Lochinvar VERITUS 100 Series Installation & Operation Manual
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Lochinvar VERITUS 100 Series Installation & Operation Manual

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If the information in this manual
⚠
WARNING
is not followed exactly, electrical
shock or excessive pressure may result causing
property damage, personal injury, or loss of life.
-- Installation and service must be performed by a
qualified installer or service agency.
LOW LEAD CONTENT
*Models 200 through 350 are composed of combinations
of models 60 and 140 which are the certified units.
Installation & Operation Manual
Models: 60 - 350*
Series: 100
This manual must only be used by
⚠
WARNING
a qualified heating installer / service
technician. Read all instructions,
including this manual and the
Veritus Water Heater Service
Manual, before installing. Perform
steps in the order given. Failure
to comply could result in severe
personal injury, death, or substantial
property damage.
Save this manual for future reference.
100371005_2000627791_Rev C

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Summary of Contents for Lochinvar VERITUS 100 Series

  • Page 1 100371005_2000627791_Rev C Installation & Operation Manual Models: 60 - 350* Series: 100 If the information in this manual ⚠ WARNING is not followed exactly, electrical shock or excessive pressure may result causing property damage, personal injury, or loss of life. -- Installation and service must be performed by a qualified installer or service agency.

  • Page 2: Table Of Contents

    Contents HAZARD DEFINITIONS ........... 3 4. SYSTEM PIPING PLEASE READ BEFORE PROCEEDING ....4-5 System Water Piping Method ........... 25 INTRODUCTION ............6-7 Water Connections ............25 Installer Qualifications ............6 General Piping Information ..........25 Preparing for Installation ..........6-7 Cold Water Supply ............25 THE VERITUS WATER HEATER - HOW IT WORKS ..8-14 Water Pressure ..............

  • Page 3: Hazard Definitions

    Installation & Operation Manual Hazard definitions The following defined terms are used throughout this manual to bring attention to the presence of hazards of various risk levels or to important information concerning the life of the product. DANGER indicates an imminently hazardous situation which, if not avoided, will result in death or serious DANGER ⚠...

  • Page 4: Please Read Before Proceeding

    Installation & Operation Manual Please read before proceeding Read all instructions, including this manual ⚠WARNING DO NOT install units in rooms or ⚠WARNING and the Veritus Water Heater Service environments that contain corrosive Manual, before installing. Perform steps in contaminants (see Table 1-3 on page 19). the order given.
  • Page 5 Installation & Operation Manual Please read before proceeding (continued) This appliance is not intended for use by ⚠WARNING persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.

  • Page 6: Introduction

    Installation & Operation Manual Introduction PREPARING FOR INSTALLATION Thank you for purchasing this heat pump water heater. Properly installed and maintained, it should give you years of trouble- Read the entire manual carefully. If you don’t follow free service. the safety rules, the heat pump water heater may Abbreviations found in this instruction manual include: not operate safely.
  • Page 7 Installation & Operation Manual Introduction (continued) The installation must conform with these instructions and the local code authority having jurisdiction and the requirements of the power company. In the absence of local codes, the installation must comply with the latest editions of the National Electrical Code, ANSI/NFPA 70 or the Canadian Electrical code CSA C22.1.

  • Page 8: The Veritus Water Heater - How It Works

    Installation & Operation Manual The Veritus Water Heater - How it works... 16. Water Heater Inlet Temperature Sensor 1. Scroll Compressor This sensor monitors inlet water temperature. The control The refrigerant enters the compressor through the suction line as a module adjusts motorized ball valve and pump speed so the outlet low pressure vapor.
  • Page 9 Installation & Operation Manual The Veritus Water Heater - How it works... (continued) 36. Unit Pump 38. Water Manifolds The unit pump is variable speed with feedback control to regulate The inlet and outlet water manifolds allow for connecting multiple the water flow through the unit. units in series.
  • Page 10 Installation & Operation Manual The Veritus Water Heater - How it works... Model 60K Front View (HEX grill removed) - Model 60k Left Side (inside unit) - Model 60k Model 140K Front View (with lower panel & control panel Front View (with lower panel removed)- removed)- Model 140k Model 140K...
  • Page 11 Installation & Operation Manual The Veritus Water Heater - How it works... (continued) Model 140K Rear View (HEX grill removed) - Model 140K Rear View (lower rear panel removed) - Model 140K Front View (HEX grill removed) - Model 140k Left Side (inside unit) - Model 140k...
  • Page 12 Installation & Operation Manual The Veritus Water Heater - How it works... Manifold Without Pump Cover With Pump Cover Display Box Inside Display Panel Display Panel...

  • Page 13: Principle Of Operation

    Installation & Operation Manual The Veritus Water Heater - How it works... (continued) PRINCIPLE OF OPERATION Refrigerant leaving the condenser is a medium temperature high pressure liquid. It flows through the liquid line to the receiver, The units covered by this Instruction Manual are commercial then the filter drier, sight glass, and finally the electronic air to-water heat pump water heaters (HPWH).

  • Page 14: Air/ Water Temperature Range

    Installation & Operation Manual The Veritus Water Heater - How it works... AIR TEMPERATURE RANGE The entering air temperature operating range for the HPWH is 23°F to 120°F (-5°C to 49°C). When the HPWH is operating properly the air temperature drop through the evaporator heat exchanger will be approximately 12°F to 20°F (7°C to 12°C).

  • Page 15: Performance

    Installation & Operation Manual Performance LOW LEAD CONTENT Performance² Water Flow Rate Model Air Volume Water in GPM (Single Heating Capacity Number (CFM) Connection COPh Pass) BTU/hr AHP060 2.69 66,688 4.61 1543.95 1-1/2 NPT AHP140 5.22 136,381 4.27 5102.25 1-1/2 NPT AHP2001 7.91 203,069...

  • Page 16: Determine Water Heater Location

    Installation & Operation Manual Determine Water Heater Location Installation must comply with: Check around the water heater for any potential air contaminants that could risk corrosion to the water • Local, state, provincial, and national codes, laws, regulations, heater (see Table 1-3 on page 19). Remove any of these and ordinances.
  • Page 17 Installation & Operation Manual Determine Water Heater Location (continued) Clearances: Multiple appliances can be installed side by NOTICE side with no clearances between adjacent 1. Recommended clearances for service access, ducting or appliances because the appliances are air flow from the top of the unit is 48 inches. approved for zero clearances;...

  • Page 18: Provide Air Openings To Room

    Installation & Operation Manual Determine Water Heater Location Provide air openings to room: Air Temperature Veritus water heater alone in equipment Entering air temperature room The return (entering) air temperature range of operation for the unit is 23° - 120°F (-5°C to 49°C). The air temperature drop Conditioned space (Delta T - ΔT) through the evaporator (heat exchanger) will be When installed in a conditioned space ducting supply...

  • Page 19: Corrosive Contaminants And Sources

    Installation & Operation Manual Determine Water Heater Location (continued) Table 1-2 Voltage & Amperage Ratings Table 1-3 Corrosive Contaminants and Sources Model Volts/Phase/Hz Products to avoid: AHP060 440-480/3/60 16.9 Spray cans containing chloro/fluorocarbons AHP140 440-480/3/60 31.9 Permanent wave solutions AHP200 440-480/3/60 48.8 AHP280...

  • Page 20: Prepare Water Heater Remove Water Heater From Wood Pallet

    Installation & Operation Manual Prepare water heater Remove water heater from wood The HPWH unit is heaviest on the compressor side (left side when facing the front of the unit). The weight of an pallet AHP140 is 847 lbs. and the weight of an AHP60 is 671 1.

  • Page 21: Assemble Manifold

    Installation & Operation Manual Prepare water heater (continued) Assemble water manifold Figure 2-4 Remove lower front and rear panels before lifting unit The inlet and outlet manifolds are located in the parts box along with the mounting bracket and hardware. Figure 2-8 shows the manifold assembled and connected to the base.

  • Page 22: Installing Water Heater Required Ability

    Installation & Operation Manual Installing water heater Required Ability Refrigeration manifold gauges. Refrigeration charging scale. Installation and service of the HPWH unit requires ability equivalent to that of a qualified agency in the field involved. Refrigeration vacuum pump. Plumbing, ducting and electrical work are required. Refrigerant recovery machine.

  • Page 23: Electrical Connections

    Installation & Operation Manual Installing water heater (continued) Figure 2-10 Display Panel Mounting on the Unit Water Connections Water piping must be installed in accordance with the instructions in this manual and all local plumbing codes having jurisdiction. See Piping Diagrams on pages 28-35 as a reference for these instructions.

  • Page 24: Single Tank Configuration

    Installation & Operation Manual Installing water heater Condensate Drain Line Do not use check valves between the heat pump outlet and tank unless required by code on the system diagrams. The HPWH unit must be plumbed to permit condensate Internal ball valves can prevent hot water short circuiting. drainage.

  • Page 25: System Piping

    Installation & Operation Manual System Piping Read all installation requirements in this manual before *Please note that these illustrations are NOTICE meant to show system piping concept only, installation begins. the installer is responsible for all equipment The water piping installation must conform to these instructions and detailing required by local codes.

  • Page 26: Scalding

    Tank Sensor diagrams on pages 28-35. The recommended length of Lochinvar supplies a tank sensor. The tank sensor must be equivalent piping between the tank and water heater should installed in the tapping provided in the lower/mid section of be kept to a maximum of 500 feet. Reducing the pipe size or the storage tank to achieve proper operation.

  • Page 27: Temperature Sensor Installation

    Installation & Operation Manual System Piping (continued) System Supply Sensor Expansion Tank This sensor is optional and should be located between the tank A properly sized thermal expansion tank must be installed on outlet and mixing valve. If this optional sensor is used, the all closed systems to control the harmful effects of thermal Boost function may become active.

  • Page 28: Piping Diagrams

    Installation & Operation Manual System Piping SINGLE PASS, RETURN TO PRIMARY: ONE HEAT PUMP, ONE TANK Figure 4-2 Single Pass - One Heater, One Tank NOTES: 1. DRAWING ILLUSTRATES SUGGESTED PIPING CONFIGURATION Min. Required Pipe Size in NPT LOCAL CODES AND ORDINANCES MAY HAVE ADDITIONAL REQUIREMENTS Model ( ≤...
  • Page 29 Installation & Operation Manual SINGLE PASS, RETURN TO PRIMARY: System Piping (continued) ONE HEAT PUMP, ONE TANK, PARALLEL BACKUP Figure 4-3 Single Pass - One Heater, One Tank with Parallel Backup NOTES: 1. DRAWING ILLUSTRATES SUGGESTED PIPING CONFIGURATION LOCAL CODES AND ORDINANCES MAY HAVE ADDITIONAL REQUIREMENTS Min.
  • Page 30 Installation & Operation Manual System Piping SINGLE PASS RETURN TO PRIMARY: ONE HEAT PUMP, TWO TANKS Figure 4-4 Single Pass - One Heater, Two Tanks NOTES: 1. DRAWING ILLUSTRATES SUGGESTED PIPING CONFIGURATION Min. Required Pipe Size in NPT LOCAL CODES AND ORDINANCES MAY HAVE ADDITIONAL REQUIREMENTS Model ( ≤...
  • Page 31 Installation & Operation Manual System Piping SINGLE PASS RETURN TO SWING TANK: (continued) TWO HEAT PUMPS, ONE TANK, SWING TANK Figure 4-5 Single Pass - Two Heaters, One Tank with Swing Tank and Gas Backup Heat NOTES: 1. DRAWING ILLUSTRATES SUGGESTED PIPING CONFIGURATION LOCAL CODES AND ORDINANCES MAY HAVE ADDITIONAL REQUIREMENTS Min.
  • Page 32 Installation & Operation Manual System Piping SINGLE PASS RETURN TO SWING TANK: TWO HEAT PUMPS, ONE TANK, SWING TANK Figure 4-6 Single Pass - Two Heaters, One Tank with Swing Tank NOTES: 1. DRAWING ILLUSTRATES SUGGESTED PIPING CONFIGURATION LOCAL CODES AND ORDINANCES MAY HAVE ADDITIONAL REQUIREMENTS Min.
  • Page 33 Installation & Operation Manual SINGLE PASS RETURN TO PRIMARY: System Piping (continued) TWO HEAT PUMPS, TWO TANKS Figure 4-7 Single Pass - Two Heaters, Two Tanks NOTES: 1. DRAWING ILLUSTRATES SUGGESTED PIPING CONFIGURATION LOCAL CODES AND ORDINANCES MAY HAVE ADDITIONAL REQUIREMENTS Min.
  • Page 34 Installation & Operation Manual System Piping SINGLE PASS RETURN TO PRIMARY: Figure 4-8 Single Pass - Two Heaters, Two Tanks with Electric Backup TWO HEAT PUMPS, TWO TANKS, ELECTRIC BACKUP Min. Required Pipe Size in NPT NOTES: Model 1. DRAWING ILLUSTRATES SUGGESTED PIPING CONFIGURATION ( ≤...
  • Page 35 Installation & Operation Manual System Piping MULTI PASS, RETURN TO PRIMARY: (continued) ONE HEAT PUMP, ONE TANK Figure 4-9 Multi Pass - One Heater, One Tank NOTES: 1. DRAWING ILLUSTRATES SUGGESTED PIPING CONFIGURATION Min. Required Pipe Size in NPT LOCAL CODES AND ORDINANCES MAY HAVE ADDITIONAL REQUIREMENTS Model ( ≤...

