The MOST quiet Aircon

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Re: The MOST quiet Aircon

Postby Bogart » Tue Dec 16, 2014 10:42 pm

Great! Thanks Nes! :)
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Re: The MOST quiet Aircon

Postby hshrader » Wed May 13, 2015 8:42 am

This is a great discussion, thanks!
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Re: The MOST quiet Aircon

Postby SD-6 » Fri May 22, 2015 6:18 pm

Just a question. How come we need to add 1/2 a horsepower more with an inverter AC if we are cooling room of the same size?
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Re: The MOST quiet Aircon

Postby SD-6 » Wed Jul 01, 2015 11:59 pm

When does Inverter do not make sense?
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Re: The MOST quiet Aircon

Postby Gau_Ban » Thu Jul 02, 2015 10:00 pm

SD-6 wrote:When does Inverter do not make sense?


1. When you use the aircon occasionally.
2. When you use the aircon for a few hours a day and the savings in electricity won't offset the higher initial cost of an inverter type aircon.
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Re: The MOST quiet Aircon

Postby SD-6 » Sun Aug 09, 2015 7:45 pm

The day I've been dreading has arrived. My energy bill has arrived.

Last month

Bill Period
- 07 Jun 2015 to 06 July 2015
Total KWH
- 1974
Total current Amount
P21,191.52

This month

Bill Period
- 07 Jul 2015 to 06 Aug 2015
Total KWH
- 1156
Total current Amount
P12,005.67

After 12 months of foot dragging discussions I upgraded 3 rooms from window non-inverter AC that were on average 10+ years to a 2015 model spit inverter AC.

These are the changes that were made with timeline

Monday, July 6
- Energy bill arrives

Saturday, July 11
- Room A: 28sqm; ideally can be handled by 2.0hp
-- Old: 1.5hp Condura CQSRM120BA
--- EER 9.0 Kj/h.W*
-- New: 2.5hp LG HS-24ISM
--- EER 13.78 Kj/h.W

Monday July 13
- Room B: 17sqm; ideally can be handled by 1.5hp
-- Old: 2.0hp Carrier WCARP019EA
--- EER 10.0 Kj/h.W
-- New: 2.0hp LG HS-18ISM
--- EER 13.9 Kj/h.W

Monday July 13
- Room C: 17sqm; ideally can be handled by 1.5hp
-- Old: 2.0hp Panasonic CW-XC184EPH
--- EER 10.5 Kj/h.W
-- New: 2.0hp LG HS-18ISM
--- EER 13.9 Kj/h.W

Thursday, Aug 6
- Energy bill arrives

*Best guess

========

Below is the stats of each room

Room A:
- East facing window that has tint and blackout curtains
- South facing window that has tint and blackout curtains
- Cement walls all around
- 2.5m ceiling
- Top floor
- Wooden floor and ceiling
- Two wooden doors
- One person
- One 40-inch LCD HDTV
- 8-12 hr per day for 6 days a week

Room B:
- East facing window that has tint and blackout curtains
- South facing window that has tint and blackout curtains
- Cement walls all around
- 2.5m ceiling
- Top floor
- Wooden floor and ceiling
- Two wooden doors
- One person
- One desktop with LED display
- 8-12 hr per day for 6 days a week

Room C:
- East facing window that has tint and blackout curtains
- Cement walls all around
- 2.5m ceiling
- Top floor
- Wooden floor and ceiling
- Two wooden doors
- One person
- One desktop with LED display
- 8-12 hr per day for 6 days a week

Conclusion:

- We should have gone inverter 15 years ago in 2000.
- Even if your inverter AC is overpowered it will still be more energy efficiently than a conventional AC.
- Although overpowered inverter ACs do not increase power consumption and gives flexibility in more rapid cooling it is NOT a must unless you cool your room to say less than 20C.
- Inverter everything you use often like the refrigerator, AC and washing machine.
- Next project inverter front loading washing machine and LED lighting with 110 lumens per watt or better energy efficiency.
- Target is below P5,000 bill.
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Re: The MOST quiet Aircon

Postby TonyC » Mon Aug 10, 2015 5:07 pm

Inverters are the way to go if you are a regular aircon user.....just wondering on the maintenance cost side? Anybody has any experience on maintenance cost of inverters?
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Re: The MOST quiet Aircon

Postby SD-6 » Mon Aug 10, 2015 5:25 pm

Tony I was told about P1,200/unit every 6 months.

Over the economic life of 15 years that would be equivalent to 36-40k?

ROI increases by a few more months.

I was told all 2015 LG split inverter ACs have 10 year compressor warrant. :inlove:
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Re: The MOST quiet Aircon

Postby SD-6 » Tue Sep 08, 2015 8:47 pm

Before inverter AC

Bill Period
- 07 Jun 2015 to 06 July 2015
Total KWH
- 1974

25 days of inverter AC

Bill Period
- 07 Jul 2015 to 06 Aug 2015
Total KWH
- 1156

Whole month of inverter AC

Bill Period
- 07 Aug 2015 to 06 Sept 2015
Total KWH
- 985

Next step to reduce utility expense

- Applied for Meralco Peak/Off-Peak
- Switching from fluorescent tube & CFL to industrial LED lighting with the target of consuming less than 500kWh/month
- Fixing water leak, hopefully drop water consumption by 67-75%

===============

For households whose water and power bill are under Senior Citizen's name

If power is consumed at below 100kWh/month you qualify for 5% SC %

If water is consumed at below 30cu.m. you qualify for 5% SC %

Source: http://www.gov.ph/services/senior-citiz ... discounts/

================

Image

Gree and Meralco have a promo right now.

I saw this on this month's Meralco bill.
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Re: The MOST quiet Aircon

Postby SD-6 » Tue Apr 25, 2017 3:48 pm

Change in power consumption from the time we switched from 3 window ACs bought during late 90s to 3 inverter split ACs back in 2015.

1,974kWh - July - 3 window ACs from the 90s
1,156kWh - August - 25 days of inverter ACs
0,985kWh - September - all days of inverter ACs

Current power consumption over a 12 month period from May 2016-April 2017 as sourced from https://e-services.meralco.com.ph

1,361kWh - May (4 day out of the house)
1,308kWh - June
1,132kWh - July
1,212kWh - August
1,208kWh - September

1,048kWh - October (4 day out of the house)
1,013kWh - November
0,908kWh - December (10 day out of the house)
0,923kWh - January
0,772kWh - February
0,658kWh - March
0,771kWh - April (5 day out of the house)

During Holy Week we switched over from a twin tub washer&spinner bought in 2007 to an inverter front loading washer&dryer. The replaced twin tub was not used for about a month due to break down.

I expect reduction in power, water and laundry detergent consumption from the upgrade.

I will find out the ROI after a few months use.
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Re: The MOST quiet Aircon

Postby SD-6 » Tue Aug 01, 2017 1:43 pm

Still mystified how inverter ACs work?

Click on this link to learn.

http://www.lghvacstory.com/tech-mechine ... ers-part1/
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