HTP SUPER-STOR ULTRA SSU-20 User Manual

RESIDENTIAL COMMERCIAL
HEAT TRANSFER PRODUCTS
INDIRECT FIRED WATER HEATERS
Heat Transfer Products, Inc., reserves the right to make product changes or updates without notice.
Heat Transfer Products will not be held liable for typographical errors in literature. For questions, please consult the factory.

HTP SUPER-STOR ULTRA SSU-20 Specifications

General

Brand	HTP
Model	SUPER-STOR ULTRA SSU-20
Category	Water Heater
Language	English

Summary

INDIRECT FIRED WATER HEATERS

USING THIS MANUAL

INSTALLATION SEQUENCE

Follow installation instructions in order for safety and to minimize interferences.

SPECIAL ATTENTION BOXES

Boxes supplementing instructions, highlighting potential hazards as defined by ANSI Z535.A Standard.

SPECIFICATIONS AND PERFORMANCE RATINGS

ULTRA RESIDENTIAL SERIES

Detailed specifications and performance ratings for the Ultra Residential Series models.

ULTRA COMMERCIAL SERIES SPECIFICATIONS

CONTINUOUS FLOW PERFORMANCE CALCULATION

REDUCED BOILER INPUT SIZING GUIDE

PERFORMANCE AND SIZING GUIDELINES

COLD START BOILERS

LOCATION AND OPERATION

OPERATING YOUR SUPER STOR ULTRA

Instructions for setting boiler controls and water temperature for optimal operation.

PLUMBING

PLUMBING CONNECTIONS

BOILER CONNECTIONS

PLUMBING AND WIRING

CONTROL AND WIRING DETAILS

WIRING DIAGRAMS

ZONING WITH CIRCULATORS AND R845 RELAY

Wiring diagram for zoning with circulators using R845 relay.

ZONING WITH CIRCULATORS USING R8182D AND D.P.S.T.

Wiring diagram for zoning with circulators using R8182D and D.P.S.T. with no relay.

ELECTRICAL WIRING SCHEMATICS

ZONING WITH CIRCULATORS USING L8124 E,F AND D.P.S.T. CONTROL

Wiring diagram for zoning with circulators using L8124 E,F and D.P.S.T. control.

ADVANCED WIRING DIAGRAMS

ZONING WITH CIRCULATORS USING R182D AND R845A RELAY

CONTROL WITH BUILT-IN IDPST SWITCH

ZONING CONTROL WIRING

ZONING WITH CIRCULATORS USING L8124 A, C AND R845A RELAY

Wiring diagram for zoning with circulators using L8124 A, C and R845A relay.

ZONING WITH CIRCULATORS USING L8124 A,C AND D.P.S.T.

BOILER CONTROL WIRING

USING L8148A OR L8152A COLD START BOILER CONTROL WITH CIRCULATORS

PRIORITY ZONE WITH CIRCULATORS

ZONING CONTROL WIRING SCHEMES

USING L8148A OR L8152A COLD START BOILER CONTROL WITH ZONE VALVES

PRIORITY ZONE WITH ZONE VALVES

TROUBLESHOOTING

NO HOT WATER ISSUES

Common problems and solutions for lack of hot water.

INSUFFICIENT HOT WATER

Troubleshooting steps for not enough hot water or slow recovery.

T & P VALVE DISCHARGES

Causes and solutions for temperature and pressure relief valve discharges.

TROUBLESHOOTING HIGH DEMAND

HOT TUBS, SPAS, AND HIGH DEMAND

Troubleshooting for high demand applications like hot tubs and spas.