Daikin vs.三菱迷你
你好，
我想知道，GBA的好人是否可以就安装的几个迷你拆分提供意见。我们有一家本地工程公司使用Wrightsoft来尺寸的设备。我们有富士通单元的规格，因为我们认为他们对最好的爆炸。他们还允许将管道单元垂直安装在2楼。
The brief details are the following:
Location: between London and Kitchener, Ontario, Canada (ie. Zone 6)
1rst floor: ~1500 sqft
2nd floor: ~1300 sqft
1rst & 2nd floor insulation: R-23 continuous exterior, R-22 batt interior
阁楼：R-100
Windows：U值0F 0.20
Anticipated leak test: ACH50 between 1.0 & 2.5 (hopefully better)
备用热量：浴室的松下加热排气风扇，地下室和一楼的电壁炉以及用于紧急情况的ERV供应运行的内联加热器（财产可以使用多个，常规的燃料，大型发电机，因为它基于农业，因此房屋是基于房屋的，因此所有电动）
Per the attached plan, the following Fujitsu models were spec’d:
1rest ductless：18rlxfwh - AOU18RLXFWH（户外）W/ ASU18RLF（室内）
2nd floor ducted: 9RLFCD – AOU9RLFC (outdoor) w/ ARU9RLF (indoor)
Specs for easy reference:
https://www.fujitsugeneral.com/us/resources/pdf/support/downloads/submittal-sheets/current/18RLXFWH-2019B.pdf
https://www.fujitsugeneral.com/us/resources/pdf/support/downloads/submittal-sheets/current/9rlfcd-2019b.pdf
不幸的是，由于劳动力短缺和供应问题，我们无法安装富士通单位。我们有以下选项可用：
Daikin:
These are our most readily available units and what our installer is most familiar with.
RXL18UMVJUA（户外）W/ FTX18UVJU（室内）
RXL12QMVJU (outdoor) w/ FDMQ12RVJU (indoor)
规格表：
https://www.daikinac.com/content/assets/doc/submittaldatasheets/single-split/fdmq18rvju-rxl18umvjua-submittal-v1.pdf
https://www.daikinac.com/content/assets/DOC/SubmittalDataSheets/Single-Split/FTX12NMVJU-RXL12QMVJU%20Submittal%20Sheet.pdf
My primary questions are:
1. 6区设置中的任何人是否在寒冷中拥有带有Daikin单元的经验？它们的特征是供暖到-13°F（类似于富士图），并且根据Weatherspark数据似乎非常适合（https://weatherspark.com/s/18239/3/Average-Winter-Weather-in-London-Canada#Figures-Temperature）
2.有人曾经垂直安装过戴金管的室内单位吗？这就是我们与三菱有关的富士通的原因之一。如果不能垂直安装它们，它将使管道在2楼变得有趣。我已经联系了他们，但是获得技术问题的答案似乎已经很困难了。
3.对Daikin品牌的评论或疑虑？我的研究表明，它们被认为是日本外面更好的品牌之一，但一直对现实世界的经验表示赞赏。
4. Project has a 2″x8″ service cavity above the 2nd floor. Along w/ bulkheads, this was envisioned for electrical, low voltage, and HVAC. While residential ducted heating is usually preferred in the floor for heating, how much of a performance penalty should one expect if the ducts are in the ceiling (ie. directed down instead of up)? Another option is to run an interior wall bulkhead along the central wall by the stairs and route the ducts by the joists. It would just make things a bit more fun as the cabinets have been set there and would need to be changed. Opinions as to which is a better option are also appreciated.
5. Any insight as to spec’ing pan or aux heat w/ these? I’m not as familiar w/ this brand in that regard.
6.任何推荐的配件？我知道许多为富士通和三菱单元推荐单独的温度计。
三菱：
These are really only the backup option as the installer strongly prefers Daikin.
MUZ-FH18NAH2 (outdoor) & MSZ-FH18NA (indoor)
suz-ka09na-th（户外）和sez-kd09na4（室内）
在此处列出的是完整的，但我完全希望我们会选择戴金（Daikin），禁止一些重要的“陷阱”。对它们的任何意见都将不胜感激。
Thanks again.
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Replies
I'll give your post a bump. FWIW. It's my understanding that Daikin is considered top-shelf equipment. (I had a Daikin ducted unit in my last home and really liked it. Currently retrofitting a Mitsubishi Hyperheat system into my current place.)
我将更加专注于确保设备的尺寸适当。理想情况下，您希望该系统延长延长速度。我的个人经验是，这种方法可以带来更大的舒适感。我在网上看到的许多投诉通常是安装人员放置超大设备的结果。
Yes, sizing is important and I think the OP has presented data that indicate the sizing is correct, in contrast to many that oversize.
In CZ6, for 2800 sq ft, with that amount of insulation, ventilation may be a factor to consider. But 18k + 9k (27k total) seems about right. I have much less insulation for CZ6, 2100+ sq ft with Mitsubishi 28.6k (15k, 12k, 9k ducted), which had the house doing fine at -6F with wind this week.
So nice to see a post with sizing that looks realistic ;-) And, looks like a great project too.
对于史蒂夫（Steve）的评论而言，大小是国王。马丁的这篇文章解释了为什么以及如何将其分解为您的产品选择：选择合适的迷你玻璃。他也链接到一些有用的资源。
多年来，我指定了Fujitsu，三菱和几个Gree单位。我的经验是在气候区4。一个问题使我成为三菱的粉丝是恒温器选择。我从来没有一个房主喜欢富士通或三菱的专有恒温器。对我来说，他们是一个残酷的笑话。这尤其令人沮丧的是，房屋在主楼层上有一个常规的热泵和2楼的最小分割。这意味着恒温器在每个楼层都不同。一个主人甚至要求我们更换迷你拆分，因为他讨厌恒温器如此糟糕。几年前，三菱推出了一个适配器PAC-US-444，该适配器允许常规的24伏“美国化”恒温器。然后，我们将霍尼韦尔声望与通风控制和湿度控制的板上控制。它使迷你崩溃的生活变得如此容易得多。 The HyperHeat units have performed very well. Im guessing Daikin has comparable performance. But I dont know about their control options.
Hi all. I must have forgotten to have email notifications clicked. Thanks so much for your input--it's greatly appreciated.