUAL POINT POWER WIRING QUANTECH...
  • Page 46: Customer Control Wiring

    ALARM + SIGNAL INPUT CONTACTS - SIGNAL INPUT (GND) CHILLER LEGEND TERMINAL BLOCK FOR CUSTOMER CONNECTIONS TERMINAL BLOCK FOR QUANTECH CONNECTIONS WIRING AND COMPONENTS BY QUANTECH OPTIONAL EQUIPMENT WIRING AND/OR COMPONENTS BY OTHERS FIGURE 15 - CUSTOMER CONTROL CONNECTIONS QUANTECH...
  • Page 47: Table 4 - Electrical Lug Data

    #2 ~ 600 kcmil #2 - 600 kcmil #1 ~ 500 kcmil #2 ~ 600 kcmil #2 - 600 kcmil #1 ~ 500 kcmil #2 - 600 kcmil #2 - 600 kcmil #1 ~ 500 kcmil #2 ~ 600 kcmil QUANTECH...
  • Page 48 #2 ~ 600 kcmil #2 - 600 kcmil 3/0 ~ 400 kcmil #2 ~ 600 kcmil #2 - 600 kcmil #1 ~ 500 kcmil #2 ~ 600 kcmil #2 - 600 kcmil #1 ~ 500 kcmil #2 ~ 600 kcmil QUANTECH...
  • Page 49 #2 ~ 600 kcmil #2 - 600 kcmil 3/0 ~ 400 kcmil #2 ~ 600 kcmil #2 - 600 kcmil #1 ~ 500 kcmil #2 ~ 600 kcmil #2 - 600 kcmil #1 ~ 500 kcmil #2 ~ 600 kcmil QUANTECH...
  • Page 50 #2 ~ 600 kcmil #2 - 600 kcmil 3/0 ~ 400 kcmil #2 ~ 600 kcmil #2 - 600 kcmil 3/0 ~ 400 kcmil #2 ~ 600 kcmil #2 - 600 kcmil #1 - 500 kcmil #2 ~ 600 kcmil QUANTECH...
  • Page 51 #2 - 600 kcmil #2 - 600 kcmil #4/0 ~ 500 kcmil #2 ~ 600 kcmil #2 - 600 kcmil #3/0 ~ 400 kcmil #2 ~ 600 kcmil #2 - 600 kcmil #3/0 ~ 400 kcmil #2 ~ 600 kcmil QUANTECH...
  • Page 52 #2 - 600 kcmil #2 - 600 kcmil #4/0 ~ 500 kcmil #2 - 600 kcmil #2 - 600 kcmil #4/0 ~ 500 kcmil #2 - 600 kcmil #2 - 600 kcmil #3/0 ~ 400 kcmil #2 - 600 kcmil QUANTECH...
  • Page 53 #3/0 ~ 400 kcmil #2 - 600 kcmil #3/0 ~ 400 kcmil #3/0 ~ 400 kcmil #2 - 600 kcmil #1 ~ 500 kcmil #1 ~ 500 kcmil #2 - 600 kcmil #1 ~ 500 kcmil #1 ~ 500 kcmil QUANTECH...
  • Page 54 #3/0 ~ 400 kcmil #2 - 600 kcmil #3/0 ~ 400 kcmil #3/0 ~ 400 kcmil #2 - 600 kcmil #3/0 ~ 400 kcmil #3/0 ~ 400 kcmil #2 - 600 kcmil #1 ~ 500 kcmil #1 ~ 500 kcmil QUANTECH...
  • Page 55 #3/0 ~ 400 kcmil #2 - 600 kcmil #3/0 ~ 400 kcmil #3/0 ~ 400 kcmil #2 - 600 kcmil #1 ~ 500 kcmil #1 ~ 500 kcmil #2 - 600 kcmil #1 ~ 500 kcmil #1 ~ 500 kcmil QUANTECH...
  • Page 56 FORM QTC4-NM1 ISSUE DATE: 03/07/2018 THIS PAGE INTENTIONALLY LEFT BLANK QUANTECH...
  • Page 57: Section 5 - Technical Data

    ISSUE DATE: 4/2/2018 SECTION 5 - TECHNICAL DATA The data shown in all the tables of this section, is ap- Please contact your nearest Quantech Sales Represen- plicable to selected typical configurations. Other con- tative for the chiller configuration that best matches figurations are available through our configuration/ your specific needs.
  • Page 58: Table 5 - Physical Data - Microchannel Coil

