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Heat Link ® TWH070Z, TWH070XPZ Tankless Water Heater Panels with Zoning Installation, Operation, and Maintenance Manual TWH070Z HeatLink Group Inc. 4603E - 13th Street NE Calgary, Alberta, Canada T2E 6M3 Phone: (403) 250-3432 Fax: (403) 250-1155 www.heatlinkgroup.com 3189472 L WARNING!!! Consult Manual Before Use AVERTISSEMENT!!! Consulter le manual avant l’usage MODEL #: TWH070P Serial #: XXX-XXXX D.O.M: Feb 14, 2013 Phase/Freq: 1/60 Cycles Max Pres: 125psi/862kPa Max Temp: 100C/212F Volts: 120/24 VAC Amps: Maximum 15 N I1 I2 I3 I4 I5 I6 I7 I8 I9 IA IB IC Inputs I1...IC 24VAC 24VAC SR2 E201B Conforms to Std CAN/CSA C22.2 No. 14 Conforms to Standard UL 508 MADE IN CANADA U/Run Outputs Q1...Q8 : Relay 8A 1 Q1 2 1 Q2 2 1 Q3 2 1 Q4 2 1 Q5 2 1 Q6 2 1 Q7 2 1 CAUTION Q8 TWH070XPZ 2 Aux Contacts Before servicing disconnect power supply. HeatLink Group Inc. 4603E - 13th Street NE Calgary, Alberta, Canada T2E 6M3 Phone: (403) 250-3432 Fax: (403) 250-1155 www.heatlinkgroup.com Flow Switch Zone 1 Zone 2 3189472 L WARNING!!! Consult Manual Before Use AVERTISSEMENT!!! Consulter le manual avant l’usage MODEL #: TWH070XP N I1 I2 I3 I4 I5 I6 Phase/Freq: 1/60 Cycles Max Temp: 100C/212F Volts: 120/24 VAC IP42 TF 95 Max. 1.0MPa 203°F Max. water temp. IMPEDANCE PROTECTED FOR INDOOR USE ONLY IA IB IC Amps: Maximum 15 U/Run Outputs Q1...Q8 : Relay 8A T/Stat 1 T/Stat 2 T/Stat 3 T/Stat 4 P 1 (W) 0.51 56 0.59 67 0.64 73 FR |1/1 (A) I9 Conforms to Std CAN/CSA C22.2 No. 14 Conforms to Standard UL 508 Zone 4 P/N: 97948357 PC: 1131HLK I8 SR2 E201B MADE IN CANADA Zone 3 Type UPS 15-58 CIL2 115 V ~ 60 Hz 8 μF I7 Inputs I1...IC 24VAC 24VAC Serial #: XXX-XXXX D.O.M: Feb 14, 2013 Max Pres: 125psi/862kPa 1 Q1 2 1 Q2 2 1 Q3 2 1 Q4 2 1 Q5 2 1 Q6 2 1 Q7 2 1 CAUTION Q8 2 Aux Contacts Before servicing disconnect power supply. Flow Switch Zone 1 Zone 2 Zone 3 Zone 4 FLOOR (Upper Pipe) Type UPS 15-58 CIL2 115 V ~ 60 Hz 8 μF P 1 (W) 0.51 56 0.59 67 0.64 73 P/N: 97948357 PC: 1131HLK FR |1/1 (A) IP42 TF 95 Max. 1.0MPa 203°F Max. water temp. IMPEDANCE PROTECTED FOR INDOOR USE ONLY HEAT SOURCE (Lower Pipe) Part # TWHPROLAY Rev.3 Part # TWHPROLAY Rev.3 T/Stat 1 T/Stat 2 T/Stat 3 T/Stat 4 US Class F IMPEDANCE PROTECTED 99K4 P/N: 52722512 P1 PC: 0939 UL FOR INDOOR USE ONLY LISTED IMPEDANCE PROTECTED FOR INDOOR USE ONLY HEAT SOURCE (Lower Pipe) UL Max. water temp. 99K4 IP42 TF 95 Max. 1.0MPa 203°F C US LISTED FR |1/1 (A) Type UPS 26-99 BFC 115 V 1 PH 60 Hz 20 uF P/N: 97948357 PC: 1131HLK MAX. FlUID TEMP. 230˚F P 1 (W) 0.51 56 0.59 67 0.64 73 P 1 (w) 1.30 150 1.50 179 1.80 197 |1/1 (A) Type UPS 15-58 CIL2 115 V ~ 60 Hz 8 μF MECHANICAL ROOM IN A BOX FLOOR (Upper Pipe) ™ L6TWH000Z Heat Link ® www.heatlinkgroup.com Installation, Operation, and Maintenance TWH – Tankless Water Heater Panels with Zoning Table Of Contents Warnings.........................................................................................................................3 Tools Needed................................................................................................................3 Function..........................................................................................................................4 Unpacking......................................................................................................................4 Panel Components.....................................................................................................5 Specifications................................................................................................................6 Panel Component Specifications..........................................................................6-8 Valve Adjustments......................................................................................................8 Mounting.......................................................................................................................9 Piping Hookup.............................................................................................................10 Fill and