Efficiency Gains with Browning Belt Drives November 5, 2015 Confidential-Do Not Distribute Larry Denyer HVAC Industry Specialist – Western US

Agenda Industry Overview Energy Responsibility Properly Tensioning Belts Replacing Worn Sheaves V-Belt Energy Savings Browning Products For HVAC

Commercial Fan & Blower Equipment Four Most Common V-belt Drive Applications

Commercial Energy Consumption Snapshot #1 Consumer of Electricity is HVAC

Belt type has a 3-5% impact on energy efficiency… >Raw edge cogged V-Belts provide a higher coefficient of friction with the sheave groove wall which creates less slip when properly tensioned.  Raw edge belts directly replace wrapped belts (BX48 replaces B48).  Browning raw edge belts can transmit more HP than equivalent wrapped belts.  Browning raw edge cogged belts provide better sheave groove wall contact than wrapped belts when used with smaller diameter sheaves. Browning ‘Raw Edge’ V-Belts

Beyond proper v-belt tensioning, inspection for sheave wear is also critical to efficiency New Sheave Payback is achieved in 4.5 months. Worn Sheave A Year 1Year 2Year 3Year 4Year 5 $ $ $ $980,00 $1,250 Worn Sheaves can easily cause efficiency to drop below 90%. Drives with quality sheaves in good condition and with quality belts, operate up to 98% efficient. Worn Sheave A New Sheave B > 1/32” Wear 5-Year Added Electricity Cost Using Worn Sheave A above What Is 1/32” Of Wear Costing You? Worn sheaves don’t provide adequate sheave sidewall contact which can cause slip. Uneven wear on multiple groove sheaves can create uneven load sharing across all belts reducing efficiency and possibly creating vibration or noise.

EMERGING TREND: Commercial customers are now focusing on energy savings as part of their service contracts. HVAC Fan and Blower - Energy Responsibility FACT:A typical 20 horsepower (hp) electric motor running continuously at full load costs more than $14,000 per year to operate at a cost of $0.10/kWh. Primary Contributors to Fan & Blower Energy Efficiency: Design – Assume proper blower design Premium Efficiency Motors – gain efficiency by replacing with PE motor Proper Belt Tension – 10-15% loss if under-tensioned Belt type – 3-5% gain by replacing wrapped v-belt with raw edge v-belts Maintenance – 5-8% loss can occur due to sheave wear

4-Step Efficiency Plan Replace Worn Sheaves Groove wear greater than 1/32” indicates replacement is needed Upgrade To Cogged Belts Standard Wrapped V-belt Install Self-Adjusting Motor Base Spring design promotes greater efficiency by constantly maintaining v-belt tension Properly Tension Belts Cogged (notched) V- belt

Browning Retrofit Overview The Browning Retrofit Program replaces older high horsepower drives with new high performance technology Optimizing Drives: Reduces part complexity Reduces number of belts Decreases sheave replacement cost Improve Drive Efficiency Resulting in Lower Cost Solutions and Reduced Maintenance Spending

Why Retrofit / Upgrade the Drive? Energy Savings Worn Sheaves cost 5-8% efficiency loss A 20HP Fan losing 3% costs on avg. an extra $294 in energy/kWh Maintenance Savings Worn Sheaves cause premature belt failure Sheaves need to be replaced on average every 5-7 years The small motor sheave wears out faster, but the smaller the fan sheave the faster it wears as well. Maintenance Cost Savings by Extended Belt Life / Reduced PM Schedule A newly retrofitted drive can cost up to 60% less in component cost!!!