    Connections, in NOTES: 1. Shipping and operating weights shown are for base unit; selected options may add weight to unit. Contact your nearest Quantech Sales Represenative for weight data. 2. For leaving liquid temperature below 40°F(4.4°C) or above 60°F (15.6°C). Contact your nearest Quantech Sales Representative for application requirements.
  • Page 59 Connections, in NOTES: 1. Shipping and operating weights shown are for base unit; selected options may add weight to unit. Contact your nearest Quantech Sales Representative for weight data. 2. For leaving liquid temperature below 40°F(4.4°C) or above 60°F (15.6°C), Contact your nearest Quantech Sales Representative for application requirements.
  • Page 60 Connections, in NOTES: 1. Shipping and operating weights shown are for base unit; selected options may add weight to unit. Contact your nearest Quantech Sales Representative for weight data. 2. For leaving liquid temperature below 40°F(4.4°C) or above 60°F (15.6°C). Contact your nearest Quantech Sales Representative for application requirements.
  • Page 61 Connections, in NOTES: 1. Shipping and operating weights shown are for base unit; selected options may add weight to unit. Contact your nearest Quantech Sales Representative for weight data. 2. For leaving liquid temperature below 40°F(4.4°C) or above 60°F (15.6°C). Contact your nearest Quantech Sales Representative for application requirements.
  • Page 62: Table 6 - Physical Data - Round Tube Coil

    Connections, in NOTES: 1. Shipping and operating weights shown are for base unit; selected options may add weight to unit. Contact your nearest Quantech Sales Representative for weight data. 2. For leaving liquid temperature below 40°F(4.4°C) or above 60°F (15.6°C). Contact your nearest Quantech Sales Representative for applica- tion requirements.
  • Page 63 Connections, in NOTES: 1. Shipping and operating weights shown are for base unit; selected options may add weight to unit. Contact your nearest Quantech Sales Representative for weight data. 2. For leaving liquid temperature below 40°F(4.4°C) or above 60°F (15.6°C). Contact your nearest Quantech Sales Representative for applica- tion requirements.
  • Page 64: Table 7 - Optional One-pass Evaporator

    NOTE: Minimum Chilled Water Flow Rate is for full load selections; Variable Primary Flow ratings as low as 50% of the minimum are permitted. Glycol limits are higher. Please contact your Quantech Sales Representative for ratings and further information. QUANTECH...
  • Page 65 NOTE: Minimum Chilled Water Flow Rate is for full load selections; Variable Primary Flow ratings as low as 50% of the minimum are permitted. Glycol limits are higher. Please contact your Quantech Sales Representative for ratings and further information. QUANTECH...
  • Page 66 NOTE: Minimum Chilled Water Flow Rate is for full load selections; Variable Primary Flow ratings as low as 50% of the minimum are permitted. Glycol limits are higher. Please contact your Quantech Sales Representative for ratings and further information. QUANTECH...
  • Page 67 NOTE: Minimum Chilled Water Flow Rate is for full load selections; Variable Primary Flow ratings as low as 50% of the minimum are permitted. Glycol limits are higher. Please contact your Quantech Sales Representative for ratings and further information. QUANTECH...
  • Page 68: Table 8 - Standard Two-pass, Rear Inlet/outlet Evaporator

    NOTE: Minimum Chilled Water Flow Rate is for full load selections; Variable Primary Flow ratings as low as 50% of the minimum are permitted. Glycol limits are higher. Please contact your Quantech Sales Representative for ratings and further information. QUANTECH...
  • Page 69 NOTE: Minimum Chilled Water Flow Rate is for full load selections; Variable Primary Flow ratings as low as 50% of the minimum are permitted. Glycol limits are higher. Please contact your Quantech Sales Representative for ratings and further information. QUANTECH...
  • Page 70 NOTE: Minimum Chilled Water Flow Rate is for full load selections; Variable Primary Flow ratings as low as 50% of the minimum are permitted. Glycol limits are higher. Please contact your Quantech Sales Representative for ratings and further information. QUANTECH...
  • Page 71 NOTE: Minimum Chilled Water Flow Rate is for full load selections; Variable Primary Flow ratings as low as 50% of the minimum are permitted. Glycol limits are higher. Please contact your Quantech Sales Representative for ratings and further information. QUANTECH...
  • Page 72: Table 9 - Optional Three-pass Rear Inlet/front Outlet Evaporator

    NOTE: Minimum Chilled Water Flow Rate is for full load selections; Variable Primary Flow ratings as low as 50% of the minimum are permitted. Glycol limits are higher. Please contact your Quantech Sales Representative for ratings and further information. QUANTECH...
  • Page 73 NOTE: Minimum Chilled Water Flow Rate is for full load selections; Variable Primary Flow ratings as low as 50% of the minimum are permitted. Glycol limits are higher. Please contact your Quantech Sales Representative for ratings and further information. QUANTECH...
  • Page 74 NOTE: Minimum Chilled Water Flow Rate is for full load selections; Variable Primary Flow ratings as low as 50% of the minimum are permitted. Glycol limits are higher. Please contact your Quantech Sales Representative for ratings and further information. QUANTECH...
  • Page 75 NOTE: Minimum Chilled Water Flow Rate is for full load selections; Variable Primary Flow ratings as low as 50% of the minimum are permitted. Glycol limits are higher. Please contact your Quantech Sales Representative for ratings and further information. QUANTECH...
  • Page 76: Figure 16 - Qtc4 Dimensions

