ADMP / ADM / ADMR
Atmospheric commercial
water heater
ADMP / ADM / ADMR - 40/50/60/80/90/115/135
An extensive range of atmospheric water heaters to suit most
larger hot water systems • Efficient, automatic hot surface igniter
• Removable control column for convenient servicing • Frost-
protection thermostat • Stainless steel burner for natural or LP gas
• Two access covers for comprehensive waterside tank maintenance
• External control connection • Voltage-free contact for general
fault indication • Optional ancillaries: Unvented kits • Destratification
pump kit • Powered anode • Flue fan kit • ADMP Permanent pilot
ignition • Pilot proving kit available • ADM Electronic ignition
• Control, high limit and energy cut-off thermostats provide triple
protection and ensure safe operation • ADMR Electronic ignition
• Flue damper to minimise standing losses • ThermoControl for
easy and flexible control / fault diagnosis • Programmable for
legionella purge cycle
Innovation has a name.
ADMP / ADM / ADMR
Technical specifications
Gas data natural gas 2H (G20)
Input*
kW
42.2
32.3
20
8.5
4.0
56.5
42.8
20
8.5
5.4
66.4
50.2
20
8.5
6.3
82.5
62.4
20
8.5
7.9
98.3 126.6 143.4
42.2
32.3
20
8.5
4.0
56.5
42.8
20
8.5
5.4
66.4
50.2
20
8.5
6.3
82.5
62.4
20
8.5
7.9
98.3 126.6 143.4
Output
kW
74.3
20
8.5
9.4
3.2
180
95.8 109.8
74.3
20
8.5
9.4
3.2
180
95.8 109.8
Inlet pressure
mbar
mbar
m3/h
mm
°C
20
8.5
20
11.3
13.7
3.9
20
8.5
20
11.3
13.7
3.9
Burner pressure
Gas consumption**
Diameter main orifice
Max. flue gas temperature
Flue gas discharge
12.1
3.2
12.1
3.2
3.2
180
3.2
200
3.1
200
2.95
180
3.2
180
3.2
200
3.1
200
2.95
180
200
185
200
185
kg/h
121.7 130.2 199.4 190.1 329.0 253.1 302.6 121.7 130.2 199.4 190.1 329.0 253.1 302.6
Gas data butane 3+ (G30)
Input*
Output
Inlet pressure
Burner pressure
Gas consumption**
Diameter main orifice
Max. flue gas temperature
Flue gas discharge
kW
kW
41.6
32.6
30
55.3
42.8
30
68.2
52.8
30
80.7
62.6
30
96.1 123.5 138.4
41.6
32.6
30
55.3
42.8
30
68.2
52.8
30
80.7
62.6
30
96.1 123.5 138.4
74.5
30
95.8 108.5
74.5
30
95.8 108.5
mbar
mbar
kg/h
mm
°C
30
-
30
-
30
-
30
-
-
-
-
-
-
-
-
-
-
-
3.0
1.7
180
4.0
1.7
200
5.0
1.7
200
5.9
1.5
180
7.0
1.7
180
9.0
1.7
200
10.1
2.25
185
3.0
1.7
180
4.0
1.7
200
5.0
1.7
200
5.9
1.5
180
7.0
1.7
180
9.0
1.7
200
10.1
2.25
185
kg/h
125.9 129.4 183.9 205.3 344.9 255.6 319.6 125.9 129.4 183.9 205.3 344.9 255.6 319.6
Gas data propane 3+ (G31)
Input*
Output
Inlet pressure
Burner pressure
Gas consumption**
Diameter main orifice
Max. flue gas temperature
Flue gas discharge
kW
kW
38.4
30.0
37
51.1
39.5
37
63.3
48.9
37
77.7
60.1
37
89.6 113.0 130.1
38.4
30.0
37
51.1
39.5
37
63.3
48.9
37
77.7
60.1
37
89.6 113.0 130.1
69.2
37
87.4 101.7
69.2
37
87.4 101.7
mbar
mbar
kg/h
mm
°C
37
-
37
-
37
-
37
-
-
-
-
-
-
-
-
-
-
-
2.7
1.7
180
3.7
1.7
200
4.5
1.7
200
5.6
1.5
180
6.4
1.7
180
8.1
1.7
200
9.3
2.25
185
2.7
1.7
180
3.7
1.7
200
4.5
1.7
200
5.6
1.5
180
6.4
1.7
180
8.1
1.7
200
9.3
2.25
185
kg/h
115.2 119.9 177.5 187.4 187.4 239.4 297.1 115.2 119.9 177.5 187.4 187.4 239.4 297.1
Draw-off capacity
Storage capacity
Max. temperature setting
30 min. ∆T=44°C
l
°C
l
309
73
621
357
73
766
298
73
767
335
73
914
278
73
253
73
252
73
309
80
621
357
80
766
298
80
767
335
80
914
278
80
253
80
252
80
957 1118 1240
957 1118 1240
60 min. ∆T=44°C
l
937 1183 1258 1524 1684 2054 2313
937 1183 1258 1524 1684 2054 2313
90 min. ∆T=44°C
120 min. ∆T=44°C
l
l
1253 1601 1749 2134 2410 2990 3385 1253 1601 1749 2134 2410 2990 3385
1568 2019 2240 2744 3137 3926 4458 1568 2019 2240 2744 3137 3926 4458
Continuous ∆T=44°C
Heating-up time ∆T=44°C
30 min. ∆T=50°C
l/h
min.
