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HEAT-TIMER® Save Energy while improving comfort in Multi Family Buildings

Heat-Timer: Save Energy While Improving Comfort in ... · HSS Temperature Greater Than 150°F Heat-Off HSS Temperature Begins to Fall 60 Minute Cycle Heat-Off Thermal Lockout Active

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Page 1: Heat-Timer: Save Energy While Improving Comfort in ... · HSS Temperature Greater Than 150°F Heat-Off HSS Temperature Begins to Fall 60 Minute Cycle Heat-Off Thermal Lockout Active

HEAT-TIMER® Save Energy while

improving comfort in Multi Family Buildings

Page 2: Heat-Timer: Save Energy While Improving Comfort in ... · HSS Temperature Greater Than 150°F Heat-Off HSS Temperature Begins to Fall 60 Minute Cycle Heat-Off Thermal Lockout Active

Objectives • Proper control methods for Steam

heat and hot water heat • Basic multiple boiler control options • Using Communication Options to

save energy. Both on direct fuel usage and through information to better maintain equipment.

Page 3: Heat-Timer: Save Energy While Improving Comfort in ... · HSS Temperature Greater Than 150°F Heat-Off HSS Temperature Begins to Fall 60 Minute Cycle Heat-Off Thermal Lockout Active

In heating: What can we control ? • Flow (On Off)

– Steam System: steam temperature (non vacuum) remains relatively constant.

• Control the flow of steam based on outdoor air

• Temperature of heating medium – Hydronic system: Water is easily controllable and

we can do this in numerous ways based on system and boilers being used .

• Vary the water temperature to the radiators based on outdoor air.

Page 4: Heat-Timer: Save Energy While Improving Comfort in ... · HSS Temperature Greater Than 150°F Heat-Off HSS Temperature Begins to Fall 60 Minute Cycle Heat-Off Thermal Lockout Active

Heat-On

Heating SystemSensor (HSS)

Reaches150 Degrees

HSS TemperatureGreater Than

150°F

Heat-Off

HSSTemperatureBegins to Fall

60 Minute Cycle

Heat-Off

Thermal Lockout Active

Heat-On

HSSTemperature

Continues to FallBelow 150°F

HSS Falls Below125 °F

Differential)

EstablishingHeat

EstablishingHeat

Steam Cycle Concept Thermal Lockout and Differential

EXAMPLEHeating System Sensor Adjustment (XYZ) 150°Heating System Sensor Differential -25°Thermal Lockout ONCycle Minutes 60

Page 5: Heat-Timer: Save Energy While Improving Comfort in ... · HSS Temperature Greater Than 150°F Heat-Off HSS Temperature Begins to Fall 60 Minute Cycle Heat-Off Thermal Lockout Active

Hot Water Reset

• Varies the system water temperature based on outdoor air – I.e: Water sent to radiation

increases as it gets colder outside

• Does NOT turn pump off and on

Page 6: Heat-Timer: Save Energy While Improving Comfort in ... · HSS Temperature Greater Than 150°F Heat-Off HSS Temperature Begins to Fall 60 Minute Cycle Heat-Off Thermal Lockout Active

Typical Hot Water Reset Methods

• Direct Single Boiler reset – NOTE: Make sure that boiler can be

operated at lower temperatures – Do not recommend when DHW is

supplied via coil in boiler. • Direct Multiple Boiler reset • 2-way , 3-way or 4-way Motorized

Valve

Page 7: Heat-Timer: Save Energy While Improving Comfort in ... · HSS Temperature Greater Than 150°F Heat-Off HSS Temperature Begins to Fall 60 Minute Cycle Heat-Off Thermal Lockout Active

IMPORTANT Steam to Heat Exchanger

BURNER

HOT WATERDOMESTIC

BOILERSTEAM HEAT EXCHANGER HEATING SYSTEM

SENSORPUMPHEATING LOOP

TO

HEAT-TIMER

HWR

OUTDOORSENSOR

Page 8: Heat-Timer: Save Energy While Improving Comfort in ... · HSS Temperature Greater Than 150°F Heat-Off HSS Temperature Begins to Fall 60 Minute Cycle Heat-Off Thermal Lockout Active

Design Temperature only required on very cold day

Page 9: Heat-Timer: Save Energy While Improving Comfort in ... · HSS Temperature Greater Than 150°F Heat-Off HSS Temperature Begins to Fall 60 Minute Cycle Heat-Off Thermal Lockout Active

Reset Ratio Ranges

Page 10: Heat-Timer: Save Energy While Improving Comfort in ... · HSS Temperature Greater Than 150°F Heat-Off HSS Temperature Begins to Fall 60 Minute Cycle Heat-Off Thermal Lockout Active

Water Temperature Offset W

ater

Tem

pera

ture

(in

°F)

140

130

120

110

100

170

160

150

180

190

200

210

220

E Res

et Rati

o with

0° O

ffset

90

80

Outdoor Temperature (in °F)70 405060 0102030 -10 -20 -30

E Res

et Rati

o with

-20°

Offset

E Res

et Rati

o with

+20°

Offset

Page 11: Heat-Timer: Save Energy While Improving Comfort in ... · HSS Temperature Greater Than 150°F Heat-Off HSS Temperature Begins to Fall 60 Minute Cycle Heat-Off Thermal Lockout Active

Sequencing Controls for Multiple Boilers

• To maximize multiple boiler efficiency you must control them as a team.

