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lp-770 Rev. 000 Rel. 000 Date 6.21.21

13

Part 4 - Heater Control and Wiring

C. Wiring Diagrams

Figure 6 - Tankless Coil Boiler Application - Wiring with Circulators

Figure 7 - Tankless Coil Boiler Application - Wiring with Zone Valves

A. Control

Install control element into the control well and tighten into place with screws on the control body. Thermal conductive paste is recommended. 

Once the control is operational, it is important to make sure the control is maintaining the desired operating temperature.

B. Wiring

Wiring is to be done in accordance with all applicable local and state codes. Turn off all power related to the boiler before starting any wiring 

procedures.It is recommended that a disconnect switch be installed between the boiler control and the water heater.

CAUTION

When wiring the water heater and controls be sure to label all wires to ease future maintenance. Wiring errors can cause improper and 

dangerous operation.

Содержание SSC-20TC

Страница 1: ... 02745 www htproducts com lp 770 Rev 000 Rel 000 Date 6 21 21 NOTICE HTP reserves the right to make product changes or updates without notice and will not be held liable for typographical errors in literature NOTE TO CONSUMER PLEASE KEEP ALL INSTRUCTIONS FOR FUTURE REFERENCE WARNING Improper installation adjustment alteration service or maintenance could void product warranty and cause property da...

Страница 2: ...ment installations the commanding officer or departmental official may be the AHJ NOTE Themanufacturerreservestherighttomodifyproducttechnical specifications and components without prior notice For the Installer This water heater must be installed by qualified and licensed personnel The installer should be guided by the instructions furnished with the water heater and by local codes and utility co...

Страница 3: ... heater DO NOT allow children to operate this unit DO NOT use this unit if it does not appear to be operating correctly A qualified technician should service and inspect the water heater annually This water heater must be installed by a licensed plumber licensed gasfitter and orprofessionalservicetechnician Improperinstallation and or operation can cause a potentially hazardous situation which if ...

Страница 4: ... to treat the water Various solutions are available to adjust water quality Adverse water quality will affect the reliability of the system In addition operating temperatures above 135o F will accelerate the build up of lime scale and possibly shorten appliance service life Failure of an appliance due to lime scale build up low pH or other chemical imbalance IS NOT covered by the warranty The wate...

Страница 5: ...ation company by the consignee Carefully consider installation when determining heater location Please read the entire manual before attempting installation Failure to properly take factors such as heater venting piping condensate removal and wiring into account before installation could result in wasted time money and possible property damage and personal injury This water heater is certified for...

Страница 6: ... where it will not be exposed to freezing temperatures All piping should be insulated Additionally place the water heater so that the drain controls and inlets outlets are easily accessible NOTE To save on heating costs and improve energy efficiency keep the distance between the boiler and water heater to a minimum to reduce heat loss from excess piping and keep friction loss at a minimum Ensure a...

Страница 7: ...mpoo 4 X Hand Dish Washing 4 X Automatic Dish Washing 14 X Food Preparation 5 X Wringer Clothes Washer 26 X Automatic Clothes Washer 32 X Total Peak Hour Demand Table 3 Water Heater Performance and Sizing Guidelines Model Units 20 32 40 50 Tank Capacity Gallons 21 2 31 7 42 3 52 9 Minimum Recommended Power BTU Hr 75 000 95 000 115 000 140 000 Maximum Working Pressure PSI 150 Maximum Temperature oF...

Страница 8: ...nection Diagrams Figure 3 Dimensions Model SSC 20TC SSC 32TC SSC 40TC SSC 50TC A 22 B 28 7 37 45 3 54 C 27 35 3 43 6 52 25 Table 4 Dimensions 2 0 4 0 6 0 8 0 10 0 5 GPM 8 GPM 12 GPM Primary Flow Rate Head Loss FT HD PressureDrop Graph 20 32 40 50 50 32 40 20 Figure 4 Pressure Drop Graph Model Primary Flow Rate GPM Unit 5 8 12 SSC 20TC 1 2 2 9 6 2 ft hd SSC 32TC 1 6 3 8 8 0 SSC 40TC 3 6 7 6 SSC 50T...

