Related Manuals for Heat Controller HTV Series
Summary of Contents for Heat Controller HTV Series
- Page 1 INSTALLATION, OPERATION & MAINTENANCE HTV/HTD/HTH Series Two-Stage Geothermal Heat Pumps 2 to 6 Tons Heat Controller, Inc. • 1900 Wellworth Ave. • Jackson, MI 49203 • (517)787-2100 • www.heatcontroller.com...
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Page 2: Table Of Contents
Heat Controller GeoMax 2 Geothermal Heat Pump Systems HTV/HTD/HTH SERIES Heat Controller, Inc. Model Breakdown Model nomenclature – Two Stage geothermal heat Pump P = Back W = Straight H = Horizontal J = Cupro-Nickel Table of Contents Model Nomenclature ............ 1 Electrical-Low Voltage Wiring........ - Page 3 DANGER labels on unit access panels HTV/HTD/HTH SERIES Heat Controller, Inc. must be observed. ⌧ WARNING! ⌧ SAFETY NOTICE: Notification of installation, WARNING: Indicates a potentially...
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Page 4: Storage
HTV/HTD/HTH SERIES Heat Controller, Inc. GENERAL INFORMATION General Information PRE-INSTALLATION INSPECTION This Installation, Operation, and Upon receipt of the equipment, carefully Maintenance manual is provided with each check the shipment against the bill of unit. Units are typically installed in a lading. -
Page 5: Physical Data
HTV/HTD/HTH SERIES Heat Controller, Inc. GENERAL INFORMATION General Information CAUTION! CAUTION! CAUTION! CAUTION! DO NOT store or install CUT HAZARD units in corrosive environments or in Failure to follow this caution may result in locations subject to temperature or personal injury. -
Page 6: Duct System Installation
HTV/HTD/HTH SERIES Heat Controller, Inc. DUCT SYSTEM INSTALLATION Duct System Installation DUCT SYSTEM INSTALLATION INSTALLATION Proper duct sizing and design is critical to the performance of the unit. The duct system should be designed to allow adequate airflow VERTICAL UNIT LOCATION through the unit during operation. - Page 7 INSTALLATION HTV/HTD/HTH SERIES Heat Controller, Inc. 2. Provide adequate clearance for filter replacement and drain pan cleaning. Do not block filter access with piping, conduit or other materials. Refer to Figure 1: Unit Mounting or Engineering Design Guide for unit submittal data or Engineering Design Guide for dimensional data.
- Page 8 INSTALLATION HTV/HTD/HTH SERIES Heat Controller, Inc. SOUND ATTENUATION CONDENSATE PIPING Sound attenuation is achieved by These units utilize a condensate hose enclosing the unit within a small inside the cabinet as a trapping loop; mechanical room or a closet. Additional...
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Page 9: Horizontal Unit Location
HTV/HTD/HTH SERIES Heat Controller, Inc. Horizontal Unit Location Mounting Horizontal Units Units are not designed for outdoor installation. Locate Horizontal units have hanger kits pre-installed from the the unit in an INDOOR area that allows enough space for factory as shown in Figure 1. Figure 3 shows a typical service personnel to perform typical maintenance or repairs horizontal unit installation. -
Page 10: Swivel (In)
HTV/HTD/HTH SERIES Heat Controller, Inc. HORIZONTAL INSTALLATION Figure 3: Typical Horizontal Unit Installation Figure 3: Typical Horizontal Unit Installation 3/8" [10mm] threaded rods (by others) Return Air Thermostat Stainless steel braid hose Wiring with integral "J" swivel Power Wiring Optional Balancing Valve... - Page 11 HTV/HTD/HTH SERIES Heat Controller, Inc. Overview Figure 4: Left Return Side to Back Horizontal units can be field converted between side Remove Screws Water (straight) and back (end) discharge using the instructions Connection End below. Return Air Note: It is not possible to field convert return air between left or right return models due to the necessity of refrigeration copper piping changes.
- Page 12 HTV/HTD/HTH SERIES Heat Controller, Inc. Condensate Piping – Horizontal Units Figure 6: Horizontal Condensate Connection Pitch the unit toward the drain as shown in Figure 2 to improve the condensate drainage. On small units (less than 2.5 tons/8.8 kW), insure that unit pitch does not cause condensate leaks inside the cabinet.