    SECTION 5 - TECHNICAL DATA ISSUE DATE: 4/2/2018 The data below is applicable to select configurations. Please contact your nearest Quantech Sales Represen- Other configurations are available through our con- tative for the chiller configuration that best matches figuration/selection software.
  • Page 77 FORM QTC4-NM1 SECTION 5 - TECHNICAL DATA ISSUE DATE: 03/07/2018 THIS PAGE INTENTIONALLY LEFT BLANK QUANTECH...
  • Page 78: Table 10 - Isolator Selection And Mounting Locations

    Isolator Y-Dimension 1 (34) Isolator X-Dimension (263) (1943) (2999) (3984) (5298) (7135) Isolator Y-Dimension 1 (34) NOTES: 1. Contact your nearest Quantech Sales Representative for weight data. 2. All isolator mounting holes are 19mm. 3. Dimensions are in inches (mm). QUANTECH...
  • Page 79 Isolator Y-Dimension 87 (2206) Isolator X-Dimension (263) (1943) (2999) (3984) (7135) (5298) Isolator Y-Dimension 87 (2206) NOTES: 1. Contact your nearest Quantech Sales Representative for weight data. 2. All isolator mounting holes are 19mm. 3. Dimensions are in inches (mm).. QUANTECH...
  • Page 80 Isolator Y-Dimension 1 (34) Isolator X-Dimension (263) (2057) (4084) (5105) (7582) (9726) Isolator Y-Dimension 1 (34) NOTES: 1. Contact your nearest Quantech Sales Representative for weight data. 2. All isolator mounting holes are 19mm. 3. Dimensions are in inches (mm). QUANTECH...
  • Page 81 Isolator Y-Dimension 87 (2206) Isolator X-Dimension (263) (2057) (3636) (4781) (6232) (9726) Isolator Y-Dimension 87 (2206) NOTES: 1. Contact your nearest Quantech Sales Representative for weight data. 2. All isolator mounting holes are 19mm. 3. Dimensions are in inches (mm).. QUANTECH...
  • Page 82 1 (34) Isolator X-Dimension (263) (2057) (3907) (5219) (7218) (10842) (12820) (14265) Isolator Y-Dimension 1 (34) NOTES: 1. Contact your nearest Quantech Sales Representative for weight data. 2. All isolator mounting holes are 19mm. 3. Dimensions are in inches (mm). QUANTECH...
  • Page 83 87 (2206) Isolator X-Dimension (263) (2057) (3907) (5219) (7218) (10842) (12820) (14265) Isolator Y-Dimension 87 (2206) NOTES: 1. Contact your nearest Quantech Sales Representative for weight data. 2. All isolator mounting holes are 19mm. 3. Dimensions are in inches (mm). QUANTECH...
  • Page 84: Elastomeric Isolator Installation

    The VMC group rec- ommends that the isolator base (A) be installed on a level surface. Shim or grout as required, leveling all isolator bases to the same elevation (0.03125-inch maximum difference is tolerated). QUANTECH...
  • Page 85: Elastomeric Isolator Specifications

    1/2-13 UNC X 1 3.00 MODEL NUMBER ISOLATOR COLOR WEIGHT RANGE (LBS) WEIGHT RANGE (KGS) RD-3-CHARCOAL-WR CHARCOAL Up thru 825 UP TO 374 RD-4-BRICK RED-WR BRICK RED 826 thru 1688 375 - 766 RD-4-CHARCOAL-WR CHARCOAL 1689 thru 4000 767 - 1814 QUANTECH...
  • Page 86: One Inch Deflection Isolator Installation

    0.25” clearance is achieved between the low- elevation (0.25-inch maximum difference can be er housing and upper housing. (See illustration tolerated). above). 3. Bolt or anchor all isolators to supporting structure 8. Fine adjust isolators to level equipment. utilizing base slotted holes (“C”). QUANTECH...
  • Page 87: One Inch Deflection Spring Isolator Specifications

    1. Use either all CP's or all CP2's at all locations on a unit. 2. Installation requires bolting or anchoring mount to support structure with a 2 x 0.625" diameter bolts or 2 x 0.5" diameter concrete anchors. 3. All springs are designed for 50% over-travel. QUANTECH...
  • Page 88: Two Inch Deflection Isolator Installation And Adjustment

