Fisher FHIF-WHS-120CE3, Service Manual

Page: 70 / 75

R32 ATW Service Manual
68
Press query button to enter spot check. Press up and down button to turn pages.
No. Display content Remarks
1 AC side setting water temperature Ts1
2 Domestic hot water setting temperature Ts2
When hydronic module is without
DHW function, it will show 0.
3 Water inlet temperature of heat exchanger Tw_in
4 Water outlet temperature of heat exchanger Tw_out
5 Water outlet temperature of hydronic module T1
6
Ambient temperature T4
7 Temperature detected by temperature probe of wired controller T6
8
Water tank temperature T7
When hydronic module is without
DHW function, it will show 0.
9 Capacity of hydronic module Capacity (HP) = value * 0.1
10 Operating capacity demand of hydronic module Capacity (HP) = value * 0.1
11 Water pump gear
14.2 Error code and troubleshooting
14.2.1 Outdoor unit
Code Failure or protection Failure cause and corrective action
E1 Three-phase supply phase-sequence
fault
(only for 3Ph unit)
1. Check the power supply cables to avoid phase loss
2. Check the power supply cables sequence; change any two
cables sequence of the three power supply.
E2 Communication failure between
indoor unit and outdoor unit
Cause: Communication interrupted f or 2mins or more
between ODU and IDU
1. Wire doesn’t connect between IDU and ODU. Connect the
wire.