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Page 13: Piping Installation
HTV/HTD/HTH SERIES Heat Controller, Inc. PIPING INSTALLATION Piping Installation INSTALLATION OF SUPPLY AND RETURN Note: When anti-freeze is used in the PIPING loop, insure that it is compatible with the Follow these piping guidelines Teflon tape or pipe joint compound that is 1. - Page 14 PIPING INSTALLATION HTV/HTD/HTH SERIES Heat Controller, Inc. NOTICE! Do not allow hoses to rest CAUTION! against structural building components. Compressor vibration may be transmitted through the hoses to t he structure, causing CAUTION! Piping must comply with all unnecessary noise.
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Page 15: Ground Loop Applications
HTV/HTD/HTH SERIES Heat Controller, Inc. GROUND-LOOP HEAT PUMP APPLICATIONS Ground-Loop Heat Pump Applications All plastic to metal threaded ttings should CAUTION! be avoided due to their potential to leak in earth coupled applications. A anged tting should be substituted. P/T plugs... - Page 16 GROUND-LOOP HEAT PUMP APPLICATIONS HTV/HTD/HTH SERIES Heat Controller, Inc. 3. Try to maintain a uid level in the tank Run the unit in either heating or cooling for a above the return tee so that air cannot number of minutes to condition the loop to a be continuously mixed back into the homogenous temperature.
- Page 17 GROUND-LOOP HEAT PUMP APPLICATIONS HTV/HTD/HTH SERIES Heat Controller, Inc. All alcohols should be premixed and LOW WATER TEMPERATURE CUTOUT pumped from a reservoir outside of the SETTING building when possible or introduced under CXM Control the water level to prevent fumes. Calculate When antifreeze is selected, the FP1 jumper the total volume of uid in the piping system.
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Page 18: Open Loop-Ground Water Systems
GROUND-WATER HEAT PUMP APPLICATIONS HTV/HTD/HTH SERIES Heat Controller, Inc. OPEN LOOP-GROUND WATER SYSTEMS If the pH ‹7.5 and the calcium hardness is Typical open loop piping is shown in Figure less than 100 ppm, scaling potential is low. 7. Shut o valves should be included for... - Page 19 GROUND-WATER HEAT PUMP APPLICATIONS HTV/HTD/HTH SERIES Heat Controller, Inc. If water hammer persists, a mini-expansion Adjust the valve until the desired flow of 1.5 tank can be mounted on the piping to help to 2 gpm per ton is achieved. A second absorb the excess hammer shock.
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Page 20: Hot Water Generator
HTV/HTD/HTH SERIES Heat Controller, Inc. Hot Water Generator The HWG (Hot Water Generator) or desuperheater option Electric water heaters are recommended. If a gas, provides considerable operating cost savings by utilizing propane, or oil water heater is used, a second preheat excess heat energy from the heat pump to help satisfy tank must be installed (Figure 15). - Page 21 HTV/HTD/HTH SERIES Heat Controller, Inc. Installation ANTI-SCALD COLD WATER The HWG is controlled by two sensors and a microprocessor VALVE PIPING SUPPLY CONNECTIONS control. One sensor is located on the compressor discharge CHECK VALVE line to sense the discharge refrigerant temperature. The other sensor is located on the HWG heat exchanger’s “Water...
- Page 22 HTV/HTD/HTH SERIES Heat Controller, Inc. Warning! The HWG pump Is fully wired from the piping. This will purge air from the HWG piping. factory. Use extreme caution when working around Open a hot water faucet to vent air from the system the microprocessor control as it contains line voltage until water flows from faucet;...
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Page 23: Water Quality Standards
HTV/HTD/HTH SERIES Heat Controller, Inc. Notes: • Closed Recirculating system is identified by a closed pressurized piping system. WATER QUALITY STANDARDS • Recirculating open wells should observe the o pen recirculating design Water Quality Standards considerations. Table 3: Water Quality Standards... -
Page 24: Electrical-Line Voltage
HTV/HTD/HTH SERIES Heat Controller, Inc. ELECTRICAL - LINE VOLTAGE Electrical - Line Voltage ELECTRICAL - LINE VOLTAGE WARNING! All eld installed wiring, including electrical ground, must comply with the National Electrical Code as well as all applicable WARNING! To avoid possible injury local codes. -
Page 25: Power Wiring
Refer to the unit electrical controls (see “ECM Blower Control”). Most data for fuse sizes. Consult wiring diagram Heat Controller units are shipped on the Consult Engineering Design Guide for for field connections that must be made by specific unit airflow tables. -
Page 26: Electrical-Low Voltage Wiring
10°F refrigerant temperature, a more SELECTION suitable temperature when using an The CXM control allows the field selection of antifreeze solution. All Heat Controller low water (or water-antifreeze solution) units operating with entering water temperature limit by clipping jumper JW3, temperatures below 59°F include the... -
Page 27: Water Valve Wiring
HTV/HTD/HTH SERIES Heat Controller, Inc. ELECTRICAL - LOW VOLTAGE WIRING Electrical - Low Voltage Wiring ACCESSORY CONNECTIONS valve wiring for Taco 500 Series and Taco A terminal paralleling the compressor ESP Series valves. Slow closing valves contactor coil has been provided on the take approximately 60 seconds to open CXM control. - Page 28 ELECTRICAL - LOW VOLTAGE WIRING HTV/HTD/HTH SERIES Heat Controller, Inc. Figure 14 illustrates piping for two-stage solenoid valves. Review Figures 11 - 13 for wiring of stage one valve. Stage two valve should be wired between terminal “Y2” (ECM board) and terminal “C”. NOTE: When EWT is below 50°F, 2 gpm per ton is...