Purge...............................................................................................................11 Panel Wiring..................................................................................................................12 Panel Control Sequence............................................................................................13 Troubleshooting..........................................................................................................14-15 Maintenance.................................................................................................................15 Application Drawings................................................................................................16-17 2 ® Heat Link www.heatlinkgroup.com Installation, Operation, and Maintenance TWH – Tankless Water Heater Panels with Zoning Warnings The zone control panel is for indoor use only and must be installed by a qualified installer/service technician. This product must be installed and operated in strict accordance with the terms set out in this manual and in accordance with the relevant requirements of the Local Authority Having Jurisdiction. Failure to comply will result in a void of warranty, and may also result in property damage, serious injury, or death. Servicing Prior to commencing installation of this panel it is necessary to read and understand all sections of this manual. The symbols below are used throughout this document to ensure proper operation of the panel, and your safety. Please pay attention to these symbols. Warning Possible Hazard Warning Live Power Warning Hot Pipes Warning Treated Water In order to avoid injury or death, switch off the power to the panel prior to inspecting or making connections to the terminal strip. Disclaimer HeatLink Group Inc. shall not be responsible for errors in its brochures or printed materials. HeatLink Group Inc. reserves the right to alter its products at any time without notice, provided that alterations to products already on order shall not require material changes in specifications previously agreed upon HeatLink Group Inc. and the Purchaser. All trademarks in this material are property of the respective companies. HeatLink and the HeatLink logotype are trademarks of HeatLink Group Inc. All rights reserved. Tools For Installation • Level • Screwdriver or power drill • Flat head bit • Phillips head bit # 2 • 2 adjustable wrenches (or 2× 30mm wrenches and 2× 40mm wrenches) 3 Heat Link ® www.heatlinkgroup.com Installation, Operation, and Maintenance TWH – Tankless Water Heater Panels with Zoning Function This panel can provide mixing, distribution, and zoning for a wide variety of hydronic heating applications. The effectiveness of the system is dependant on the system being designed and installed correctly. Proper consideration of factors such as BTU loads, outdoor design temperature, indoor design temperature, room set-point temperature(s), differential fluid temperatures, head loss, flow rates, and transfer capacities of the heat emitters is critical. Once these factors have been considered and the system requirements determined, these can then be evaluated and compared to the zone control panel capabilities (refer to pages 5-8). Note: This panel does not regulate or monitor the operating safety limit temperatures of the fluid leaving the heat source. Unpacking Step 1 Examine carton for any damage that may have occurred during shipping. If damage is visible notify your courier and supplier immediately. Step 2 Open the carton by removing the staples. Step 3 Remove the cardboard spacers from the carton, then remove the panel from the carton. Lift the panel by the base, not the enclosure. Step 4 There are 2 screws holding the enclosure in place during shipping. They are located at the top left & right of the panel base. Remove these 2 screws. Step 5 Remove the enclosure from the panel by sliding it upwards until it stops, then gently pulling outwards off. Side View Top Screws Step 6 4 Verify the following items: • (4) Mounting screws • (4) ¾" MBSP x 1" FPT adapters • (6) ¾" rubber washers (2 spares) • (2) 1" rubber washers (spares) • (1) 24 Vac Plug-in transformer Bottom ® Heat Link Installation, Operation, and Maintenance TWH – Tankless Water Heater Panels with Zoning www.heatlinkgroup.com Panel Components TWH070Z HeatLink Group Inc. 4603E - 13th Street NE Calgary, Alberta, Canada T2E 6M3 Phone: (403) 250-3432 Fax: (403) 250-1155 www.heatlinkgroup.com 3189472 L WARNING!!! Consult Manual Before Use AVERTISSEMENT!!! Consulter le manual avant l’usage N I1 Serial #: XXX-XXXX Phase/Freq: 1/60 Cycles Max Pres: 125psi/862kPa Max Temp: 100C/212F Volts: 120/24 VAC Amps: Maximum 15 I3 I4 I5 I6 I7 I8 I9 IA IB IC Inputs I1...IC 24VAC 24VAC MODEL #: TWH070P D.O.M: Feb 14, 2013 TWH070XPZ I2 HeatLink Group Inc. 4603E - 13th Street NE Calgary, Alberta, Canada T2E 6M3 Phone: (403) 250-3432 Fax: (403) 250-1155 www.heatlinkgroup.com 6 SR2 E201B Conforms to Std CAN/CSA C22.2 No. 14 Conforms to Standard UL 508 3189472 1 Q1 2 1 Q2 2 1 Q3 2 1 Q4 2 1 Q5 2 1 Q6 2 1 Q7 2 1 Q8 2 I2 I3 I4 I5 I6 I7 I8 I9 IA IB IC 6 SR2 E201B 1 IP42 TF 95 Max. 1.0MPa Max. water temp. 203°F 1 2 Q4 1 Q5 2 1 Q6 2 1 Q7 2 1 Q8 2 Zone 1 Zone 2 Zone 3 Zone 4 2 P 1 (w) 1.30 150 1.50 179 1.80 197 UL 99K4 C US LISTED MAX. FlUID TEMP. 230˚F 3 UL US Class F IMPEDANCE PROTECTED 99K4 5 P/N: 52722512 P1 PC: 0939 FOR INDOOR USE ONLY LISTED Type UPS 15-58 CIL2 115 V ~ 60 Hz 8 μF P 1 (W) 0.51 56 0.59 67 0.64 73 P/N: 97948357 PC: 1131HLK FR |1/1 (A) 1 FLOOR (Upper Pipe) 8 IP42 TF 95 Max. 1.0MPa 203°F Max. water temp. IMPEDANCE PROTECTED FOR INDOOR USE ONLY Part # TWHPROLAY Rev.3 IMPEDANCE PROTECTED FOR INDOOR USE ONLY 2 Flow Switch FR IP42 TF 95 Max. 1.0MPa 203°F Max. water temp. Q3 Zone 4 |1/1 (A) P 1 (W) 0.51 56 0.59 67 0.64 73 1 Aux Contacts P/N: 97948357 PC: 1131HLK |1/1 (A) 2 Zone 3 5 Type UPS 15-58 CIL2 115 V ~ 60 Hz 8 μF Q2 Zone 2 Type UPS 26-99 BFC 115 V 1 PH 60 Hz 20 uF 3 1 T/Stat 1 T/Stat 2 T/Stat 3 T/Stat 4 FR 2 Zone 1 T/Stat 1 T/Stat 2 T/Stat 3 T/Stat 4 P/N: 97948357 PC: 1131HLK Q1 7 4 Before servicing disconnect power supply. Flow Switch 1 Part # TWHPROLAY Rev.3 I1 Inputs I1...IC 24VAC CAUTION Aux Contacts HEAT SOURCE (Lower Pipe) N 24VAC U/Run CAUTION IMPEDANCE PROTECTED FOR INDOOR USE ONLY Max Temp: 100C/212F Amps: Maximum 15 Outputs Q1...Q8 : Relay 8A Before servicing disconnect power supply. P 1 (W) 0.51 56 0.59 67 0.64 73 Serial #: XXX-XXXX Phase/Freq: 1/60 Cycles Conforms to Std CAN/CSA C22.2 No. 14 Conforms to Standard UL 508 4 U/Run Outputs Q1...Q8 : Relay 8A |1/1 (A) AVERTISSEMENT!!! Consulter le manual avant l’usage Max Pres: 125psi/862kPa Volts: 120/24 VAC MADE IN CANADA MADE IN CANADA Type UPS 15-58 CIL2 115 V ~ 60 Hz 8 μF L WARNING!!! Consult Manual Before Use MODEL #: TWH070XP D.O.M: Feb 14, 2013 HEAT SOURCE (Lower Pipe) 1 Heat Link FLOOR (Upper Pipe) ® 9 Part Number # Component TWH070Z TWH070XPZ 1 Circulator Grundfos UPS15-58 RU PUMP1558 PUMP1558 2 Circulator Grundfos UPS26-99BFC n/a PUMP2699BR 3 Thermostatic Mixing Valve BRAVLV13WMXTH BRAVLV13WMXTH 4 PLC Control PB5 TWH070Z PB5 TWH070Z 5 Thermometer 76940 76940 6 24Vac 40VA Plug-in Transformer PLINTR40VA PLINTR40VA 7 Enclosure n/a n/a 8 Accessory Pack ACCTWH ACCTWH 3/4" Washer NTRWSH34 NTRWSH34 1" Washer NTRWSH1 NTRWSH1 FLWSWTCH FLWSWTCH 9 Flow Switch (Optional) 5 ® Heat Link www.heatlinkgroup.com Installation, Operation, and Maintenance TWH – Tankless Water Heater Panels with Zoning Specifications TWH070Z Listing Conforms to Dimensions Nominal panel output Primary nominal flow Primary nominal pressure drop outside of panel Secondary nominal flow Secondary nominal pressure drop outside of panel Max ambient temperature Max water temperature Min required flow for correct temp control Power supply: pre-wired on system controller Primary circulator Secondary circulator Auxiliary terminal Temperature control method Temperature control range Valve Cv Piping Piping connections Backplate Enclosure TWH070XPZ cETLus CAN/CSA-C22 No.14, UL508 18.25"H x 16.25"W x 8"D 70,000 btu/hr 70,000 btu/hr 4.0 US gpm @ 35°F ∆T 4.0 US gpm @ 35°F ∆T 14 ft 24 ft 7 US gpm @ 20°F ∆T 7 US gpm @ 20°F ∆T 4 ft 4 ft 120°F 200°F 1 US gpm 110 V(ac); max. current 2A Non-ferrous, Non-ferrous, Grundfos