INDIRECT
SPECIFICATION
6
LOGIC HIU
-
Installation & Servicing / Users
ON DHW CH FAULT
RESET
21
18
10
RESET
ON DHW CH FAULT
1
2
2
1
0
3
4
bar
20
17
16
3
2
1
19
11
5
13
7
15
4
14
8
22
C
D
2
E
F
1
19
11
5
13
7
15
4
14
22
A B
2
C
D
E
F
9 8
2
21
20
18
10
17
16
3
2
A B
DIMENSIONS
2
Primary
circuit flow
Key to Symbols Schematic -
Connection
A
B
C
D
E
F
Threads
G1”
G1”
G ¾’
G ½”
G ½’
G ¾’
Pitch
A
to
B
65mm
C
to
D
65mm
E
to
F
65mm
Height
630mm
Width
550mm
Depth
(inc cover) 265mm
Weight
19 Kg
3 ITEM COMPONENT REFERENCE: LOGIC HIU INDIRECT 75, LOGIC HIU INDIRECT 50
1 Primary isolation valve (incorporating pressure test points)
2 Drain cock
3 Heat meter spacer piece - replaced by heat meter when fitted
4 Primary filter and heat meter probe pocket
5 Heating circuit control valve
7 Modulating primary control valve (DHW)
8 Plate heat exchanger (DHW)
9 DHW temperature sensor
10 DHW flow switch
11 Electronic control unit
12 Room controller (not supplied)*
13 Plate heat exchanger (space heating)
14 Heating flow temperature sensor
15 Temperature control stat
16 Strainer (heating circuit)
17 Pump safety bypass and DP switch
18 Pump
19 Expansion vessel
20 Safety relief valve - 3 bar
21 Heating return temperature sensor
22 Pressure gauge
23 Filling loop isolation valve*
24 Filling loop double check valve*
25 Filling loop*
* Not shown on Components illustration.
4 TECHNICAL SPECIFICATION
LOGIC HIU INDIRECT 75
LOGIC HIU INDIRECT 50
2
Primary
circuit return
2
Domestic
hot water
outlet
2
Domestic
cold water
inlet
2
Heating
circuit return
2
Heating
circuit flow
Содержание LOGIC HIU Direct HT
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