C. adjusting the set point – HTP PHR199-55C User Manual
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LP- 325 REV. 3.21.14
3. Follower Appliances
NOTE: READ THE NOTES BELOW BEFORE PROGRAMMING FOLLOWER APPLIANCES:
The appliance addressed as 1 will share its alarm output with the Master Appliance.
If one of the follower appliances has an indirect fired water appliance connected to it, the address of this appliance must be 2
or greater.
It is recommended but not necessary to address appliances in the order that
they are wired.
No two appliances can have the same address.
It is not required to use all consecutive address numbers. Example: In a 2
appliance system with an indirect tank connected to the follower, the follower
address could be 2 (address 1 not used).
4. To program follower appliance(s):
a. Make sure there is no demand for heat being supplied to the Master
Appliance.
b. Apply power to the follower appliance you are working on.
c. Enter the installer Menu following instructions in Part 10 of this manual.
d. Set parameter 15 to 1 for the desired appliance address after reading the
notes above.
e. Set parameter 23 to 1 for cascade operation.
f. Exit the installer menu.
C. ADJUSTING THE SET POINT
Before you change the temperature from the factory setting of 180
o
, make sure that
none of the thermostats are calling for heat. The controller will not memorize a program
setting while in a heating cycle.
To access and scroll through additional setting options, press
{S3}
.
1. Press
{S3}
once to access |C|, Appliance Temperature Set Point. To adjust the
temperature of the appliance, simply press in the
{S3}
key for three seconds until you
see a flashing (C) then an alternating value of (180). This number is the factory set
point of 180
o
F.
To change the temperature, push either
{S1}
or
{S2}
on the display. The
{S1}
button decreases and
{S2}
increases the set point
temperature. The set point temperature can be set as low as 50
o
F or as high 185
o
F. Changes are directly stored and the display returns
to normal mode after one minute.
2. Press
{S3}
a second time. The appliance will now display |Ch| and an alternating value of 15. This is the Appliance Differential Set
Point. This function allows the installer to adjust the activation of the burner based on the differential temperature setting of the
appliance. The burner will not start until the outlet water temperature reaches a temperature equal to the setting for the appliance,
minus the differential.
EXAMPLE: The appliance is set to heat at 180°F and the differential is set at 15°F. The burner will not start until the outlet temperature
of the system reaches 164°F (180°
– 15° = 165°).
To adjust, press either
(S1}
(Decrease Value) or
{S2}
(Increase Value). Ranges 5° F to 30° F.
3. NOTE: Only in use if using an indirect storage tank with a PIONEER (*NOT IN USE ON VERSA-FLAME). Press
{S3}
a third time
and you will see the Indirect Temperature Set Point |de| and an alternating value of 119. Range 95
– 180. To adjust, press either
{S1}
(Decrease Value) or
{S2}
(Increase Value).
4. PIONEER: Press
{S3}
a fourth time to access |dh|, the Indirect Differential Set Point. This function allows the installer to adjust the
activation of the DHW call based on the differential temperature setting for the indirect tank. The pump will not start until the indirect
water temperature reaches a temperature equal to the setting for the indirect, minus the indirect differential. Range 1
– 18. Default 7.
(*NOT IN USE ON VERSA-FLAME.)
EXAMPLE: The indirect is set to heat at 130
o
F and the differential is set to 10
o
F. The DHW pump will not start until the outlet
temperature of the system reaches 119
o
F (130
o
– 10
o
= 120
o
).
Versa-Flame DHW Temperature Adjustment
To adjust the DHW temperature on the Versa-Flame, you will need to manually adjust the thermostatic mixing valve. See Part 4,
Section N of this manual for detailed instructions.