UPS15-58RU Grundfos UPS26-99BFC Non-ferrous, Non-ferrous, Grundfos UPS15-58RU Grundfos UPS15-58RU Yes, dry contacts, 1×2 terminal strip, screw type, max. load 1.5A 1" 3-Way thermostatic 100°F - 145°F 3.0 3/4" 304 Stainless steel tubing 1" FIP Galvanized steel Powder coated steel Panel Component Specifications L N I1 I2 I3 I4 I5 I6 I7 I8 I9 PLC Control Wiring Harness IA IB IC Inputs I1...IC 24VAC 24VAC SR2 E201B U/Run Outputs Q1...Q8 : Relay 8A 1 Q1 2 1 Q2 2 1 Q3 2 1 Q4 2 1 Q5 2 1 Q6 2 1 Q7 2 1 Q8 2 Aux Contacts Flow Switch Zone 1 Zone 2 Zone 3 Zone 4 T/Stat 1 T/Stat 2 T/Stat 3 T/Stat 4 6 This module provides the required power for all electronic components on the panel, via the 120V power cord. The PLC is powered by the included 24Vac Plug-in Transformer. Part may not be exactly as shown. Specifications: • Requires 115V power source (x2). • Requires a maximum 15A circuit breaker. Heat Link ® Installation, Operation, and Maintenance TWH – Tankless Water Heater Panels with Zoning www.heatlinkgroup.com Circulators The circulators moves the heated fluid through the hydronic system when there is a call for heat from the thermostat. Primary pump on the TWH070XPZ is a UPS26-99BFC. Specifications: • The following pump curves apply. UPS15-58RU Pump Curve 20 18 16 P 1 (w) .55 60 .66 80 .75 87 P/N: 59896341 P1 PC: 0315 US |1/1 (A) Class F IMPEDANCE PROTECTED 99K4 UL C US LISTED MAX. FlUID TEMP. 200˚F FOR INDOOR USE ONLY LISTED UL 12 10 8 99K4 6 4 2 0 0 2 4 6 8 10 12 14 16 Flow (gpm) 1st Speed 2nd Speed 3rd Speed UPS26-99BFC Pump Curve 35 30 25 Type UPS 26-99 FC 115 V 1 PH 60 Hz 20 uF P 1 (w) 1.30 150 1.50 179 1.80 197 P/N: 52722512 P1 PC: 0939 US |1/1 (A) Class F IMPEDANCE PROTECTED 99K4 UL C US LISTED MAX. FlUID TEMP. 230˚F FOR INDOOR USE ONLY U LISTED L Head (feet) Type UPS 15-58 FC 115 V 1 PH 60 Hz 10 uF Head (feet) 14 20 15 99K4 10 5 0 0 5 10 15 20 25 30 35 Flow (gpm) 1st Speed 2nd Speed 3rd Speed 7 ® Heat Link Installation, Operation, and Maintenance TWH – Tankless Water Heater Panels with Zoning www.heatlinkgroup.com 3-Way Thermostatic Mixing Valve (TMV) The TMV controls the temperature of the hydronic system via a self regulating thermostat. Indicator on back 2 1 MIN MAX 7 Setting the TMV The indicator for the valve is located at the base of the knob on the back. The mixed (desired) temperature is a function of the TMV setting. See the below chart to determine the proper setting for you system. After allowing the system to run for a short period, verify the setting and adjust if necessary. MIX Unit Mixed Fluid Temperature Min. 1 2 3 4 5 6 7 Max. °F 81 90 100 111 120 127 136 145 152 °C 27 32 38 44 49 53 58 63 67 Thermometer (76940) The pipe mounted thermometer reads the supply fluid temperature. Specifications: • Temperature range of 32-210°F (0-100°C). Flow Switch (FLWSWTCH) The flow switch is installed in the DHW supply to the house downstream from the branch to the panel. When the flow switch detects water flow, it will turn off the primary pump in the panel, until such time that the DHW flow to the house falls below ~0.5 US gpm. 8 Heat Link www.heatlinkgroup.com ® Installation, Operation, and Maintenance TWH – Tankless Water Heater Panels with Zoning Mounting Wall Stud Prior to mounting the panel, ensure the wall is capable of supporting the weight of the panel. Ensure that a 115V receptacle is within reach of the 6-foot cord and plug and 24V plug-in transformer. Determine the locations and distance between the wall studs. With a level at a minimum height of 4' from the floor draw a straight line on the wall and mark the stud locations. If the panel cannot be secured directly to the studs, or suitable backing boards, plywood may need to be installed behind the panel to properly secure it in place. Step 2 Screw two of the supplied mounting screws into the wall studs (or backing plywood) 2" from the top of desired height, and 10-½" apart, leaving ¼" of screw out from the wall. Step 3 Lift and place the panel onto the mounting screws. Step 4 Screw the two remaining mounting screws into the holes at the bottom of the panel and tighten the top two screws. Step 