Heat Controller A-VMH36QC-1 Service, Руководство по установке, Страница: 7 / 25

7
Heat Controller, Inc.
VMH SerieS
Installation Manual
10
7. Installation Details
7.1 Wrench torque sheet for installation
Outside diameter Torque Additional tightening torque
mm inch
N
.
m N
.
m
Ф6.35 1/4 15(153kgf.cm) 16(163kgf.cm)
Ф9.52 3/8 25(255kgf.cm) 26(265kgf.cm)
Ф12.7 1/2 35(357kgf.cm) 36(367kgf.cm)
7.2 Connecting the cables

The power wiring should always follow NEC and local codes, with respect to the unit’s, rating plate. See
installation manual for additional information. Main power connection is 208/230V/1PH~60HZ.

The communicating cable, which connects between the indoor and outdoor units must meet all NEC and
local codes, with respect to the unit’s rating plate. We recommend using 14 AWG/4 conductor Stranded THHN
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Ф Ф V cable.
Pipe length and elevation
Unit
Pipe size
Standard
length
(m)
Max.
Elevation
B (m)
Max.
Length
A (m)
Additional
refrigerant
(g/m)
Gas inch
(mm)
Liquid inch
(mm)
9K 3/8’’ (Ф9.5 2) 1/4’’ (Ф6.35)
(5)
16.5ft
(10)
3 3 ft
(15)
50ft
(20)
0.2 oz/ft
12K/18K 1/2’’ (Ф12.7) 1/4’’ (Ф6.35)
Max. Total length for all rooms
Dual-zone (m) Tri-zone (m) Quad-zone (m)
(30)100ft (45)150ft (60)200ft
NOTES:

Capacity test is based on standard length and maximum allowance length is based on reliability.

Oil trap should be installed per (3-5 meters)10-15ft.

Outdoor connections are ¼” ( Ф 6.35 mm) liquid and 3/8” ( Ф 9.52 mm) gas, therefore a reducer is
provided with all 12/18k indoor sections.
NOTES:
• Do not exceed 50 ft. (15m) per each indoor unit.
• Minimum pipe lenght of 10ft (3m) is required for each indoor unit.
• Oil trap should be installed per (3-5 meters) 10-15 ft., where outdoor unit is located above indoor unit.
• Outdoor connections are 1/4” (
f 6.35 mm) liquid and 3/8” (
f 9.52 mm) gas, therefore a flare nut adapter
is provided with all 12/18k indoor sections.
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