  • Page 36: Air Flow And Ducting General Guidelines

    Installation & Operation Manual Air Flow and Ducting General Guidelines Ducting Multiple Units Review Locating The Water Heater on page 16, and this section The HPWHs can be ducted together into a common header, prior to connecting ductwork to the HPWH. but only if the static pressure can be maintained with the other pieces of equipment.

  • Page 37: Supply Air Ducting

    Installation & Operation Manual Air Flow and Ducting (continued) Supply Air Ducting • The air temperature drops approximately 12°F to 20°F (7°C to 11°C) as it flows through the HPWH unit. If the return air Observe and follow these guidelines and instructions when to the HPWH unit is derived from a location that is above installing supply (outlet) air duct: 80°F (27°C) the supply air from the HPWH unit will not be...

  • Page 38: Return Air Ducting

    Installation & Operation Manual Air Flow and Ducting Return Air Ducting Figure 5-2 Return air ducting Observe and follow these guidelines and instructions when installing return (inlet) air duct: • All ductwork and plenums shall be field supplied or fabricated. •...

  • Page 39: Outdoor Installations Outdoor Air Inlet And Outlet

    Installation & Operation Manual Outdoor Installations Outdoor Air Inlet and Outlet Keep HPWH air intake areas free of obstructions. Keep area clean and free of corrosive materials. Maintain a minimum of 36 inches (915 mm) clearance to the air inlet. To avoid a blocked air inlet or outlet condition, keep the air inlet, air outlet, and drain clear of leaves, debris, etc.

  • Page 40: Field Wiring

    Installation & Operation Manual Field Wiring Installation must comply with: ELECTRICAL SHOCK HAZARD – For WARNING ⚠ your safety, turn off electrical power supply National Electrical Code and any other national, state, before making any electrical connections provincial, or local codes, or regulations. to avoid possible electric shock hazard.
  • Page 41 Installation & Operation Manual Field Wiring (continued) Figure 7-2 Pump Wiring Figure 7-3 Wiring Display Box Power...

  • Page 42: Low Voltage Connections

    Installation & Operation Manual Field Wiring Low Voltage Connections ModBus / BACnet Route all low voltage wires through the knockouts in the When the optional ModBus / BACnet interface module is bottom of the display panel, and reference connections in installed, the RS-485 ModBus / BACnet cable is connected Figure 7-5.
  • Page 43 Installation & Operation Manual Field Wiring (continued) Communication between water heaters is accomplished by Figure 7-4 Cascade Connections using the shielded, 2-wire twisted pair harness that is provided. System Control This harness will connect the system control board (SCB) to the first heat pump control board (HPC), and then connect every subsequent heat pump control board (HPC) in the cascade.
  • Page 44 Installation & Operation Manual Field Wiring Figure 7-5 System Control Board Wiring Connections...

