Daikin Altherma 3 H F - To Connect the Safety Thermostat (Normally Closed Contact)

9 | Electrical installation
Installer reference guide
85
EPGA11~16DAV3(7) + EAVZ16S18+23DA6V(7)+9W
Daikin Altherma 3 H F
4P556075-1A – 2021.09
X1M
X2M
X5M
A8P
A5P
12345
X801M
S6S S7S S8S S9S
a
a Installation of EKRP1AHTA is required.
2 Fix the cable with cable ties to the cable tie mountings.
9.2.10 To connect the safety thermostat (normally closed contact)
Main zone
1 Connect the safety thermostat (normally closed) cable to the appropriate
terminals as shown in the illustration below.
X1M
X2M
X5M
1 2
2 Fix the cable with cable ties to the cable tie mountings.
INFORMATION
Installation of a safety thermostat (field supply) is required for the main zone,
otherwise the unit will NOT operate.
NOTICE
A safety thermostat MUST be installed on the main zone to avoid too high water
temperatures in this zone. The safety thermostat is typically a thermostatically
controlled valve with a normally closed contact. When the water temperature in the
main zone is too high, the contact will open and the user interface will show a 8H‑02
error. ONLY the main pump will stop.
Additional zone
3 Connect the safety thermostat (normally closed) cable to the appropriate
terminals as shown in the illustration below.