l
631
29
547
836
26
674
982 1220 1453 1872 2145
631
29
547
836
26
674
982 1220 1453 1872 2145
18
16
11
8
7
18
16
11
8
7
675
805
842
984 1092
675
805
842
984 1092
60 min. ∆T=50°C
l
824 1041 1107 1341 1482 1808 2035
824 1041 1107 1341 1482 1808 2035
90 min. ∆T=50°C
120 min. ∆T=50°C
l
l
1102 1409 1539 1878 2121 2631 2979 1102 1409 1539 1878 2121 2631 2979
1380 1777 1971 2415 2760 3455 3923 1380 1777 1971 2415 2760 3455 3923
Continuous ∆T=50°C
Heating-up time ∆T=50°C
30 min. ∆T=55°C
l/h
min.
l
l
556
33
497
749
735
29
612
864 1073 1279 1647 1888
556
33
497
749
735
29
612
864 1073 1279 1647 1888
21
19
13
9
8
21
19
13
9
8
614
732
766
895
992
614
732
766
895
992
60 min. ∆T=55°C
947 1006 1219 1347 1643 1850
947 1006 1219 1347 1643 1850
90 min. ∆T=55°C
120 min. ∆T=55°C
l
l
1002 1281 1399 1707 1928 2392 2708 1002 1281 1399 1707 1928 2392 2708
1255 1615 1792 2195 2509 3141 3566 1255 1615 1792 2195 2509 3141 3566
Continuous ∆T=55°C
Heating-up time ∆T=55°C
l/h
min.
505
37
669
32
785
23
976 1162 1497 1716
505
37
669
32
785
23
976 1162 1497 1716
21
14
10
9
21
14
10
9
Electrical data
Power consumption
Power supply
W
VAC/Hz
30
30
30
30
30
30
60
50
50
50
50
50
50
80
230 (-15 / +10%) / 50
230 (-15 / +10%) / 50 (+/- 1 Hz)
General
Anodes
-
2
2
2
3
8
573
3
4
4
2
2
2
3
8
573
3
4
4
Maximum working pressure
Maximum weight
bar
kg
504
578
507
522
523
581
504
578
507
522
523
581
Shipping data
Weight empty
Weight incl. packaging
Width packaging
Height packaging
Depth packaging
kg
kg
mm
mm
mm
195
214
780
221
242
780
209
230
780
238
259
780
244
265
780
270
291
780
329
350
910
195
214
780
221
242
780
209
230
780
238
259
780
244
265
780
270
291
780
329
350
910
1930 2140 1930 2140 1975 2045 2050 1930 2140 1930 2140 1975 2045 2050
870 870 870 870 870 870 910 870 870 870 870 870 870 910
*
Gas data on gross value
** Gas consumption at 15°C and 1013.25 mbar
ADMP / ADM / ADMR
Dimensions ADM / ADMR
A
B
D
E
1900 2100 1900 2100 2000 2085 2085
1760 1960 1760 1960 1795 1870 1870
710
800
710
800
710
800
710
800
710
800
710
800
710
800
F
1100 1100 1100 1100 1105 1105 1105
G
H
J
150
660
150
660
180
660
180
660
225
675
225
675
225
675
1840 2040 1840 2040 1935 2010 2010
K
M
N
P
R
S
400
565
400
565
400
565
400
565
400
575
400
650
205
650
1605 1810 1605 1810 1640 1715 1715
730
500
730
515
730
500
730
515
740
525
825
600
855
595
1550 1760 1550 1760 1595 1660 1660
1
2
3
4
5
Cold water (external)
Hot water (internal)
Gas control (internal)
Tank drain valve (internal)
T&P valve (internal)
R11/2
Rp11/2
Rp3/4 (ADM(R) 135 = Rp1)
Rp11/2
1-11.5 NPT (40-80)
Rp11/2 (90-135)
Ø100
6
Cleaning and inspection opening
Dimensions in mm. All ADM and ADMR water heaters receive
a three years warranty on the tank and one year on parts.
