Post on 08-Jan-2022
MTAHeat Interface Unit
MODELS
HEATING UP TO(kW)
INDIRECT
38
DIRECT
DHW UP TO(kW)
83
BESARegistered
5yrWarranty*
*subject to Terms & Conditions
MTAThe MTA Heat Interface Unit is designed to work with a centralised boiler plant and district heating schemes, with 7 models ranging from indirect, direct, DHW and heating only modules. The MTA has ultra-compact dimensions with heating loads up to 38kW and DHW loads up to 83kW.
I N T R O D U C T I O N
KIWAApproved
WRASApproved
First fix manifold kit
Indirect inner components
Foam insulation
2
key featuresUltra-compact dimensions
Integral differential pressure control valve
First fix kit with integral isolation & drain valves
Heating return temperature control option
Programmable heating delta T
Bottom connections with optional top
entry kit
Primary modulating control valve
Integral fill device
Keep warm function
Secondary A rated pump
Digital touch control programmer
Range of heat meter options
Front servicing - easy access to components
5 year warranty*
warranty
D I M E N S I O N S & C O M P O N E N T S
dimensions
components
Control Box
Automatic Air Vent
Heat Exchanger, Heating
Modulating Valve
Differential Pressure Sensor
Pressure Sensor
Heat Exchanger, Domestic Water
Heat Meter Sensor
Heat Meter
District Inlet Sensor
District Filter
District Return Sensor
Heating Flow Sensor
Heating Pressure Gauge
Filling Device
3-bar Pressure Relief Valve
Domestic Cold Water Sensor
Domestic Hot Water Sensor
Heating Return Sensor
Hot Water Flow Switch
Pump
Heating Regulation Valve
Hot Water Regulation Valve
Expansion Tank
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
District Inlet
District Return
Heating Flow
Heating Return
Hot Water Outlet
Cold Water Inlet
Cold Water Outlet
Pressure Relief Valve Drain
A
B
C
D
E
F
G
H
MTA Instructions
6
3.2 Components
1 Control Box 13 Heating Flow Sensor 2 Automatic Air Vent 14 Heating Pressure Gauge 3 Heat Exchanger, Heating 15 Filling Device 4 Modulating Valve 16 3-bar Pressure Relief Valve 5 Differential Pressure Sensor 17 Domestic Cold Water Sensor 6 Pressure Sensor 18 Domestic Hot Water Sensor 7 Heat Exchanger, Domestic Water 19 Heating Return Sensor 8 Heat Meter Sensor (HM version only) 20 Hot Water Flow Switch 9 Heat Meter (HM version only) 21 Pump 10 District Inlet Sensor 22 Heating Regulation Valve 11 District Filter 23 Hot Water Regulation Valve 12 District Return Sensor 24 Expansion Tank
A District Inlet E Hot Water Outlet B District Return F Cold Water Inlet C Heating Flow G Cold Water Outlet D Heating Return H Pressure Relief Valve Drain
1
2
3
4
5
6
7
8
9
10
11
12
13
14
24
23
22
21
20
19
18
17
16
15
A B C D E F G H
UNDERSIDE VIEW
FRONT VIEW SIDE VIEW
446
391
335279
224
168
113
57
600
500 262
21
3
A B C D E F G H
T E C H N I C A L D ATA
technical data
Maximum Pressure - District
Maximum Pressure – Heating
Maximum Pressure - ColdFeed / Domestic Hot water
Maximum Pressure Differential
Maximum District Temperature
Maximum District Flow Rate (for ∆p 80kPa dhw)
Maximum District Flow Rate (for ∆p 50kPa dhw)
Minimum Hot Water Flow Rate
Weight Empty - HIU + Backplate
Dimensions HxWxD
Electrical supply (AC)
Power consumption
INDIRECT HEATING & DHWMODEL
TWIN 24-14 TWIN 24-40HEATING ONLY
102.9103
85---
22+4600x500x262
230/50Hz85
40-00HOT WATER ONLY
00-14 00-40
10-
103
8519151.9
17+4600x500x262
230/50Hz85
10-
103
8529231.9
19+4600x500x262
230/50Hz85
DIRECT HEATING & DHWSINGLE 00-14 SINGLE 00-40
62.9103
8519151.9
19+4600x500x262
230/50Hz85
62.9103
8529231.9
21+4600x500x262
230/50Hz85
102.9103
8529231.9
24+4600x500x262
230/50Hz85
102.9103
8519151.9
22+4600x500x262
230/50Hz85
Bar
Bar
Bar
Bar
°C
L/min
L/min
L/min
kg
mm
V
W
general data
Heating temperatures - Low Mode
Heating temperatures - High Mode
Hot Water Temperature
30-4545-80
-
--
40-60
--
40-60
30-4545-8040-60
30-4545-8040-60
30-4545-8040-60
30-4545-8040-60
°C
°C
°C
temperature ranges
District - Inlet & Outlet
Heating system - Inlet & Outlet
