Pipe Fittings; Outdoor Unit Combination; Overview; Branch Joints - Sinclair SDV6 User And Installation Manual

Table 2.3
HP PIPE ΦD0(OD)
Gas pipe
25.4
8-12HP
Liquid pipe
12.7
Gas pipe
28.6
14-16HP
Liquid pipe
15.9
Gas pipe
31.8
18-24HP
Liquid pipe
19.1
Gas pipe
31.8
26HP
Liquid pipe
22.2
Gas pipe
38.1
28-32HP
Liquid pipe
22.2
L-shaped pipe size
ΦD1
ΦD0

2.4 Pipe Fittings

The schematic after the L-shaped pipe (from
accessories) is properly connected to the unit is
shown below:
Liquid pipe
Gas pipe
Check port (used to measure
connection
connection
system pressure, charge
port
port
refrigerant and vacuumize)
65 41
207
73
Table 2.4
HP
8-12 14-16 18-24
SIZE
ΦA(ID) Φ12.7 Φ15.9 Φ19.1
ΦB(ID) Φ25.4 Φ28.6 Φ31.8

3 OUTDOOR UNIT COMBINATION

3.1 Overview

This chapter contains the following information:
List of branch joint fittings.
Recommended combination for outdoor units.
L2
L1
130
230
160 265
125 225
155 255
130 220
162 245
130 130
165 165
155
115
165 165
L4
L2
Figure 2.4
ΦA
ΦB
Figure 2.5
Unit: mm
26 28-32
Φ22.2 Φ22.2
Φ31.8 Φ38.1
14
ΦD1(ID)
L3 L4
20 20 25.4
15 15
12.7
20 20 28.6
15 15
15.9
25
20 28.6
15 15 15.9
25 25
31.8
20 20 22.2
20 20 34.9
20 20
22.2

3.2 Branch Joints

Table 3.1 For SDV6 combinable series
Description
Outdoor Unit Branch
Joint Assembly
Indoor Unit Branch
Joint Assembly
On the choice of branch joints, refer to section "4.3.3
Selecting piping diameters".
3.3 Recommended Outdoor Unit
Combination
CAUTION
The total capacity of the IDU shall be
between 50%–130%
capacity of the ODU.
In the system where all indoor units are
running at the same time, the total capacity of
the indoor units should be less than or equal
to the combined capacity of the outdoor unit
to prevent overloading in poor operating
conditions or narrow operating space.
The total capacity of the indoor units can be
up to a maximum of 130% of the combined
capacity of the outdoor unit for a system
where not all the indoor units are operating at
the same time.
If the system is being used in a cold region
(ambient temperature is -10°C or below) or a
very hot, heavy-load environment, the total
capacity of the indoor units should be less
than the combined capacity of the outdoor
unit.
The heating capacity of the heat pump will
reduce when the
temperature is lowered. Therefore, when
installing a heat pump in an area with low
temperatures, it is recommended to use the
IDU with an auxiliary heater.
Unit: mm
ΦD2(ID) R
50
25.4
25
12.7
55
28.6
30
15.9
60
31.8
40
19.1
60
31.8
40
22.2
80
38.1
40
22.2
Model
SDV5-HW02N1M
SDV6-HW02N56M
SDV5-HW03N1M
SDV6-HW03N96M
SDV4-HN01k
SDV4-HN02k
SDV4-HN03k
SDV4-HN04k
SDV4-HN05k
SDV4-HN06k
SDV4-HN07k
of the combined
outdoor ambient