    5. With all shims (“E”) in place, position equipment maintaining 0.25-to 0.375-inch gap. The limit on top of plate (“A”) of isolator. stop nuts must be kept at this gap to ensure uni- form bolt loading during uplift (as the case when equipment is drained). QUANTECH...
  • Page 89: Two Inch Deflection, Restrained Spring Isolator Specifications

    2. Equipment must be bolted or welded to the top plate to meet allowable seismic ratings. 3. All springs are designed for 50% overload capacity with exception of the 029-25336-013 and 029-25336-014. 4. Contact your nearest Quantech Sales Representative for concrete installation. QUANTECH...
  • Page 90 FORM QTC4-NM1 ISSUE DATE: 03/07/2018 THIS PAGE INTENTIONALLY LEFT BLANK QUANTECH...
  • Page 91: Section 6 - Commissioning

    Correct System Refrigerant Charge Commissioning of this unit should only The charge on a system should always be checked be carried out by Quantech Authorized when operating for several minutes at full speed with personnel. the system stable. Stable conditions are defined as...
  • Page 92: Fans

    Then press the DATE/TIME key and set the rator. Purge air from the top of the evaporator using the date and time (See Date/Time and Schedule Keys on QUANTECH...
  • Page 93: Start/stop Schedule

    Assure all checks are completed in the Equipment temperature, etc. Should any problems occur; the con- Pre - Startup and Startup Checklist. The chiller is then trol system will immediately take appropriate action ready to be placed into operation. QUANTECH...
  • Page 94: Operation In Sub-freezing Conditions

    -or- If there is potential for power loss, Quantech recom- mends the water in the chilled water circuit be replaced D. Pump Control: Keep power to the chiller in or- with an appropriate water-to-glycol concentration.
  • Page 95: Section 7 - Operation

    ▲,▼,◄, and ► (UNIT DATA, SYSTEM DATA, etc.) keys. (ARROW) keys. The keypad utilizes an overlay to convert the keypad to various languages. QUANTECH...
  • Page 96: Keypad Data Entry Mode

    ON. If no systems are running and XXXXXXXXXXX PRESS  TO ACCEPT VALUE OR the temperature rises above 7.2°C (45°F) the heater is X TO CANCEL DATA ENTRY turned OFF. Whenever a system is running, the evapo- rator heater is turned OFF. QUANTECH...
  • Page 97: Alarms

    If the battery volt- age is determined to be low, the following warning A Remote Run/Stop input is available for each system. message is displayed indefinitely. UNIT WARNING: !! LOW BATTERY !! CHECK SETPOINTS/PROGRAM/OPTIONS/TIME QUANTECH...
  • Page 98: Microboard (331-03478-xxx)

    (left) = 4-20 mA, Pins 2 to 3 (right) = 0-10 VDC. base board processor is running its program. JP6 Remote Sound Limit jumper position (Pins 1 to 2 (left) = 4-20 mA, Pins 2 to 3 (right) = 0-10 VDC. QUANTECH...
  • Page 99: Figure 18 - New 331-03478-xxx Microboard

    Port 2 U18 VSD Remote Setpoint TP5 + 15V RS485 to E-Link/ RS-485 Driver Jumpers SC-EQ or Modbus U23 Port 2 U26 PORT 1 U5 RTC/BRAM TP10 + 24V RS-485 Driver RS-485 Driver FIGURE 18 - NEW 331-03478-XXX MICROBOARD QUANTECH...
  • Page 100: Communication Ports

    You must always cycle power to the 1. Connect the BACnet MS/TP Network to Port 1 on microboard following port setting the IPU II I/O Board. changes. 2. Set up the QTC4 Port 1 (P1) for BACnet Communications as shown in Figure 18 on Page QUANTECH...
  • Page 101: E-link Or Sc-eq Interface

    2. Chiller ID: 0 4. P2 Protocol: Set to Modbus Server 3. Cycle power to the Microboard following port 5. P2 Manual MAC Address: Set to 0-127 setups. (as required by Modbus network) 6. P2 Baud rate: Set to 19.2K QUANTECH...
  • Page 102: Table 11 - Values Required For Bas Communication

    When connected via BAS and port is set for BACnet, RTC/BRAM INVALID Modbus, or N2, the remote settings will continue to BACNET SETUP FAILED follow the remote setpoints until the port is changed to another protocol or DEmodifier address is set to -1. QUANTECH...
  • Page 103: Sc-eq Or E-link Bas Communications Card

    REMOTE mode. When the obtained by contacting your nearest unit is in LOCAL mode, these eight values are ignored. Quantech Sales Office. If the unit receives no valid YorkTalk 2 transmission for 5 minutes it will revert back to all local control values.
  • Page 104: Table 13 - Native Communications Data Map

