Lochinvar TTW Series Installation, Commissioning And Maintenance Instructions page 56

Floor standing gas fired condensing circulating type water heater
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SCREEN:
11
C
a
s
c
D e
s
C
a
s
I
n
f
DESCRIPTION "CASCINFO" Screen 11
Shows the number of water heaters connected with the Cascade. The Master/Lead water heater is designated as 0. Slave/Lag water
heaters will be designated 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B. When a "-" is used instead of a number, than that water heater is either not
connected, or in a lockout mode and not available for the Cascade. When an "x" is used instead of a number, than that water heater is
connected, but in lockout mode.
When a "d" is used instead of a number, than that water heater is handling a DHW demand.
When the number is flashing, then that water heater is providing heat to the cascade. When the leading water heater is changed
according to the set priority change time, than that water heater's address will be shown first in the row of numbers.
Example 1: "3 4 5 - - - - - - 0 1 2"
There are six water heaters present and nr. 3 has priority.
Example 2: "3 4 x - - - - - - d 1 2"
There are six water heaters present and nr. 3 has priority. Water heater 0 is heating up an indirect DHW tank. Water heater 5 is present,
but in a lock-out.
SCREEN:
12
C
a
s
c
P o w
D
u a
l
B u
r
SCREEN:
13
M a
x
T
h e
r
G
e n
B
l
o
c
SCREEN:
14
S
i
p h o n
p
N R V
C
o n
t
i
g n
0
0
1 2 3 4 5
6
7 8 9 A
e
r
9 9 9 %
n
e r
:
N o
m
O
p e n
k
C
l
r
e s s
C
l
a
c
t
O
p e n
0 = MASTER, 1 ..... 11 = SLAVES
Displays number, priority and state of cascade water
B
heaters.
9 9 9
% % heat demand of total (cascade) power available (%).
Heat exchanger equipped with two burners: "Yes" or "No".
Status of the maximum thermostat: "Open" or "Closed".
o s
e
d Status of the general blocking contact: "Open" or "Closed".
o s
e
d Status of the siphon pressure switch: "Open" or "Closed".
Status of the non-return valve contact: "Open" or "Closed".
56

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