Changing to a Browning raw edge cogged belt translates to efficiency gains… and dollar savings for end customer This Contractor Just Saved His Customer $400 in 15 Minutes by Replacing a B48 Wrapped V-Belt with a BX48 Raw Edge V-Belt and Properly Tensioning the Drive! A typical 20 horsepower (hp) electric motor running continuously at full load costs more than $14,000 per year to operate* * According to MotorUp, a Northeast regional outreach program initiated through Northeast Energy Efficiency Partnerships (NEEP),

Retrofit Project – GWL Realty – Vancouver 40 HP Cost Savings Example Existing Drive: 5 Groove B120 v-belt drive Redesign: 3 Groove 5VX1180 v-belt drive Energy Savings: $540 Annually Solution: 34.1% less than existing drive Reduction in installation time Existing (5) B120 Belt Drive New (3) 5VX1180 Belt Drive

Retrofit Project – St. Claire College – Windsor HP Supply Fan Cost Savings Example 3 Existing Drives: 6 Groove C110 v-belt drive 3 Redesigns: 3 Groove 5VX1000 v-belt drive Energy Savings: $5983 Total annual savings Solution: $1900 Total for all 3 drives Existing (6) C110 Belt Drive New (3) 5VX1180 Belt Drive

Operational Cost Savings for Walmart Typical Findings: 50% of v-belts will not be Browning notched Performance loss and up to 3% loss in efficiency 65% of Sheaves will have excessive wear Loss of up to 5% efficiency 70% of v-belt drives will be under-tensioned Loss of up to 12% efficiency Potential Energy Savings 310 Stores 3,100V-belt drives - (10) 7.5 hp Assume 11% Efficiency Loss 3% Notched belts 4% Worn sheaves 5% Tension $ savings per drive $ x 3,100 drives = $1,079,683 M Energy Savings Potential Maintenance Savings 310 Stores Semi-annual P.M. 3,100 V-belt drives - (10) 7.5 hp 2 belts per $15 ea 30 min each $45 hr. $93 K x 2 per year = $186 K belts $69 K x 2 per year = $139.5 K labor Extend PM Schedule to “Annual” on belts to one change per year... $162 K Maintenance Savings Typical Findings: Maintenance and ppreventative maintenance practices vary Quarterly and bi-annual HVAC “PMs” are quite common Filters / V-Belt change outs, coil cleaning and refrigerant checks are typically the focus

Proof of Energy Concept … Energy service audits to help users with incentives & ‘green’ initiatives… We have 3 main approaches: >Theoretical Calculations  We can calculate energy savings based on performance increases >In-house Test Cell  To be used as a training tool for contractors & wholesalers; shows our ‘proof of energy concept’ >Field Diagnostic Equipment at a customers facility with HVAC Specialists  Use of Energy Monitoring with Air Flow Meters to Measure Fan Efficiencies Energy Savings - Concept Proof Supporting Building Owners Through The Incentive Claims Process

The Browning 5VX Belt Fabric Top and Bottom Increases Rigidity & Stability.. Reduces stress on the cord line Increases Belt Life…... Wider Notch Spacing Increases Rigidity & Stability.. Reduces stress on the cord line. Increases Belt Life…... Ground Form Reduces Vibration, Increases Belt & Increases Bearing Life C.D. Variation Industry Standard.200 Browning.020 Yes Is There Really a Difference? Yes Theory Results in the Real World 5VX750 OEM Rejects Before5000 PPM After 0 PPM Variable Pitch Sheave 5VX Belt 18.3% Greater Contact Browning V-Belts have 10X tighter tolerance than industry standard! Exclusive! Browning Grip-notch Constructed Specifically for HVAC Applications

Summary: Efficiency gains can be realized through v-belt drives Increasing Utility Costs Driving Energy Conservation The #1 electrical energy draw in a typical commercial facility are the motors on HVAC fans & blowers 1. Proper Belt Tension – 10-15% loss if under-tensioned 2. Belt type – 3-5% gain by replacing wrapped V-Belts with raw edge V-Belts 3. Maintenance - 5-8% loss can occur due to Sheave wear Browning has the product, tools and services to quantify the energy gains/losses in HVAC drive system

Thank You! Contact: Larry Denyer Western US HVAC Industry Manager Visit us online: