2.8.11 Wiring single-stage heat pump
with a tankless water heater as a
backup
Required: The pump initiates a call from the tankless water heater heat source as a
backup.
Optional: 'G' for fan-only operation and 'C' for t-stat common.
The reversing valve operation is selectable with the AHU app: the default setting
energizes O/B terminal during cooling.
Required: The outdoor sensor for balance point control of backup heat source is available
separately as IBC outdoor sensor
Required: Sensors for cooling applications are available separately as IBC A/C sensor kit
Figure 46
Single-stage heat pump with a tankless water heater as a backup wiring
Settings in the IBCconnect app
1. Tap
(menu icon), and select
Basic Settings
.
2. Set
Heat Mode
to
Stg 1 HP, Stg 2 Aux
.
3. Set
Cool Mode
to
1 Stage HP
.
4. Set
Boiler Heating
to
Boiler Backup
.
50
Section: Installation
Summary of Contents for AHU 800
Page 44: ...5 Set Tankless Mode to Off 6 Tap SAVE 42 Section Installation...
Page 53: ...5 Set Tankless Mode to On 6 Tap SAVE 51...
Page 55: ...5 Set Tankless Mode to On 6 Tap SAVE 53...
Page 57: ...7 Set FA Damper Open T F to lowest Fresh Air temperature 8 Tap SAVE 55...
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Page 88: ...7 Air handling appliance parts diagram 86 Section Air handling appliance parts diagram...
Page 90: ...88 Section Air handling appliance parts diagram...