5.3102.22 Steam to Domestic Hot Water Heat Exchanger (Steam)

Topic: 
Hydronic Heating (Hot Water and Steam)
Subtopic: 
Equipment Installation
Desired Outcome: 
Increased efficiency of domestic hot water production
TitleSpecification(s)Objective(s)
5.3102.22a
Assessment

Assessment will be conducted to determine whether alternative options for providing domestic hot water exist, such as:

  • Separate direct-fired unit (SWS 7.8102.4 Storage Tank-Type Water Heater)
  • Boiler with indirect water heater (SWS 5.3102.10 Installation of Combined Heat and Domestic Hot Water System (Hot Water))

Ensure optimal system is applied
5.3102.22b
Replacement

Selected heat exchanger will be of a higher efficiency/effectiveness

Internal leaks will be checked by a contractor before new unit is put into service

Isolation valves will be installed for proper servicing

Gauges and insulation will be installed and functioning

Increase efficiency

Ensure supply of safe domestic hot water by eliminating cross contamination

Ensure ease of access, operation and maintenance
5.3102.22c
Testing

Domestic hot water production, distribution system, and delivery temperature will be tested for proper and safe operation

Ensure system operates safely and efficiently
5.3102.22d
Control recalibration

If alternative, stand-alone domestic hot water production system is selected, burner controls will be adjusted to address remaining heating load

Ensure heating system is optimized
5.3102.22e
Education

Property manager will be educated on proper operation and maintenance of heat exchanger

Maintain optimal performance