A) Not all types of boilers should be controlled in the same fashion.

B) When selecting a control, make sure you know what type of burners you have and not just the number of boilers.

Page 12: Heat-Timer: Save Energy While Improving Comfort in ... · HSS Temperature Greater Than 150°F Heat-Off HSS Temperature Begins to Fall 60 Minute Cycle Heat-Off Thermal Lockout Active

• On/ Of f Bur ner s – Fl ame i s OFF – Fl ame i s ON

• Lo/ Hi Fi r e Bur ner s – Fl ame i s OFF – Fl ame i s Low – Fl ame i s Hi gh

• Al so 3 st age and 4 st age bur ner s

BOILER

OFF BOILER

ON

BOILER

OFF BOILER

Low BOILER

High

On/Off and Lo/Hi Burners

Page 13: Heat-Timer: Save Energy While Improving Comfort in ... · HSS Temperature Greater Than 150°F Heat-Off HSS Temperature Begins to Fall 60 Minute Cycle Heat-Off Thermal Lockout Active

• Full Modulation Burners allow the flame to be adjusted anywhere from low to high fire.

BOILER

OFF BOILER BOILER BOILER

Low BOILER BOILER

High

Full Modulation Burners

Page 14: Heat-Timer: Save Energy While Improving Comfort in ... · HSS Temperature Greater Than 150°F Heat-Off HSS Temperature Begins to Fall 60 Minute Cycle Heat-Off Thermal Lockout Active

TYPICAL CONTROL SYSTEM FOR MULTIPLE FULL MODULATION

BOILERS

Modulating Control

Hi Limit Control

Manual Reset Control

Modulating Controls

Page 15: Heat-Timer: Save Energy While Improving Comfort in ... · HSS Temperature Greater Than 150°F Heat-Off HSS Temperature Begins to Fall 60 Minute Cycle Heat-Off Thermal Lockout Active

Control Of Multiple Full Modulation Boilers with MultiMod

Hi Limit Control

Manual Reset Control

ONE SYSTEMSENSOR

Modulating Control

Page 16: Heat-Timer: Save Energy While Improving Comfort in ... · HSS Temperature Greater Than 150°F Heat-Off HSS Temperature Begins to Fall 60 Minute Cycle Heat-Off Thermal Lockout Active

HI FIRE

LEAD BOILER

Adjustable Modulation Start Point (50 to 100%)

HI FIRE

Boiler # 1

Boiler # 2

Boiler # 3

Modulation Increasing

Modulation Increasing

1 % 50 % 100 %

1 % 50 % 100 % Modulation Increasing

Adjustable Modulation Start Point (50 to 100%)

1 % 50 % 100 %

Typical Sequence of Operation for Higher Mass Boilers w/ Modulating Burners

Page 17: Heat-Timer: Save Energy While Improving Comfort in ... · HSS Temperature Greater Than 150°F Heat-Off HSS Temperature Begins to Fall 60 Minute Cycle Heat-Off Thermal Lockout Active

0

20

40

60

80

100

Boiler # 1Boiler # 2Boiler # 3

As Load is Increasing

Boiler #1 = 40% Boiler # 1 = 20%

Boiler # 2 = 20%

Boiler # 1 = 40%

Boiler # 2 = 40%

Boiler # 1 = 25%

Boiler # 2 = 25%

Boiler # 3 = 15%

Boiler # 1 = 40%

Boiler # 2 = 40%

Boiler # 3 = 40%

Typical Parallel Loading Mode for Lower Mass Condensing Boilers

Page 18: Heat-Timer: Save Energy While Improving Comfort in ... · HSS Temperature Greater Than 150°F Heat-Off HSS Temperature Begins to Fall 60 Minute Cycle Heat-Off Thermal Lockout Active

Using Communication Options to save energy.

Both on direct fuel usage and through information to

better maintain equipment.

Page 19: Heat-Timer: Save Energy While Improving Comfort in ... · HSS Temperature Greater Than 150°F Heat-Off HSS Temperature Begins to Fall 60 Minute Cycle Heat-Off Thermal Lockout Active

Heat-Timer Internet Control Management System (ICMS)

Page 20: Heat-Timer: Save Energy While Improving Comfort in ... · HSS Temperature Greater Than 150°F Heat-Off HSS Temperature Begins to Fall 60 Minute Cycle Heat-Off Thermal Lockout Active

Internet Controls Capabilities Capabilities: Web Based Application.

No On-site server is required No local software is required on personal computer

Wireless Space Sensors allow control to AUTOMATICALLY fine tune heating reset curve based on desired space targets

Alarm E-mail/Text Message capability Can alarm on any monitoring point

Reporting Capability Standard Reports, Custom reports

Additional Sensor Monitoring

Page 21: Heat-Timer: Save Energy While Improving Comfort in ... · HSS Temperature Greater Than 150°F Heat-Off HSS Temperature Begins to Fall 60 Minute Cycle Heat-Off Thermal Lockout Active

Sensor Monitoring Benefits • Space Temperature Inputs (Wired and Wireless)

– Allows the HTC control to fine-tune the reset curves based on space feedback and desired space temperatures.

• Burner Lockout – Alerts management when burner goes into a safety lockout condition

• DHW Temperature Inputs – Alerts management to possible dangerous high temperature DHW

• Boiler DHW Coil Temperature – Alerts management to possible dirty coil

• Oil Tank Monitoring – Alerts management to oil deliveries and consumption

• Oil Filter Monitoring – Alerts management to a dirty oil filter

Page 22: Heat-Timer: Save Energy While Improving Comfort in ... · HSS Temperature Greater Than 150°F Heat-Off HSS Temperature Begins to Fall 60 Minute Cycle Heat-Off Thermal Lockout Active

Additional Sensor Monitoring Benefits • Boiler Feed Water (Water Meter)

– Alerts management to potential boiler damage due to excessive make up water. Either due to numerous blow downs or leaks in piping system.Can assist in monitoring boiler chemical levels

• Boiler Stack Temperature – Alerts management to a dirty boiler which can decrease boiler

operating efficiency • Sump Pump Failure

– Alerts management to a possible flood condition or damaged sump pump

• Conductivity Sensor – Monitor boiler chemical level for both scaling condition or

corrosive condition. • Can monitor alarm outputs from others controls

– I.e.: Heat-Timer snow Melt control in alarm condition.

Page 23: Heat-Timer: Save Energy While Improving Comfort in ... · HSS Temperature Greater Than 150°F Heat-Off HSS Temperature Begins to Fall 60 Minute Cycle Heat-Off Thermal Lockout Active

Alarm Capabilities

All sensors have alarm capability (e-mail or text message)

• The alarm can be sent to multiple people – This provides the capability of immediate notification in

critical situations.

• Less critical or maintenance alarms can be e-mailed to the appropriate personnel – Sample Critical Alarm = Control in bypass, boiler in lockout – Sample Maint. Alarm = High stack sensor

Page 24: Heat-Timer: Save Energy While Improving Comfort in ... · HSS Temperature Greater Than 150°F Heat-Off HSS Temperature Begins to Fall 60 Minute Cycle Heat-Off Thermal Lockout Active

10

9

8

7

6

5

4

3

2

1

MPCNM

T1

T3

T5T5A

SS

SS

SS

SS

T5B

Wireless Space Sensor

Example

10 Story Building

60 Units

10% Rule = 6 Apt Space Sensors

Page 25: Heat-Timer: Save Energy While Improving Comfort in ... · HSS Temperature Greater Than 150°F Heat-Off HSS Temperature Begins to Fall 60 Minute Cycle Heat-Off Thermal Lockout Active

WIRELESS DIAGNOSTICS

Wireless Reception

Space Temps

Battery Indication

Page 26: Heat-Timer: Save Energy While Improving Comfort in ... · HSS Temperature Greater Than 150°F Heat-Off HSS Temperature Begins to Fall 60 Minute Cycle Heat-Off Thermal Lockout Active

BUILDING 3D VIEW

Wireless Paths

Page 27: Heat-Timer: Save Energy While Improving Comfort in ... · HSS Temperature Greater Than 150°F Heat-Off HSS Temperature Begins to Fall 60 Minute Cycle Heat-Off Thermal Lockout Active

Click for Control Settings

Click to View Boiler Room

Click to View Histories

Click to View Alarms

Click to View Sensors

Click to View Over-rides

Click to Set Schedules

SHORTCUTS

Page 28: Heat-Timer: Save Energy While Improving Comfort in ... · HSS Temperature Greater Than 150°F Heat-Off HSS Temperature Begins to Fall 60 Minute Cycle Heat-Off Thermal Lockout Active

Monitor Multiple Building Alarms on One Screen

Buildings in Alarm Condition

Page 29: Heat-Timer: Save Energy While Improving Comfort in ... · HSS Temperature Greater Than 150°F Heat-Off HSS Temperature Begins to Fall 60 Minute Cycle Heat-Off Thermal Lockout Active

MPC PLATINUM (Steam) Cycle Timeline

Vari-Boost

Fast Cool Down

SPACE Lockout

Page 30: Heat-Timer: Save Energy While Improving Comfort in ... · HSS Temperature Greater Than 150°F Heat-Off HSS Temperature Begins to Fall 60 Minute Cycle Heat-Off Thermal Lockout Active

HISTORY (Multi-Temp. Sensors)

Outdoor Temp

Space Temps

Heating Sys Sensor