  • Page 45: Installation Checklist

    Installation & Operation Manual Installation Checklist The list below represents some of the most critical installation Tee into the inlet of the HPWH, but in some cases requirements that, when overlooked, often result in operational piping directly to the tank is possible. See the Service and problems, down time and needless parts replacement.

  • Page 46: Start-Up

    Installation & Operation Manual Start-up 3 Phase Start-Up Procedures Check/control Water Chemistry Conduct water quality testing prior to Make sure the disconnect is off and confirm there is no NOTICE installing the appliance. Various solutions power on the distribution block on the electrical panel. are available to adjust water quality.
  • Page 47 Installation & Operation Manual Start-up (continued) Initial Start-up Display Panel Startup Before applying power, check all electrical connections. Display control panel can be mounted on the side of the Tighten if necessary. unit or in an equipment room (maximum distance from heat pump is 400 meters), and requires a 120VAC single Verify electrical installation.
  • Page 48 Installation & Operation Manual Start-up Rotation Direction Start-up Scroll compressors, like several other types of compressors, This start-up refers to several tools and test instruments will only compress in one rotational direction. Three-phase needed to complete the procedure. See Required Tools and compressors will rotate in either direction depending upon Materials on page 22.
  • Page 49 Installation & Operation Manual Start-up (continued) If the HPWH does not start immediately: • Wait 10 minutes in case the anti short cycle timer has halted operation. This control system feature protects the HPWH from rapid short cycling that can cause permanent damage to the unit.
  • Page 50 Installation & Operation Manual Start-up Adjust set point temperature(s) Set clock During normal operation, set point temperatures can be The SMART TOUCH control has a built-in clock that it uses adjusted from the Home Screen by pressing the SETPOINT for its night setback feature and for logging events. This clock button in the middle of the screen (see FIG.
  • Page 51 Installation & Operation Manual Start-up (continued) Figure 9-2 User Set Point Screen Configuration of the cascade Configuration of the cascade will happen automatically on start up. The system control board will assign addresses to each unit on initial startup. This will enable cascading of the heat pumps.

  • Page 52: Operating Information

    Installation & Operation Manual Operating Information General Vacation Mode How the water heater operates This mode is used to reduce temperature setpoint by the vacation offset while the building is not occupied. If enabled The Veritus water heater uses a scroll compressor to compress the tank setpoint temperature will be reduced by the amount low pressure vapor refrigerant to a high pressure vapor state.
  • Page 53 Installation & Operation Manual Operating Information (continued) Short Cycling Runtime and alarm outputs The Veritus heat pump has a built in “Anti-Cycle” to protect The water heater provides dry contacts for indicating when the the compressor from starting too frequently. The compressor water heater is running, and when it is unable to operate.

  • Page 54: Cascade

    Installation & Operation Manual Operating Information Sequence of the cascade Low water cutoff protection To equalize the runtime of all water heaters on the Cascade, The SMART TOUCH control module uses temperature the operating sequence will automatically be changed at set sensing of both supply and return areas of the heat intervals.

  • Page 55: Sequence Of Operation

    Installation & Operation Manual Operating Information (continued) Sequence of operation Upon a call for heat, the control turns on the DHW pump. The control energizes the louvers (optional). The control confirms that the refrigerant high and low pressure switches, blocked drain switch, limits, louver proving switch (optional), and contacts close.

  • Page 56: Water Heater Control Module

    There are five (5) sections located below the and the setpoint button for adjusting setpoint. Lochinvar icon: Home, View, Setup, Information (About), and Settings. The Home Section is the screen shown • The System Sensor Section is located on the top right of the above.