    FORM QTC4-NM1 SECTION 7 - OPERATION ISSUE DATE: 4/2/2018 TABLE 13 - NATIVE COMMUNICATIONS DATA MAP QUANTECH...
  • Page 105: Table 13 - Native Communications Data Map (cont'd)

    FORM QTC4-NM1 SECTION 7 - OPERATION ISSUE DATE: 4/2/2018 TABLE 13 - NATIVE COMMUNICATIONS DATA MAP (CONT'D) QUANTECH...
  • Page 106: Table 14 - Operational And Fault / Inhibit Codes

    Low DC Bus Voltage DC Bus Voltage Imbalance High Motor Current Motor Current Overload (Software) IGBT Gate Driver Fault High Baseplate Temperature Single Phase Input VSD Run Signal Fault High Discharge Press (Hardware – HPCO) Control Voltage Fault Low Discharge Superheat QUANTECH...
  • Page 107: E-link

    WAIT... is displayed until the update has been The folder named RM201503 is a folder created in completed. The keypad and display will not March of 2015. Within this folder would be a file for respond during the flash update. QUANTECH...
  • Page 108: Invalid Number Of Compressors Warning

    ENTER key. chiller has lost important factory programmed infor- mation. The serial number can be entered using the Again, follow the Quantech Safety Directives to stop SERVICE key. the chiller, power off the unit and open the control cab- inet door to retrieve the SD card.Once inside the con-...
  • Page 109: Unit Safeties

    Chiller Control Board loses out. The fault display message will be present only dur- communications with the VSD Logic Board while the ing the time when the ambient temperature is causing chiller is operating. a fault condition. QUANTECH...
  • Page 110: System Safeties (faults)

    120 second anti-recycle timer the fault message will show a YYYYYYYY to indi- times out, or “LOCKOUT” and will not restart until cate that a system is in a “FAULT” condition and will the operator clears the fault using the keypad. QUANTECH...
  • Page 111: High Discharge Pressure Cutout (hpco) (hardware) Fault

    3 minutes of operation the suction pres- “LOCKOUT” and will not restart until the operator sure falls below the ramped cutout point, the system clears the fault using the keypad. will shut down with a controlled ramped shutdown. QUANTECH...
  • Page 112: Low Differential Oil Pressure Cutout Fault

    Cutout minus 15 PSIG loading is inhibited even high. The bypass assures the compressor(s) will not though increased loading may be required. Between trip on a nuisance low oil differential fault. Cutout minus 15 PSIG and the Discharge Pressure Cut- High Discharge Temperature Cutout Fault QUANTECH...
  • Page 113: Suction Pressure Load Limiting/unloading

    ZZZZZZZZZZZ indicates the failed sensor below: sure limit unloading will not occur until the system run time reaches 5 minutes of operation to allow the system • SUCT PRESS to stabilize. • OIL PRESS • DSCH PRESS • MOTOR TEMP X * QUANTECH...
  • Page 114: High Motor Temperature Cutout Fault

    115VAC than the saturated suction pressure plus 5.5°C (10°F). supply is lost. This prevents nuisance eductor clog faults. The safety will “not” shut down a system if the UNIT QUANTECH...
  • Page 115: Section 8 - Micropanel

    MANUAL OVERRIDE mode. This message is a pri- general status message: ority message and cannot be overridden by any other STATUS message. When in Manual Override, no other (C)2004 JOHNSON CONTROLS INTERNATIONAL status message will ever be present. C.XXX.XX.XX 18-SEPT-2010 12:45: AM QUANTECH...
  • Page 116 The motor current limiting message indicates the mo- loading sequence to bring the lag system ON. tor current load limit or motor current unloading is in effect. QUANTECH...
  • Page 117 The setpoint may be offset the VSD Baseplate temp is high and load limit or un- using a remote voltage or current signal. The sound loading is in effect. limit option must be activated for this function to operate. QUANTECH...
  • Page 118: Unit Data Key

    The next key press displays the error in temperature tive will be displayed, while the inactive items will be between the actual leaving chilled liquid temperature blanked out. and the setpoint temperature. The display also shows the rate of change of the chilled liquid temperature. QUANTECH...
  • Page 119 The chiller is in remote mode. • ISN - YorkTalk via ISN. The chiller in remote mode. • CURR - Remote Current Limiting is enabled. • TEMP - Remote Temperature Reset is enabled. • SOUND - Remote Sound Limiting is enabled. QUANTECH...
  • Page 120: System Data Keys 1 Through 4

    ▼ (DOWN ARROW) key displays system suction istor temperatures. and condenser liquid pressure. SYS 1 MOTOR TEMPS T1 = XXX.X °F SYS 1 PRESSURES SUCTION = XXXX PSIG T2 = XXX.X °F T3 = XXX.X °F CONDENSER LIQUID = XXXX PSIG QUANTECH...
  • Page 121 If the fans are controlled by an optional VSD, the dis- play will indicate fan speed signal control voltage to the VSD and the fan speed (0 to 100%). SYS 1 CONDENSER FANS ON = X VSD FAN SPEED = XX.X V = XXX % QUANTECH...
  • Page 122: Table 21 - Sensor Min/max Outputs

    0 to 20ma or 2 to 10VDC 4 to 20ma, 0 to 10VDC, Remote Current Limit 100% 0 to 20ma or 2 to 10VDC 4 to 20ma, 0 to 10VDC, Remote Sound Limit 100% 0 to 20ma or 2 to 10VDC QUANTECH...
  • Page 123: Vsd Data Key

    “XXX” instead of a numeric value. ing unless the circuit board is replaced. VSD CURRENT LIMIT LOCAL = XXX %FLA COMP 1 MOTOR OVERLOAD = XXX AMPS ISN = XXX REMOTE = XXX %FLA COMP 2 MOTOR OVERLOAD = XXX AMPS QUANTECH...
  • Page 124: Operating Hours / Start Counter Key

    The maximum value for both hours and starts is 99,999, at which point they will roll over to 0. A single display is available under this key and is displayed below. HOURS 1=XXXXX, 2=XXXXX START 1=XXXXX, 2=XXXXX QUANTECH...
  • Page 125: History Key

     (ENTER) key must be pressed to enter The following display will typically be displayed on a the selection. normal shutdown due to shutdown on lack of cooling demand. NORM HIST XX 18-JUN-20004 10:34:58 AM SYS X COOLING DEMAND SHUTDOWN QUANTECH...
  • Page 126 Status Display (System Faults only), Fault Display, All Fault Display, Unit Data, VSD Data, System Data, Operating Hours/Starts, Setpoints, Options, and Program Values at the time of the fault. QUANTECH...
  • Page 127 DC BUS VOLTAGE = XXX VDC This message indicates the status of the evaporator This message displays the DC Bus voltage at the time pump and the evaporator heater at the time of the fault. of the fault. XXX indicates ON or OFF. QUANTECH...
  • Page 128 CONDENSER LIQUID = XXXX PSIG This message displays the condenser subcooling and This message displays the measured system suction the Condenser Drain Valve position at the time of the and condenser liquid line pressure at the time of the fault. fault. QUANTECH...
  • Page 129 When Remote Control Mode is selected, control of the Chilled Liquid Setpoint is from a remote device such Chilled Liquid Setpoint Cooling Setpoints as an ISN/BAS controller. SETPOINTS LOCAL COOLING SETPOINT = XXX.X °F This message displays the programmed cooling setpoint at the time of the fault. QUANTECH...
  • Page 130 If the option is not factory enabled, the option will not appear. QUANTECH...
  • Page 131 If the option is not factory activated, Motor Temperature Unload the display will not appear. PROGRAM ◄DEF XXXXX LO XXXXX HI XXXXX MOTOR TEMPERATURE UNLOAD = XXX °F This message indicates the motor temperature pro- grammed at the time of the fault. QUANTECH...
  • Page 132: Setpoints Key

    The ▲ (ARROW) key allows scrolling back through ing range. This display automatically updates about the setpoints displays. every 2 seconds. This remote setpoint message is show below: QUANTECH...
  • Page 133: Table 22 - Setpoint Limits

    44.0°F Water Cooling 4.4°C 15.6°C 6.7°C Leaving Chilled Liquid Setpoint 15.0°F 70.0°F 44.0°F Glycol Cooling -9.4°C 15.6°C 6.7°C 1.5°F 2.5°F 2.0°F Leaving Chilled Liquid Control Range 0.8°C 1.4°C 1.1°C 2°F 40°F 20°F Max. Remote Temperature Reset 1°C 22°C 11°C QUANTECH...
  • Page 134: Program Key

    Pressing the  (ENTER) key again will display the first programmable selection. The cutout is programmable between -18.9°C (-2.0°F) and 10.0°C (50°F) with a -3.9°C (25°F) default. QUANTECH...
  • Page 135 This allows the microprocessor to limit a system on pulldown limiting for a defined period of time for the purpose of peak time energy savings. The pulldown limit point is programmable from 0 to 255 with a de- fault of 0 Min. QUANTECH...
  • Page 136: Table 23 - Programmable Operating Parameters

    2.8°C Unit ID Number Sound Limit Sound Limit Setpoint 100% Option Enabled 5.0°F 50.0°F 15.0°F Eductor Temp Differential 2.77°C 27.8°C 8.3°C Eductor Safety Time 10 Min 1000 Min 30 Min* 150.0°F 250.0°F 240.0°F Motor Temperature Unload 65.6°C 121.1°C 115.5°C QUANTECH...
  • Page 137: Options Key

    The display language can be selected for English, Ital- OPTIONS CHILLED LIQUID COOLING MODE ian, Polish, Hungarian, German, French, Portuguese, ◄ ► GLYCOL COOLING and Spanish. The default Chilled Liquid Mode will be WATER OPTIONS DISPLAY LANGUAGE COOLING. ◄ ► XXXXXXXXXXXXXXXXXX The default language will be English. QUANTECH...
  • Page 138 0 to 10VDC, 2 to 10VDC, 0 to 20ma, and 4 to 20ma. OFF. If a compressor is not able to run when the mi- croprocessor attempts a start, the microprocessor will QUANTECH...
  • Page 139 Selections may be made for DISABLED (no signal), ◄ ► ENABLED 0 to 10VDC, 2 to 10VDC, 0 to 20ma, and 4 to 20ma. OPTIONS LOW AMBIENT TEMPERATURE CUTOUT ◄ ► DISABLED The default setting for the low ambient cutout will be ENABLED. QUANTECH...
  • Page 140: Date/time And Schedule Keys

     (ENTER) key must be pressed to store selected, the  (ENTER) key must be pressed to store the data. the data. CLOCK FRI 18-JUN-2011 10:15:33 AM Pressing the ▼ (DOWN ARROW) key again scrolls DAY OF MONTH = XX to the year: QUANTECH...
  • Page 141 AM/PM selection. The meridian (AM/PM) value may be changed by the ◄ (LEFT ARROW) or ► (RIGHT CLOCK FRI 18-JUN-2011 10:15:33 AM ARROW) keys and entered by pressing  (ENTER) TIME FORMAT ◄ ► = XXXXXXX key. QUANTECH...
  • Page 142 SCHEDULE key or the ▼ (DOWN ARROW) key “*”. The  (ENTER) key is used to accept the holiday until the desired day is displayed. The ▲ (UP ARROW) schedule for the entire week. key will scroll backwards to the previous screen. QUANTECH...
  • Page 143: Manual Override Key

    Schedule is being ignored and the chiller will start be used in emergencies or for servicing. Manual over- when chilled liquid temperature allows, Remote Con- ride mode automatically disables itself after 30 minutes. tacts, UNIT switch and SYSTEM switches permitting. MANUAL OVERRIDE QUANTECH...
  • Page 144: Print Key

    ◄ (LEFT ARROW) or ► History Buffer 8 (RIGHT ARROW) keys until the desired printout is History Buffer 9 displayed. History Buffer 10 Cancel Printing The specific printout is initiated by pressing the  (ENTER) key. QUANTECH...
  • Page 145 SUBCOOLING SETPOINT 12.0 DEGF SAT DISCHARGE TEMP 74.5 DEGF UNIT ID NUMBER DISCHARGE SUPERHEAT 6.3 DEGF SOUND LIMIT SETPOINT 100% MOTOR TMP XXX.XXXX.XXXX.XDEGF (If Sound Limiting enabled) COMPRESSOR SPEED XXX.X % UNIT DATA FLASH TANK LEVEL > 512 ADC QUANTECH...
  • Page 146 VSD RUN RELAY ALL FAULTS VSD SOFTWARE RUN SIGNAL XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX UNIT OPERATING SCHEDULE XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX *=HOLIDAY MON START=00:00AM STOP=00:00AM The most recent fault will always be stored as TUE START=00:00AM STOP=00:00AM HISTORY BUFFER #1. WED START=00:00AM STOP=00:00AM THU START=00:00AM STOP=00:00AM QUANTECH...
  • Page 147: System Switches Key

    SYSTEM SWITCHES SYS 2 ON / OFF / RESET allows the compressors to go through ◄ ► =XXXXXXXXXXXXXXX a controlled shutdown. Avoid using the "UNIT" switch to turn off the compressors. QUANTECH...
  • Page 148 FORM QTC4-NM1 ISSUE DATE: 03/07/2018 THIS PAGE INTENTIONALLY LEFT BLANK QUANTECH...
  • Page 149: Section 9 - Maintenance

    Do not run with oil ter into a maintenance agreement with a Quantech ser- levels above the sight glass. Be careful when viewing vice organization to protect the operation of the unit.
  • Page 150: Refrigerant Removal, Evacuation And Charging A Qtc4 Chiller

    500 microns. Close the valves at the evacuation points and assure the pressure in the chiller does not rise more than 50 microns in 10 minutes. Check for leaks if the pressure rises. QUANTECH...
  • Page 151: Charging Refrigerant Into A System