Страница 9: ...0 000 188 134 219 155 165 000 236 167 Table 7 32 Gallon Model Performance Data Continuous Draw Ratings Based Upon Boiler s Ability to Maintain 180oF Model 40 Gallon Circulator Flow GPM 5 5 8 8 12 12 DHW Temperature 120oF 140oF 120oF 140oF 120oF 140oF Boiler Heating Capacity in BTU Hr Output 45 000 110 82 110 82 60 000 138 101 138 101 75 000 166 120 166 120 95 000 172 124 192 138 202 145 115 000 17...

Страница 10: ...ergy efficiency and reduce piping heat loss All plumbing must be in accordance with the requirements of the authority having jurisdiction Use both thread tape and pipe dope on all mechanical con nections Zone valve if used and circulator must be sized to provide minimum flow rate specified in the table to the right Flow Specifications Use 1 inch nominal copper tubing for flows greater than 7 GPM b...

Страница 11: ...e discharge to any location where freezing could occur No valve may be installed between the relief valve and heater or in the discharge line Do not plug or place any obstruction in the discharge line Test the operation of the relief valve after filling and pressurizing the system by lifting the lever Make sure the valve discharges freely If the valve fails to operate correctly immediately replace...

Страница 12: ...ir from system 5 This drawing is meant to demonstrate system piping only The installer is responsible for all equipment and detailing required by local codes In Massachusetts you must install a vacuum relief valve per 248 CMR 6 Mixing valve application is optional but recommended to help prevent scalding A B C D E F G H Legend A Ball Valve Typical B Dielectric Union Suggested C Temperature Pressur...

Страница 13: ...d Once the control is operational it is important to make sure the control is maintaining the desired operating temperature B Wiring Wiring is to be done in accordance with all applicable local and state codes Turn off all power related to the boiler before starting any wiring procedures It is recommended that a disconnect switch be installed between the boiler control and the water heater CAUTION...

Страница 14: ...l 000 Date 6 21 21 14 Figure 8 Zoning with Circulators R8182D and R845A Relay Figure 9 Zoning with Circulators Using L8124 E F and R845A Relay Figure 10 Using L8148A or L8152A Cold Start Boiler Control with Circulators ...

Страница 15: ...a thermostatic mixing valve be used to protect the user from potential hazard due to spikes in temperature A mixing valve in conjunction with a high temperature setting may be used for high demand applications spas hot tubs whirlpools It is important to check the output temperature of any water heater with a thermometer to insure that the setting is correct 6 When the system is completely flushed ...

Страница 16: ...omestic cold water supply valve 3 Open the household hot water taps 4 Attach a hose to the drain valve located at the bottom of the heater and drain the heater 5 Unscrew the anodes EXAMINE THE ANODES AND REPLACE IF THE DIAMETER IS LESS THAN 0 40 INCHES 6 Replacement of the Anodes The use of PTFE tape is recommended to ensure watertight connection of the anodes NOTE Some water conditions may necess...

Страница 17: ...ischarges Hot Tubs Spas Multiple Showers High Demand Problem Possible Solution Problem Possible Solution Tank temperature too high Lower tank temperature Pressure too low Check line pressure for restriction Water expands when heated Install expansion tank Tank recovery slow Slow startup boiler See chart Water pressure too high Install pressure reducing valve Not enough hot water Boiler sized too s...

Страница 18: ...pressly agreed between HTP and the Owner that repair replacement or refund are the exclusive remedies of the Owner OWNER RESPONSIBILITIES The Owner or Installer must 1 Have a relief valve bearing the listing marks of the American Society of Mechanical Engineers ASME installed with the water heater assembly in accordance with federal state and local codes 2 Have a vacuum relief valve certified to A...

Страница 19: ...on is required and requested by the HTP Claims Departmentyouwillhavethirty 30 daystoprovideit Whenallrequested information is provided HTP will respond within three 3 business days The claim will be automatically closed if requested information is not provided within thirty 30 days Claims will not be reopened without HTP Warranty Supervisor approval During the claims process a product that must be...

Страница 20: ...te of Installation Installation Address Product Name Serial Number s Comments Installer s Code Name Installers Phone Number Signed by Installer Signed by Customer IMPORTANT Customer Please only sign after the qualified installer service technician has fully reviewed the installation safety proper operation and maintenance of the system If the system has any problems please call the qualified insta...

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