5 Before replacing the enclosure, refer to pages 10-12 for fill and purge, and proper wiring instructions. min. 4' from floor 1⁄ 2" 4" 10-½" HeatLink Group Inc. 4603E - 13th Street NE Calgary, Alberta, Canada T2E 6M3 Phone: (403) 250-3432 Fax: (403) 250-1155 www.heatlinkgroup.com 3189472 L WARNING!!! Consult Manual Before Use AVERTISSEMENT!!! Consulter le manual avant l’usage MODEL #: TWH070P Serial #: XXX-XXXX D.O.M: Feb 14, 2013 Phase/Freq: 1/60 Cycles Max Pres: 125psi/862kPa Max Temp: 100C/212F Volts: 120/24 VAC Amps: Maximum 15 N I1 I2 I3 I4 I5 I6 I7 I8 I9 IA IB IC Inputs I1...IC 24VAC 24VAC SR2 E201B Conforms to Std CAN/CSA C22.2 No. 14 Conforms to Standard UL 508 MADE IN CANADA U/Run Outputs Q1...Q8 : Relay 8A 1 Q1 2 1 Q2 2 1 Q3 2 1 Q4 2 1 Q5 2 1 Q6 2 1 Q7 2 1 CAUTION Q8 2 Aux Contacts Before servicing disconnect power supply. Flow Switch Zone 1 Zone 2 Zone 3 Zone 4 P 1 (W) 0.51 56 0.59 67 0.64 73 T/Stat 1 T/Stat 2 T/Stat 3 T/Stat 4 Type UPS 15-58 CIL2 115 V ~ 60 Hz 8 μF P/N: 97948357 PC: 1131HLK FR |1/1 (A) IP42 TF 95 Max. 1.0MPa 203°F Max. water temp. IMPEDANCE PROTECTED FOR INDOOR USE ONLY Type UPS 15-58 CIL2 115 V ~ 60 Hz 8 μF P 1 (W) 0.51 56 0.59 67 0.64 73 P/N: 97948357 PC: 1131HLK FR |1/1 (A) IP42 TF 95 Max. 1.0MPa 203°F Max. water temp. IMPEDANCE PROTECTED FOR INDOOR USE ONLY Part # TWHPROLAY Rev.3 Step 1 HEAT SOURCE (Lower Pipe) FLOOR (Upper Pipe) 9 Heat Link www.heatlinkgroup.com ® Installation, Operation, and Maintenance TWH – Tankless Water Heater Panels with Zoning Piping Hookup Step 1 Step 2 Before making any connections, identify the required connections to and from the panel. Adapters are ¾" M BSPP x 1" FPT, and must use the supplied adapters and rubber washers. Connect all adapters. 1. Connect MPT adapter E to copper pipe or tubing F . 2. Screw supplied M x FPT adapter D onto E using appropriate thread sealant. 3. Take assembly D E F and place rubber washer C on flat surface of D . 4. Without disturbing rubber washer C , place assembly against flanged stainless steel pipe B . 5. Slide nut A over adapter D and first finger tighten nut. Then, using two 30mm wrenches, tighten the nut taking care not to overtighten the nut, as this will damage the rubber washer. 4 1 2 1 Primary Supply 2 Primary Return 3 Secondary Supply 4 Secondary Return 3 A C B D E F Note: Use precautions when soldering or applying heat within 16" of the panel. 10 Do not overtighten brass nuts! Heat Link ® Installation, Operation, and Maintenance TWH – Tankless Water Heater Panels with Zoning www.heatlinkgroup.com Fill And Purge The following steps are recommended in order to fill the panel with water and purge entrained air once piping is completed, and before activation of the panel. The discharged system fluid from the fill and purge process is not for consumption or washing. Note: Additional purging steps may be required for the rest of the hydronic system. Note: Isolation and drain valves are not included with the panel, but are necessary to properly fill and purge the panel, and to isolate the panel for service. Step 1 Ensure the panel is not plugged in. Step 2 Adjust the thermostatic mixing valve to a position of four (see page 8). Step 3 Fully close valves A , Fully open valve E . Step 4 Attach a purge hose (not included) to E and a fill hose (not included) to F . Open valve F . Step 5 When exiting water from valve E , then valve F . Step 6 Remove hoses from drain valves and full open valves A , B , C , and D . Step 7 Check for leaks at connections. If any leaks are found, use a back-up wrench and carefully tighten until leak stops. Do not overtighten. Step 8 Readjust the setting of the thermostatic mixing valve to provide a proper mixed fluid temperature to the hydronic system (see page 8). B , C E , D ,and E F A F B C D . is free of bubbles, close 11 Heat Link ® www.heatlinkgroup.com Installation, Operation, and Maintenance TWH – Tankless Water Heater Panels with Zoning Panel Wiring Note: Terminal headers are removable to make wiring connections easier. Thermostat Wiring • 24V low voltage power may be supplied to the thermostat. Wiring of thermostat should be done