60
FTC
Outdoor unit
TH1
TH2
*1
*1
Water
piping
Refrigerant
piping
Water
OUTLET
side
Refrigerant
LIQUID
side
FTC
Outdoor unit
Packaged type
(with a refrigerant-water HEX inside)
SPLIT type
(without refrigerant-water
HEX inside)
*1 Refrigerant-water HEX
*1 Refrigerant-water HEX
TH1
Water
piping
Water
OUTLET
side
TH2
TH2:
not necessary
PACKAGED type outdoor unit
SPLIT type outdoor unit
Photo.2-4
TB61
TH1
TH2
TB62
Wired remote controller cable
<Thermistor position and necessity>
Outdoor unit
TH1
TH2
TH5
PACKAGED type
Ο
Х
Х
SPLIT type
Ο
Ο
Х
Ο
: Necessary. Connect the thermistor.
Х
: Not necessary. The thermistor is not needed to connect.
2.2. Connecting thermistor cable
Connect the thermistor 2 for the FTC controller.
2.2.1. Connecting the actual fl ow water temp. thermistor
(TH1)
Connect the thermistor for the actual fl ow water temp. to 1 and
2 on the terminal block (TB61) on the FTC controller.
When the thermistor cables are too long, cut them at the appro-
priate length.
Do not bind them in the FTC unit.
<Thermistor position>
Put TH1 on
water
piping (water
outlet
side).
Note: Be sure to attach the TH1 where it detects Flow
temp.(Water oulet side) correctly.
2.2.2. Connecting the pipe temp. thermistor (TH2)
Connect the thermistor for the refrigerant pipe temp. to 3 and 4
on the terminal block (TB61) on the FTC (PCB).
For packaged Outdoor unit : It is not necessary to connect TH2.
For split Outdoor unit : Connect TH2.
When the thermistor cables supplied with FTC are too long, cut them to the appropriate length.
Do not bind them in the FTC unit.
<Thermistor position>
Put the TH2 on
refrigerant
piping (
Liquid
side).
It is better to protect the thermistor with heat insulating materials not to be affected by the ambient temperature.
Note: Be sure to attach the TH2 where it detects Refrigerant piping temp. (Liquid side) correctly.
Caution:
Do not route the thermistor cables together with power cables.
The sensor part of the thermistor should be installed where user must not touch.
(It is separated by the supplementary insulation from where user may touch.)
<Thermistor Characteristic graph> Refer to section 4.2 of I/F.
Содержание Mr.SERVICE PUHZ-HRP100VHA2
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