CHUNLAN -B, Руководство по обслуживанию

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Type selection
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Chapter VII Type selection
I. Application scope
Air duct type air conditioners of our company include card type low static pressure series
(FRD23-B, FRD35-B and FRD50-B), low static pressure series (FR(D)71-B and
FR(D)100-B), medium static pressure series (FR95-C and FR125-C/S), and high static
pressure series (FR(D)95, FR(D)180/S, FR(D)125/S and FR(D)260/S). These models have
similar but different features and applications: card type low static pressure models adopt
extra low noise design and are suitable for homes, offices and other small areas; low and
medium static pressure air duct air conditioners have low noise and relatively low exhaust air
static pressure, hence suitable for houses, villa and other sites with shorter air delivery
distance and high noise requirement; high static pressure air duct air conditioners have
relatively high exhaust air static pressure and noise, hence suitable for supermarkets,
department stores, concert and other sites requiring long air delivery distance and tolerating
noise.
※
Dealers and users shall reasonably select low, medium or high static pressure air duct air
conditioners according to characteristics of application sites.
※
In case an installer or designer is unaware of the relation between static pressure and noise
level, and fails to select proper model, user may think that high static pressure air duct type air
conditioner has low noise.
II. Applicable areas of various models of air duct type air conditioners (based on 3m
ceiling height)
FR23-B FR35-B FR50-B
FR71-B
FRD71-B
FR100-B
FRD100-B
FR95(-C)
FRD95
FR125(-C)/S
FRD125/S
FR180/S
FRD180/S
FR260/S
FRD260/S
16-25
㎡
25-38
㎡
35-55
㎡
50-60
㎡
70-80
㎡
70-80
㎡
80-100
㎡
120-140
㎡
170-200
㎡
Notes:
①
Office: 90
～
140W/
㎡ ②
Restaurant & bar: 200
～
350W/
㎡
③ Shop: 150 ～ 250W/ ㎡ ④ Recreation: 200 ～ 350W/ ㎡
In case careful calculation of air conditioning loads is not carried out according to detailed
cooling/heating load calculation method or rough calculation method specified in “Air
conditioning design manual” and “Centralized air conditioning” standard etc. in combination
with application site information, so that 5HP model is selected where 4HP or even 3HP shall
be used,
higher noise will occur due to small space and short delivery distance.
Solution:
Carefully calculate cooling/heating loads according to “Air conditioning design manual” and
“Centralized air conditioning” standard etc. and select proper model.
Certain margin shall be left in type selection; otherwise user may complain of bad cooling or
heating effect.
In case heating effect must be ensured at low temperature, models with auxiliary electric
heating are preferred.