  • Page 57: Maintenance Maintenance And Annual Startup

    Installation & Operation Manual Maintenance Maintenance and annual startup Table 11-1 Service and Maintenance Schedules Service technician Owner maintenance (see the following pages for instructions) General: • Address reported problems • Check water heater area • Inspect water heater area Daily •...
  • Page 58 Installation & Operation Manual Maintenance Follow the service and maintenance procedures given throughout this manual and in component literature WARNING ⚠ shipped with the water heater. Failure to perform the service and maintenance could result in damage to the water heater or system. Failure to follow the directions in this manual and component literature could result in severe personal injury, death, or substantial property damage.
  • Page 59 Installation & Operation Manual Maintenance (continued) Check expansion tank Expansion tanks provide space for water to move in and out as After following the above warning directions, if the relief the heating system water expands due to temperature increase valve weeps or will not seat properly, immediately close or contracts as the water cools.
  • Page 60 Installation & Operation Manual Maintenance Evaporator Cleaning and Inspection Remove as much dirt and organic material from the insulation using a vacuum device with a HEPA filter Read all of the warnings provided for the (99.97%) efficient at 0.3 micron particles). Be careful not to WARNING ⚠...
  • Page 61 Installation & Operation Manual Maintenance (continued) Inspecting Fan Assembly Superheat Before performing any maintenance on the fan assembly, Use the display screen to record the ambient temperature disconnect all power to the unit and follow the prescribed and measured superheat. lockout/ tag-out procedure.
  • Page 62 Installation & Operation Manual Maintenance Table 11-4 Saturated Temperature Chart R513A SATURATED TEMPERATURE CHART Saturated Temperature °F Saturated Temperature °C Saturated Pressure PSI 11.9 15.0 18.3 21.9 25.9 30.1 34.6 39.6 44.8 50.5 56.5 63.0 69.9 77.3 85.1 93.4 102.0 112.0 121.0 132.0...
  • Page 63 Installation & Operation Manual Maintenance (continued) Troubleshooting Problem Possible Causes Corrections Sheet Metal fasteners are loose. • Tighten Fasteners Heat Pump is too noisy Operating vibration is transferring to • Place vibration dampers underneath floor or building structure. unit • Repair leaks as necessary Tubing, valves, or fittings are leaking.
  • Page 64 Installation & Operation Manual Maintenance Troubleshooting continued Problem Possible Causes Corrections • Set thermostat for storage tank to a higher temperature • Increase size of storage tank or install Thermostat setting is too low gas or electric heater to make up for Heat pump/storage tank undersized shortfall for application...

  • Page 65: Diagrams

    Installation & Operation Manual Diagrams Figure 12-1 Ladder Diagram WARNING DISCONNECT POWER BEFORE SERVICING J25-2 J23-1 BOX DEPICTS 480 VAC DUAL SENSOR J23-2 SINGLE HOUSING 120 VAC J25-1 J23-3 Low Voltage BOX DEPICTS OPTIONAL ITEMS J19-1 24VAC-L ---- J10-1 J19-2 ---- ---- J10-2 J19-3 24VAC-N Backup 1 J10-3...

  • Page 66: Wiring Diagram

    J8D ---- System Supply J20-11 J26E DGND Sys Supply Ret J20-12 J8A RCAD-A Recirc J8B RCAD-B Installation & Operation Manual J8C DGND J8D ---- Syst Diagrams Figure 12-2 Wiring Diagram NOTES: BOX DEPICTS NING 480 VAC DUAL SENSOR 1. All wiring must be installed in accordance with: local, state, provincial and national code requirements per either N.E.C. in USA or C.S.A. in Canada. SINGLE HOUSING 120 VAC 2.
  • Page 67 Installation & Operation Manual Notes...

  • Page 68: Revision Notes

    Revision Notes: Revision A (PCP #3000056598/ CN #500042943) initial release. Revision B (PCP #3000057735/ CN #500043946) reflects updates throughout. Revision C (PCP #3000058985 / CN #500045045) relfects updates throughout prior to release. 100371005_2000627791_Rev C 12/23...

This manual is also suitable for:

Veritus 60kVeritus 140kVeritus ahp060Veritus ahp140Veritus ahp2001Veritus ahp2801 ... Show all

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