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Page 29: Thermostat Wiring
Practically any heat pump thermostat will erroneous temperature measurement. work with Heat Controller units, provided it Position the thermostat back plate against has the correct number of heating and the wall so that it appears level and so the cooling stages. -
Page 30: Ecm Blower Control
HTV/HTD/HTH SERIES Heat Controller, Inc. ECM BLOWER CONTROL ECM Blower Control The ECM fan is controlled by an interface Auxiliary/Emergency Heat Settings: The board that converts thermostat inputs and auxiliary/emergency heat setting determines field selectable CFM settings to signals used the CFM when the unit is in auxiliary heat or by the ECM motor controller. -
Page 31: Ecm Blower Control
ECM BLOWER CONTROL HTV/HTD/HTH SERIES Heat Controller, Inc. Any time the unit is running in the cooling mode, it will operate at the lower airflow to improve Figure 16: ECM Interface Layout latent capacity. The “DEHUM” LED will be illuminated at all times. Heating airflow is not affected. -
Page 32: Electrical Wiring Schematics
HTV/HTD/HTH SERIES Heat Controller, Inc. Typical Wiring Diagram HTV/HTD/HTH Units with CXM Board and ECM Fan Motor (single phase) -
Page 33: Cxm Controls
HTV/HTD/HTH SERIES Heat Controller, Inc. CXM CONTROLS CXM Controls CXM CONTROL Air Coil Low Temperature Limit Setting: For detailed control information, see CXM Jumper 2 (JW2-FP2 Low Temp) provides Application, Operation and Maintenance field selection of temperature limit setting for FP2 of 30°F or 10°F (refrigerant... - Page 34 CXM CONTROLS HTV/HTD/HTH SERIES Heat Controller, Inc. DIP Switch 4: DDC Output at EH2 - provides selection for DDC operation. If set to “DDC Output at EH2,” the EH2 terminal will continuously output the last fault code of the controller. If set to “EH2 normal,” EH2 will ⌧...
- Page 35 SAFETY FEATURES - CXM CONTROLS HTV/HTD/HTH SERIES Heat Controller, Inc. Safety Features - CXM Controls Safety Features: de-energized immediately since the high The safety features below are provided to pressure switch is in series with the protect the compressor, heat exchangers, compressor contactor coil.
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Page 36: Cxm Controls
SAFETY FEATURES - CXM CONTROLS HTV/HTD/HTH SERIES Heat Controller, Inc. Swapped FP1/FP2 thermistors: During test Condensate Overflow: The condensate mode, the control monitors to see if the FP1 overflow sensor must sense overflow level for and FP2 thermistors are in the appropriate 30 continuous seconds to be recognized as a places. -
Page 37: Unit Commissioning And Operating Conditions
HTV/HTD/HTH SERIES Heat Controller, Inc. Unit Commissioning And Operating Conditions Operating Limits Environment – Units are designed for indoor installation only. Never install units in areas subject to freezing or where humidity levels could cause cabinet condensation (such as unconditioned spaces subject to 100% outside air). -
Page 38: Unit Starting And Operating Conditions
HTV/HTD/HTH SERIES Heat Controller, Inc. Unit Starting And Operating Conditions UNIT STARTING AND OPERATING CONDITIONS DO NOT use “Stop Leak” or similar DO NOT oil motors. Check unit fan speed chemical agent in this system. selection and compare to design Addition of chemicals of this type to requirements. - Page 39 HTV/HTD/HTH SERIES Heat Controller, Inc. 5. Two factors determine the operating ⌧ CAUTION! ⌧ limits of Heat Controller heat pumps, (a) return air temperature, and (b) water CAUTION! Verify that ALL water temperature. When any one of these control valves are open and allow...