by qualified electrician and should meet local codes and jurisdictions. Wiring to the terminal strip requires 18 gauge 4 wire. 2-Wire Thermostat (battery only or non-electric) Signal C AUX 3-Wire Thermostat (HeatLink thermostats) Jumper to Dry Contact W R 24 V AUX 24 V C 24 V W R 24 V Signal 24 V Signal • Do not exceed 2VA per thermostat. • Do not cross terminals C and R – this will damage the Power Box. W R C AUX 4-Wire Thermostat (with dry contact signal) 24Vac Plug-in Transformer Attach the 24V plug-in transformer to the wiring harness using the two prong Molex plug. Other Terminals Auxiliary Contacts The auxiliary contact set is dry, meaning no supply of power is present at the terminal. The maximum allowable load is 1.5A. The auxiliary dry contact located on the terminal is to switch another device (ie. the heat source) when there is a call for heat from any zone. Actuator Contacts There are 4 sets of actuator contacts, each corresponding to a zone thermostat. The maximum allowable load is 0.4 Amps (10 VA). Maximum 3 actuators/zone. Maximum 8 actuators total. 12 Heat Link ® Installation, Operation, and Maintenance TWH – Tankless Water Heater Panels with Zoning www.heatlinkgroup.com Panel Control Sequence 1. When the power cord from the PLC 1 is plugged in, and the 24Vac Plug-in Transformer Green LED is flashing on the PLC, indicating that the panel is powered. 2 is plugged in, the 2. When the thermostat calls for heat, its internal 24V contacts close, the auxiliary terminals close, and the pumps turn on. 4. As the circulators 3 move fluid through the panel the thermostatic mixing valve adjusts the fluid temperature based on the user settings (page 6). 5. When the requirements of the thermostat are met, the internal contacts of the thermostat open, the auxiliary contacts open, and the circulator stops. 6. The circulator is activated once every 24 hours, for 15 minutes, to ensure that potable water in the piping is not stagnant. Note: The TWH070PS and TWH070XPS are equipped with Domestic Hot Water priority. When a DHW flow above the minimum flow setting is detected by the Electronic Flow Indicator, the primary pump circuit is interrupted. When the DHW flow falls below the minimum factory setting (0.7 GPM) the panel will return to normal operation. RevNo Revision note Date Signature 2 R Primary Pump WH L N I1 24VAC I2 I3 I4 I5 I6 I7 I8 I9 IA Checked Primary Ground IB IC Inputs I1....I8 24VAC SCHNEIDER Secondary Pump SEC PUMP Q1 Q2 Q3 Q4 Q5 ZV 2 ZV 3 ZV 4 Q6 Q7 Q8 BK BK BK 2 WH BRN WH Y Plug In Transformer R Y 40 VA SWITCH ZONE 1 BL FLOW BL ZONE 2 ZONE 4 BL BRN W R T/STAT 1 C W R T/STAT 2 C W R T/STAT 3 W C R T/STAT 4 C BL BRN ZONE 3 BRN AUX BK AUX CONTACTS ZV 1 1 CONTACTS VIO VIO VIO VIO PRIM PUMP U/RUN Heatlink can accept no responsibility for possible errors in printed matter and reserves the right to alter its products without notice. Confidential: Property of ZCP Inc., Calgary, AB, Canada. Not to be handed over to, copied or used by third party. TITLE: JOB/PROJECT: CLIENT/DISTRB.: ENGIN./ARCH. CONTRACTOR: CLIENT/DISTRB ORDER No.: Residential Control Panel Electrical Layout North America, Heatlink Distribution Network Designed by BW Checked by BW ZELIO TWH070Z VC.A01.A1.02 Approved by: Filename D:\..panel prog\zcp dr\wiring Date 12.09.16 Scale None Electrical Wiring Drawing Dwg #: TWH070Z Flow Switch Edition Sheet 1 of 1 13 Heat Link www.heatlinkgroup.com ® Installation, Operation, and Maintenance TWH – Tankless Water Heater Panels with Zoning Troubleshooting Problem Check / Verify Possible Cause Low Temperature Within Room Misplacement of thermostat location within room. Make sure thermostat is not being influenced by an additional heat source, such as lighting or air duct. Low temperature setting of the thermostat. Adjust the temperature setting on thermostat. The system fails to turn on if the thermostat is set to high setting Thermostat may be out of calibration or defective. Replace thermostat. The electronic actuator fails to open during a call for heat The electronic actuator may be improperly seated or may be defective. Replace if necessary. Low