Rinnai RUR98i - Cross Over Mode; Thermal By-pass Valve

KBP Series Manual 43
 Thermal by-pass valve is installed between hot
and cold line on furthest xture (ie. end of
domesc water supply).
 The valve helps regulate ow from the hot water
line to the cold water line allowing for quicker
delivery of hot water.
 No more than 1 thermal by-pass valve should be
installed per water heater.
 Refer to thermal by-pass valve instrucons for
further informaon.
(Recirculaon using cross over mode may result in
combuson icon switching ON and OFF several mes,
this is normal.)

Cross over mode requires a thermal by-pass valve
(included); Refer to Installaon of Plumbing secon
(Cross Over Mode Plumbing Diagram)
* The pump will cycle on at these calculated intervals which are based on the temperature seng, insulaon,
and esmated heat loss in the system. The values for your installaon may vary.

Maximum Pipe Length
(Hot and Cold Water Supply Lines)
Pipe Diameter 3/4" 1/2"
Short Loop 200 50
Long Loop 400 100
Thermal By-pass Valve:
Dip Switch sengs for Cross Over Mode (DIPSW 2)
Operaon
SW 4 in
DIPSW 2
SW 7 in
DIPSW 2
SW 8 in
DIPSW 2
Pump o OFF OFF N/A
COV Long length ON OFF N/A
COV Short length ON ON N/A
Economy N/A N/A OFF
Comfort N/A N/A ON
Thermal By-pass Valve



-


ON 16 8
OFF
Economy Mode 10 10
Comfort Mode 4 4