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Page 40: Unit Start-Up Procedure
HTV/HTD/HTH SERIES Heat Controller, Inc. UNIT START-UP PROCEDURE Unit Start-Up Procedure by comparing unit pressure drop Heat of rejection (HR) can be across the heat exchanger versus the calculated and compared to data in Table 8. Heat of extraction submittal data capacity pages. -
Page 41: Coax Pressure Drop Table
HTV/HTD/HTH SERIES Heat Controller, Inc. Unit Start-Up Procedure UNIT START-UP PROCEDURE UNIT START-UP PROCEDURE WARNING! WARNING! Figure 17: Test Mode Pins WARNING! When the disconnect Figure 17: Test Mode Pins WARNING! When the disconnect switch is closed, high voltage is... -
Page 42: Operating Pressures
UNIT OPERATING CONDITIONS HTV/HTD/HTH SERIES Heat Controller, Inc. NOTE: Table 9 includes the following notes: • HTV/HTD units have TXV expansion device; HTV/HTD/HTH units have TXV expansion device; • Cooling air and water values can vary • Air ow is at nominal (rated) conditions;... -
Page 43: Operating Pressures
HTV/HTD/HTH SERIES Heat Controller, Inc. Table 9: HTV/HTD/HTH Typical Unit Operating Pressures and Temperatures (60 Hz) - continued... -
Page 44: Preventive Maintenance
HTV/HTD/HTH SERIES Heat Controller, Inc. PREVENTIVE MAINTENANCE Preventive Maintenance Hot Water Generator Coils Water Coil Maintenance See water coil maintenance for ground water (Direct ground water applications only) units. If the potable water is hard or not If the system is installed in an area with a chemically softened, the high temperatures of known high mineral content (125 P.P.M. - Page 45 PREVENTIVE MAINTENANCE HTV/HTD/HTH SERIES Heat Controller, Inc. The condensate pan may also need to be Refrigerant System cleaned periodically to insure indoor air To main tain sealed circuit integrity, do not quality. The condensate drain can pick up install service gauges unless unit operation lint and dirt, especially with dirty filters.
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Page 46: Functional And Performance Troubleshooting
HTV/HTD/HTH SERIES Heat Controller, Inc. FUNCTIONAL TROUBLESHOOTING Functional Troubleshooting Fault Possible Cause Solution Main Power Problems Green Status Led Off Check line voltage circuit breaker and cisconnect Check for line voltage between L1 and L2 on Check for 24 VAC between R and C on CXM... - Page 47 HTV/HTD/HTH SERIES Heat Controller, Inc. FUNCTIONAL TROUBLESHOOTING Functional Troubleshooting Fault Possible Cause Solution Condensate Fault - Blocked Drain Check for blockage and clean drain Code 6 Improper Trap Check trap dimensions and location Poor Drainage Check for piping slope away from unit Poor venting.
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Page 48: Performance Troubleshooting
FUNCTIONAL TROUBLESHOOTING HTV/HTD/HTH SERIES Heat Controller, Inc. FUNCTIONAL TROUBLESHOOTING Functional Troubleshooting Fault Possible Cause Solution Unit Does Not Operate Reversing Valve Set for cooling demand and check 24 VAC on RV Fault Possible Cause Solution in Cooling CXM board Unit Does Not Operate... - Page 49 HTV/HTD/HTH SERIES Heat Controller, Inc. PERFORMANCE TROUBLESHOOTING Performance Troubleshooting Performance Possible Cause Solution Troubleshooting High Head Pressure Reduced or No Air Flow in Heating Check for dirty air filter and clean or replace Check fan motor operation and airflow restriction Too high of external static.
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Page 50: Troubleshooting Form
HTV/HTD/HTH SERIES Heat Controller, Inc. TROUBLESHOOTING FORM Troubleshooting Form Heat of Extraction (Absorption) or Heat of Rejection = Flow rate gpm 500* x °F (water temp. difference) = BTUH (heat absorbed or rejected) Superheat = Suction temp - Suction saturation temp = _____________°F Superheat Subcooling = Discharge Saturation Temp - Liquid Line Temp. - Page 51 Design, material, performance data and components subject to change without notice. 1900 Wellworth Ave., Jackson, Michigan 49203 • Ph. 517-787-2100 • Fax 517-787-9341 THE QUALITY LEADER CONDITIONING AIR www.heatcontroller.com 08-2011 03/06/2009...