supply mixed fluid temperature. Adjust the thermostatic mixing valve to the appropriate setting. Wiring from heat source to panel. Check that the wiring is done properly. Consult qualified electrician prior to alteration of wiring between heat source and panel. Output of heat source is unable to meet demand of heating system. Compare output of heat source to the requirements of the heating system. No green LED on PLC. No 24V supply to the PLC control. Check plug-in transformer for power. Circulator is not on during a call for heat. (Use a stethoscope or similar device to verify) The power box or circulator may be defective. When zone valves are installed outside the panel a qualified electrician should verify 24V power is supplied to the thermostats and actuator. The 24V transformer may have failed. If this so, switch the power module to Bypass mode. This will provide constant circulation so long as there is still 110V power to the panel. Prior to Bypass mode selection, any zone valves must be opened manually to avoid deadheading of the circulator. Check current setting of the thermostat. Adjust the temperature setting on thermostat to a lower setting. High supply mixed fluid temperature. Adjust the Thermostatic Mixing Valve to the appropriate settings. Installed electronic actuators remain open after the thermostat is satisfied. An obstruction inside the zone valve is not allowing the actuator to fully close or the thermostat is still calling for heat. Bypass switch(es) may be on. Check that the Bypass switches on the power box are in the BY-PASS (OFF) position. High Temperature Within Room 14 Heat Link ® Installation, Operation, and Maintenance TWH – Tankless Water Heater Panels with Zoning www.heatlinkgroup.com Troubleshooting (continued) Temporarily create a “permanent” heat demand: RevNo Revision note Date Signature R Primary Pump WH L N I1 24VAC I2 I3 I4 I5 I6 I7 I8 I9 IA Primary Ground IB IC Checked Inputs I1....I8 24VAC SCHNEIDER Secondary Pump SEC PUMP Q1 Q2 Q3 Q4 Q5 ZV 2 ZV 3 ZV 4 Q6 Q7 Q8 BK BK BK WH BRN WH Y Plug In Transformer R Y 40 VA Install Jumper between run SWITCH ZONE 1 BL FLOW BL ZONE 2 ZONE 4 BL BRN W R T/STAT 1 C W R T/STAT 2 C W R T/STAT 3 W C R T/STAT 4 C BL BRN ZONE 3 BRN AUX BK AUX CONTACTS ZV 1 CONTACTS VIO VIO VIO VIO PRIM PUMP U/RUN Heatlink can accept no responsibility for possible errors in printed matter and reserves the right to alter its products without notice. Confidential: Property of ZCP Inc., Calgary, AB, Canada. Not to be handed over to, copied or used by third party. Maintenance TITLE: JOB/PROJECT: CLIENT/DISTRB.: ENGIN./ARCH. CONTRACTOR: CLIENT/DISTRB ORDER No.: W & R - pump will Residential Control Panel Electrical Layout North America, Heatlink Distribution Network Designed by BW Checked by BW ZELIO TWH070Z VC.A01.A1.02 Approved by: Filename D:\..panel prog\zcp dr\wiring Date 12.09.16 Scale None Electrical Wiring Drawing Dwg #: TWH070Z Flow Switch Edition Sheet 1 of 1 Yearly maintenance should be done on the panel prior to each heating season to ensure the efficient and accurate operation of the panel. Complete the following check list: • Raise all thermostats to cause a call for heat within the system. Verify that the circulator starts, via a stethoscope or similar device. • Confirm that the Auxiliary Contacts close. • If applicable, verify that each zone valve opens during the call for heat – the actuator should be warm to the touch, the LED will light up (on 5620x models) and the white indicator should rise from the top of the actuator. • Return all thermostats to a desirable setting. You are now ready for another heating season with HeatLink. 15 Heat Link www.heatlinkgroup.com ® Installation, Operation, and Maintenance TWH – Tankless Water Heater Panels with Zoning TWH 70 MBH Tankless Water Heater Mixing Panel with Zoning The flow switch must be installed on the DHW supply to the house after the take off to the panel. See diagram below for example. 