    ‘major’ service once a to the coils. year. It is recommended that your local Quantech Sales Representative is contacted for recommendations for • DO NOT use a pressure washer to clean the coils.
  • Page 152: Maintenance Requirements For Qtc4 Chillers

    A record of this procedure be successfully carried out should be maintained on file by the equipment owner should proof of adequate maintenance be required at a later date for warranty purposes. QUANTECH...
  • Page 153: Table 25 - Troubleshooting Guide

    SYSTEM FAULT: Condenser Fans NOT operating or HIGH OIL TEMPERATURE Check Fans. running backwards. Coils dirty. Check and clean Coils. NOTE: Always remove power to the chiller and assure the DC Bus voltage has bled off. QUANTECH...
  • Page 154 Normal operation. SYSTEM FAULT: Fans NOT operating. Check fan operation. DISCHARGE PRESSURE LIMITING Remote or local discharge pressure Normal operation. load limiting is programmed. NOTE: Always remove power to the chiller and assure the DC Bus voltage has bled off. QUANTECH...
  • Page 155 SCR / Diode Module is defective. Check SCR / Diode Module. VSD FAULT: LOW DC BUS VOLTAGE SCR Trigger Board is defective. Check SCR Trigger Board. NOTE: Always remove power to the chiller and assure the DC Bus voltage has bled off. QUANTECH...
  • Page 156: Table 26 - Temperature Input Voltage Sensor (measured Signal To Shield At The Sensor)

    52.0 (11.1) 2.73 74.2 (23.4) 3.40 33.0 (0.6) 2.09 52.6 (11.4) 2.75 74.9 (23.8) 3.42 33.6 (0.9 ) 2.11 53.2 (11.8) 2.77 34.2 (1.2) 2.13 53.8 (12.1) 2.79 34.8 (1.5) 2.15 54.5 (12.5) 2.81 35.3 (1.8) 2.17 55.0 (12.8) 2.83 QUANTECH...
  • Page 157: Table 27 - Outside Air Temperature Sensor Input Voltage (measured Signal To Shield At The Sensor)

    85.7 (29.8) 3.11 44.3 (6.8) 1.82 86.7 (30.4) 3.13 45.2 (7.3) 1.85 87.8 (31) 3.16 46.1 (7.8) 1.88 88.9 (31.6) 3.19 47.0 (8.3) 1.91 90.1 (32.3) 3.22 48.0 (8.9) 1.94 91.1 (32.8) 3.25 48.9 (9.4) 1.97 92.2 (33.4) 3.28 QUANTECH...
  • Page 158: Table 28 - Pressure Transducer Output Voltage (measured Signal To Return At The Transducer)

    0.82 1.00 0.98 1.25 1.14 1.50 1.30 1.75 1.46 2.00 1.62 2.25 1.78 2.50 1.94 2.75 2.10 3.00 2.26 3.25 2.42 3.50 2.58 3.75 2.74 4.00 2.90 4.25 3.06 4.50 3.22 3.38 3.54 3.70 3.86 4.02 4.18 4.34 4.50 QUANTECH...
  • Page 159: Table 29 - Motor Temperature Sensor Resistance (check At The Motor)

    6.60 363.4 414.7 257 (125) 341.2 6.70 318.4 364.1 266 (130) 300.2 6.90 279.5 320.9 275 (135) 264.9 7.10 246.1 283.7 284 (140) 234.4 7.30 217.3 251.5 293 (145) 208.0 7.40 192.6 223.3 302 (150) 185.0 7.50 171.1 198.9 QUANTECH...
  • Page 160 FORM QTC4-NM1 ISSUE DATE: 03/07/2018 THIS PAGE INTENTIONALLY LEFT BLANK QUANTECH...
  • Page 161: Section 10 - Decommissioning, Dismantling And Disposal

    If no isolation valves are installed it may be necessary to drain the complete system. After removal from position the unit parts may be dis- posed of according to local laws and regulations. QUANTECH...
  • Page 162: Temperature

    (°C), subtract 32° and multiply by 5/9 or 0.5556. Example: (45.0°F - 32°) x 0.5556 = 7.22°C To convert a temperature range (i.e., a range of 10°F) from Fahrenheit to Celsius, multiply by 5/9 or 0.5556. Example: 10.0°F range x 0.5556 = 5.6 °C range QUANTECH...
  • Page 163 FORM QTC4-NM1 ISSUE DATE: 4/2/2018 NOTES QUANTECH...
  • Page 164 Form QTC4-NM1 (418) www.quantech-hvac.com Subject to change without notice. Printed in USA Issue Date: April 2, 2018 ALL RIGHTS RESERVED Supersedes QTC4-NM1 (318)

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