Cold Inlet / Outlet & Hot Water Outlet
222222
22-
22
22-
22
222222
222222
222222
222222
mm
mm
mm
water connections
PRIMARYheating performance
85-70°C85-72°C85-74°C70-49°C70-51°C70-53°C60-35°C60-37°C60-40°C
Primary at 0.5 bar diff – 24 PlateSECONDARY
80-60°C80-65°C80-70°C60-40°C60-45°C60-50°C45-30°C45-35°C45-40°C
kW
25221733251725178
PRIMARY FLOW (l/min)
25.525.521.823.318.713.914.310.56.1
PRIMARY ΔP (Kpa)
5050
34.241.127.714.714.97.52.6
MAX SECONDARY FLOW (l/min)
18.521.624242424242424
RESIDUAL PUMP PRESSURE (kPa)
503220202020202020
85-70°C85-72°C85-74°C70-49°C70-51°C70-53°C60-35°C60-37°C60-40°C
Primary at 0.5 bar diff – 40 Plate
80-60°C80-65°C80-70°C60-40°C60-45°C60-50°C45-30°C45-35°C45-40°C
282419382919291910
23.523.523
23.520
15.415.711.87.1
5050
43.350
36.420.523.313.34.5
20.223.228
27.252828282828
503510121010101010
PRIMARYDHW performance
80-39°C80-32°C80-28°C70-43°C70-33°C70-30°C
Primary at 0.5 bar diff – 14 PlateSECONDARY
10-60°C10-50°C10-45°C10-60°C10-50°C10-45°C
kW
41.449.152.427.637.341.1
PRIMARY FLOW (l/min)
151515151515
PRIMARY ΔP (Kpa)
525252525252
MAX SECONDARY FLOW (l/min)
12.017.721.68.013.516.9
SECONDARY ΔP (Kpa)
50.411216522.36870
80-29°C80-22°C80-19°C70-34°C70-25°C70-22°C
Primary at 0.5 bar diff – 40 Plate
10-60°C10-50°C10-45°C10-60°C10-50°C10-45°C
79.483.2 72.957.070.872.9
232118232322
524337525249
22.930.030.016.525.530.0
49.884.484.427.363
84.4
4
MTA Instructions
7
3.3 Schematics
TWIN
models
M O D E L S & S C H E M AT I C S
schematics
Twin Plate Indirect 24-14
Twin Plate Indirect 24-40
Single Plate Direct 00-14
Single Plate Direct 00-40
Hot Water Only 00-14
Hot Water Only 00-40
Heating Only 40-00
Twin plate heat exchangers capable of up to 33kW heating load and 17.7L/min DHW demand (dependant on primary conditions)
MTA24-14ID
MTA24-40ID
MTA14D
MTA40D
MTA14DHW
MTA40DHW
MTA40HTG
DESCRIPTION CODEMODEL
twin
5
Twin plate heat exchangers capable of up to 33kW heating load and 30L/min DHW demand (dependant on primary conditions) Single DHW plate heat exchanger capable of up to 30L/min demand and a direct heating load of 33kW (dependant on primary conditions)Single DHW plate heat exchanger capable of up to 30L/min demand and a direct heating load of 38kW (dependant on primary conditions)Single plate heat exchanger capable of up to 17.7L/min DHW demand (dependant on primary conditions)
Single plate heat exchanger capable of up to 30L/min DHW demand (dependant on primary conditions)
Single plate heat exchanger capable of up to 38kW heating load (dependant on primary conditions)
S C H E M AT I C S
MTA Instructions
8
HOT WATER ONLY
HEATING ONLY
SINGLE single hot water only
heating only
MTA Instructions
8
HOT WATER ONLY
HEATING ONLY
SINGLE
6
B I L L I N G / S E R V I C E / P L A N T
7
billingModutherm would recommend contacting Insite Energy for Pay-As-You-Go (PAYG) and Credit based automated meter reading (AMR) systems. Insite Energy support successful installations on new sites and refurbishment projects, with qualified & experienced M&E trades, field IT teams & on-site project management ensuring fault free metered heat networks prior to resident occupation.
For more information, please contact:
serviceOur MTA heat interface unit has a 2 year parts and labour warranty if commissioned by Modutherm’s trained technicians. We offer extended warranties up to 5 years, providing the unit is serviced anually. For more information, please email enquiries@modutherm.co.uk.
central boiler plantAt Modutherm we can help with the selection of boiler equipment and thermal stores for your heat interface projects. For more information, please email enquiries@modutherm.co.uk.
Genesis FS range Thermal store 200-8000 litres
Emily ListerHead of Business Development07747 214 866emily.lister@insite-energy.co.uk
Modutherm Limited Unit 4 GenesisEndeavour Drive Basildon, SS14 3WF
modutherm.co.ukTel: 0345 521 5666enquiries@modutherm.co.ukA member of the Modular Heating Group. CB/0620