180 DHW Supply to House Cold Water Supply Flow Switch Room Thermostats Manifold #1 Zones #1-4 Notes: A) Check local codes for permissible heat source. Heat sources rated as DHW cannot be used for heating only. B) Secondary zoning with a DHW heat source is possilbe. Check local codes for permissible zoning. C) This drawing is for illustrative purposes only. It is not intended to be used as a wiring or piping diagram. Not required components are shown. jurisdiction. Note: Thisall drawing is for illustrative purposes only.Local It is codes, regulations, and authorities have final Prepared for: Website: www.zcpinc.com not intended to be used as a wiring or piping diagram. Phone: (403) 250-9151 Not all required components are shown. Local codes, E-Mail: [email protected] regulations, and authorities have final jurisdiction. 16 Prepared by: Brian Wheeldon Reference: TWH040 www.heatlinkgroup.com 1-866-661-5332 Notes: Drawings are for HeatLink suggested system layout only! User must determine if system layout will work for their particular application. Air vents, expansion tanks, pressure relief valves, etc. for heat source as per local codes. Use isolation ball valves for all circuits and components. Local codes, regulations, and authorities have final jurisdiction. Heat Source Check Valve in Primary Pump Date: 2013-05-22 Heat Source: Generic Panel(s): TWHZ Series Heat Load(s): Generic – Up to 4 Zones TWH070Z/ TWH070XPZ Panel DHW Supply to House Wiring detail see: SCH-TWHZ-E001 Rough-in wiring see: SCH-MRIB-R006 Schematic #: SCH-TWHZ-M001 Heating Load Up to 4 Zones 180 Check Valve in Primary Pump Notes: Drawings are for HeatLink suggested system layout only! User must determine if system layout will work for their particular application. Air vents, expansion tanks, pressure relief valves, etc. for heat source as per local codes. Use isolation ball valves for all circuits and components. Local codes, regulations, and authorities have final jurisdiction. Cold Water Supply www.heatlinkgroup.com 1-866-661-5332 T TWH070Z/ TWH070XPZ Panel T DHW Supply to House Heat Source: Tankless Water Heater Panel(s): TWHZ Series Heat Load(s): Radiant Floor Heating – Up to 4 Zones Date: 2013-05-22 Up to 4 Thermostats Radiant Heating Manifold Schematic #: SCH-TWHZ-M002 Rough-in wiring see: SCH-MRIB-R006 Wiring detail see: SCH-TWHZ-E001 www.heatlinkgroup.com 1-866-661-5332 Cold Water Supply 180 Check Valve in Pump R1 Storage Tank Notes: Drawings are for HeatLink suggested system layout only! User must determine if system layout will work for their particular application. Air vents, expansion tanks, pressure relief valves, etc. for heat source as per local codes. Use isolation ball valves for all circuits and components. Local codes, regulations, and authorities have final jurisdiction. P3 T T TWH070Z/ TWH070XPZ Panel Date: 2013-05-22 Heat Source: Tankless Water Heater with Storage Tank Panel(s): TWHZ Series Heat Load(s): Radiant Heating – Up to 4 Zones Check Valve in Primary Pump Wiring detail see: SCH-TWHZ-E002 Rough-in wiring see: SCH-MRIB-R006 Schematic #: SCH-TWHZ-M003 DHW Supply to House Radiant Heating Manifold Up to 4 Thermostats Heat Link www.heatlinkgroup.com 20 ® Installation, Operation, and Maintenance TWH – Tankless Water Heater Panels with Zoning Heat Link www.heatlinkgroup.com ® Installation, Operation, and Maintenance TWH – Tankless Water Heater Panels with Zoning 21 Canada Manufactured & distributed by HeatLink Group Inc. Head Office: 4603E - 13th Street N.E. Calgary, Alberta, T2E 6M3 Toll Free: 1-800-661-5332 International Phone: +1 (403) 250-3432 Fax: 1-866-450-1155 China Distributed by Cathay-Links International Phone: 852-25693213 Fax: 852-25359271 Ireland Distributed by Jamoni Ltd. Phone: 057 - 932 4062 Fax: 057 - 932 4063 Freephone: 1800-311338 México Distributed by Distribuidora Caisa S.A. de C.V. Phone: (52-55) 3300-4400 Fax: (52-55) 3300-4406 United States Distributed by HeatLink Group Inc. USA Distribution Center: 1000 - 100th Street SW, Suite B Byron Center, MI, 49315 Toll Free: 1-800-661-5332 Fax: 1-800-869-6098 [email protected] www.heatlink.com HeatLink, the HeatLink logo, and “Mechanical Room in a Box” logo are either registered trademarks or trademarks of HeatLink Group Inc. September 13, 2016 Printed in Canada © HeatLink Group Inc.