ADMP / ADM / ADMR
Installation diagrams ADM / ADMR
1
3
4
5
6
7
9
Pressure reducing valve
T&P valve
Vented
Stop valve
Non-return valve
Circulation pump
Destratification pump
Drain valve
10 Gas cock
11 Isolating valve
12 Temperature gauge
14 Hot water outlets
15 Expansion relief valve
16 Expansion vessel
17 Three way valve
18 Water tank
19 Float valve
A
B
C
D
E
Cold water
Hot water
Return circulation
Gas supply
Overflow pipe
Expansion vent pipe
H
Unvented
A.O. Smith unvented system kits utilise combination valves.
An ADM/ADMP or ADMR water heater should be installed
in accordance with local standards and ventilation require-
ments (category B11BS).
Further installation and connection details can be found in
the Installation & Commissioning Manual.
ADMP / ADM / ADMR
Electrical diagram ADM
TERMINAL STRIP CONNECTIONS
Earth
N
Neutral
L1
L2
Phase input of controller
Phase input of flue gas
thermostat
L3
Phase output of flue gas
thermostat
COMPONENTS
A
B
C
D
E
Two-terminal main switch
Flue gas thermostat
Indicator LED “Error”
Indicator LED “Running”
“RESET” button
F
Burner control
G
H
J
K
L
M
N
O
P
Control thermostat
Frost thermostat
0/1 switch of controller
Safety thermostat
High-limit thermostat
Extra error sensor
Gas control
Glow igniter
Ionisation rod
CONNECTIONS ON BURNER CONTROL
N1
Neutral
Earth
L’
L”
Phase input of burner control
Phase output to safety circuit and
thermostat circuit
TH
Phase input of thermostat circuit
GV1 Phase output to gas control
MAX Phase input of safety thermostat
LG
I
NO
Phase output to glow igniter
Ionisation signal detection
“Normally open” port of the
extra error sensor
P
NC
Phase input of extra error sensor
“Normally closed” port of the
extra error sensor
F1
Fuse
ADMP / ADM / ADMR
Electrical diagram ADMR
TERMINAL STRIP CONNECTIONS
Earth
N
Neutral
L1
L2
Phase input of controller
Phase input of program-
controlled pump
L3
L4
L5
Phase input of continuous pump
Phase input of extra error signal
Phase input of flue damper
motor
L6
L7
L8
Phase output of flue damper
motor (feedback)
Phase input of isolating
transformer (primary side)
Phase output of isolating
transformer (secondary side)
COMPONENTS
A
B
C
D
E
Controller
Gas control
Glow igniter
Ionisation rod
Extra error signal
Double-pole mains switch
Program-controlled pump
Continuous pump
Flue damper
F
G
H
J
K
L
M
N
O
P
Isolating transformer
I/0 switch control
Display/Flat cable
Extra ON mode switch
Connector for the flue gas sensor
Temperature sensor
(T2 - bottom of tank)
Temperature sensor
(T1 - top of tank)
Selection resistor
Q
R
CONTROLLER CONNECTIONS
J1
J2
Connector for display to controller
Connector for power supply to
controller
J19 Connector for extra error signal
and power supply to flue damper
J20 Connector for gas control
J21 Connector for program-
controlled pump
J29 Connector for feedback from flue
damper
JP2 Connector for ionisation rod and
glow igniter
JP3 Connector for temperature
sensor T2
JP4 Connector for flue gas sensor
JP5 Connector for temperature
sensor T1
JP6 Connector for selection resistor
and feedback from micro-switch
JP8 Connector for extra ON mode
switch
F1
F2
Fuse
Fuse
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