“Geneva Housing Authority currently utilizes Energy Metering Systems in an effort to keep track of energy consumption by our residents. Bi-weekly reports are received from EMS, indicating potentially problematic units within our housing portfolio. From these reports, GHA is able to generate maintenance work orders/inspections that direct staff to the units in question.

Results from these work order inquiries assist us in determining whether or not there is some type of alternate heating source be used by the residents, if they are tampering with thermostats, if they may be leaving windows/doors open, or if there is merely a problem with the heating equipment itself. The immediate issue is corrected in a timely manner, and results are logged by site managers at each development. GHA then determines the appropriate course of action depending on the nature of the circumstance. Warning notices are issued to residents who are clearly circumventing the energy reduction measures that are in place.

EMS equipment clearly assists GHA by pinpointing problem areas and by giving us direction on what type of infraction to look for based on the monitoring data received.”

- Geneva Housing Authority

TMON - The Temperature Monitoring System

System Specifications

Wall mount installation of TMON device adjacent to existing Thermostat allows for secondary monitoring of unit temperature.

Data collection via Inovonics wireless repeater network and DCC (data collector and concentrator) or Energy Metering Systems WDC (Wireless Data Collector)

Measures average air temperature each hour. Data reporting each 24 hour period.

Model Number:

TMON (Inovonics)

TMON Specifications

Accuracy:

Average Temperature ± 0.5°F

Input:

Air temperature sensor

Output:

Data count on average temperature over 24 hours

Dimensions:

1-3/4” Wide x

3-1/2” Height x

1” Depth

Power Requirements:

Battery powered (uses Inovonics Transmitter Lithium Battery) – single battery has 5 + year life expectancy

TBD

Heat/Energy Allocation

Energy Metering Systems, Inc. offers a complete solution for residential energy allocation. Many apartments and condominiums are configured for easy installation of G.A.S. Energy Allocation Systems to measure gas consumed for heating and hot water. Over 60% of gas consumed in multi-family communities is attributable to heating energy. Knowing this offers the best opportunity for cost savings through resident education and the transfer of responsibility for those costs. The G.A.S. Energy Allocation System accurately and equitably allocates gas costs through an integrated solution including wireless technology and high quality gas allocation meters.

The benefits are clear:

Immediate Utility Cost Recovery
Resident Control of Consumption
Increase in Property Values
Decrease in Operating Expenses
Rent Stabilization Opportunity

The G.A.S. Energy Allocation system is designed to measure gas-fired furnaces, domestic hot water heaters, baseboard heating systems, fancoils and fireplaces. By measuring the amount of runtime, and measuring any applicable temperatures, we are able to collect data on individual units to determine energy consumption. We incorporate the manufacturer's efficiency specifications on the heating unit, and the time or time and temperature data, we are able to determine the individual unit's gas usage.

The system accurately allocates gas consumption using standard non-proprietary equipment. The microprocessor based design incorporates unique daily tampering circuitry to detect disconnects, cut wires and other types of tampering. In addition, failure of zone valves may also be determined to assist maintenance personnel in their repair work. The unique daily tampering circuitry allows property management to verify equipment up time of 99%+ and subsequent resident utility billing accuracy.

GAS Energy Allocation Systems:

G.A.S._T - measures timing and is primarily used for Forced Hot Air (FHA) Furnaces, Domestic Hot Water Heaters, and Fireplaces.
G.A.S._TT - measures both time and temperature and is used primarily for Baseboard Radiation and Fan Coil systems.

Features

Error & Tampering Capabilities
Industry standard Inovonics wireless platform
Turnkey installation
Designed and supported for 30 year life expectancy

Product Application For

Forced Hot Air Furnaces (FHA)
Baseboard Radiation (BBR) - 24v zone valve or non-electric/pneumatic
Fan Coils - 1 speed, 2 speed or 3 speed
Domestic Hot Water Heaters- central or individual
Fireplaces

G.A.S_T DHW-T Gas Allocation System Meter

The G.A.S._T heat allocation meter is the standard G.A.S. meter designed for use in the timing of heating or domestic hot water systems. This meter can be used with a domestic hot water heater that does not have a 24 vac gas valve or a millivolt thermocouple. The G.A.S._T meter uses the proven G.A.S. hardware design to provide more accurate heat measurements in 36 second increments using standard non-proprietary equipment.

The G.A.S._T requires a flue thermistor installed to measure gas flow “on time” by sensing the flue gas temperature rise and fall associated with the main boiler firing. Requires unit to be calibrated during burner off time thereby setting permanent temperature threshold that on board memory retains.

The G.A.S._T includes tamper detection circuitry which detects resident tampering, battery failure or meter failure to facilitate meter servicing.

Model Number:

GAS_T – IN DHW-T

G.A.S_T Gas Allocation System Meter

The G.A.S._T heat allocation meter is the standard G.A.S. meter designed for use in the timing of heating or domestic hot water systems. This meter has multiple applications including FHA, central or individual domestic hot water heater, fan coil or fireplace. The G.A.S._T meter uses the proven G.A.S. hardware design to provide more accurate timing measurements in 36 second increments using standard non-proprietary equipment.

Forced Hot Air Furnace installation of the G.A.S._T requires a connection to the 24vac or millivolt gas valve to measure runtime. In Domestic Hot Water Heater installations the G.A.S._T requires a 24vac gas valve or flue thermistor connection to measure gas flow “on time”. In fireplace installations the meter will be connected to the on/off switch and can be used on either 24vac or millivolt version of fireplaces. Fireplace G.A.S._T meters are available in surface mount or recessed versions. Fan coil installation of the G.A.S._T requires a connection to the 24vac or 120vac zone valve (with step down transformer) to measure runtime.

The G.A.S._T includes tamper detection circuitry which detects resident tampering, battery failure or meter failure to facilitate meter servicing.

Model Number: *Note: Most models available with Hexagram output. Please call for details.

Furnace

GAST-FHA

GAST-FHA-MV

Domestic Hot Water

GAST-DHW-24V

GAST-DHW-T

Fireplace

GAST-FP-SMT

GAST-FP-RR

Fan Coil

GAST-FC

Furnace Heating Systems

Heat output from a forced hot air furnace (FHA) is provided when the main gas valve is opened allowing gas flow to the main furnace. The FHA is a constant BTUH output device. This means that the amount of heat delivered per hour (while the main burner operates) is constant as measured in BTUH. The amount of heat delivered appears as the BTUH output rating on the furnace model number name plate and is typically in the range of 40,000 to 100,000 BTUH.

GAS_T Metering System

The GAS_T (Gas Allocation System Meter - Timing) wireless metering module is designed to accurately meter FHA systems with 24VAC gas valves. The 24VAC control wires to the main gas valve are connected to the 24VAC input on the GAST module which measures the length of time (better than 1 second resolution) that the gas valve is open and the main burner is operating.

This operating time is converted to counts of 1 per 36 seconds (.01 hour) of FHA operation and output to the Inovonics 5201-Ext transmitter for transmission through the Tapwatch Hardware/software system.

Error detection circuitry is incorporated in the design of the GAST module in order to detect disconnected wires from the GAST module to the gas valve wires. Error codes from this circuitry to the Inovonics 5201-Ext transmitter allow the meter reading/billing provider to precisely determine if service is required to reconnect wires to the gas valve or if residents have simply not used their furnaces to heat their apartment.

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