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Adjustments
Adjustable Delay-on-Make and Delay-on-Break Timer
The potentiometer is used to select delay-on-break time
from 30 seconds to 5 minutes. Delay-on-make (DOM)
timing on power up and after power interruptions is
equal to 2 minutes plus 10% of delay-on-break (DOB)
setting:
0.5 minute (30 seconds) DOB = 123 second DOM
1.0 minute (60 seconds) DOB = 126 second DOM
2.0 minute (120 seconds) DOB = 132 second DOM
3.0 minute (180 seconds) DOB = 138 second DOM
4.0 minute (240 seconds) DOB = 144 second DOM
5.0 minute (300 seconds) DOB = 150 second DOM
During routine operation of the unit with no power
interruptions, the compressor will operate on demand
with no delay.
Terminal
1
Compressor on Output Signal from Jade to MV
2
24VAC HOT from Terminal 2 Connected to Unit Transformer
3
24VAC COMMON from Unit Transformer to MV
4
Unit Compressor Operation
5
Close Damper Input (Close Blade 100%)
6
Electric Heat On Operation, Stage 1 and 2
7
1st Stage Cooling Input, 1st Stage Cooling Signal to Jade
8
2nd Stage Cooling Input, 2nd Stage Cooling Signal to Jade
9
Blower Operation (Indoor Blower On)
10
Filter Switch Normally Closed Dry Contacts
11
Filter Switch Normally Closed Dry Contacts
12
Blade Switch Delay Relay Normally Closed Dry Contacts
13
Blade Switch Delay Relay Normally Closed Dry Contacts
14
Occupied Signal Input, Econ Emergency Open (Open Blade 100%)
15
Econ Open Output (6V HOT, 24V HOT after Blade Open 100% and delay)
16
Alarm Relay Common Dry Contact
17
Alarm Relay Normally Open Dry Contact
18
Alarm Relay Normally Closed Dry Contact
24VAC HOT to Terminal 2 from Unit Transformer Through Smoke Alarm Jumper
19
Wire*
20
2nd Stage Heating On Operated Through Jumper to Terminal 6
Blade Switch Terminal 24V HOT When Blade is Open, Sends Signal from Switch
21
to Delay Relay
* Replace jumper wire with smoke alarm connections to interrupt 24VAC unit power if smoke alarm is used in shelter. Jumper can also
be removed to break 24VAC power to unit.
Typical Settings for Dual Unit Installation:
Unit 1: DOB set at 2 minutes and DOM is 132 seconds
Unit 2: DOB set at 4 minutes and DOM is 144 seconds
PRESSURE SERVICE PORTS
High and low pressure service ports are installed on
all units so that the system operating pressures can
be observed. A pressure table can be found on page
19 covering all models. It is imperative to match the
correct pressure table to the unit by model number.
This unit employs high-flow Coremax valves instead of
the typical Shrader type valves.
WARNING! Do NOT use a Schrader valve core removal
tool with these valves. Use of such a tool could result
in eye injuries or refrigerant burns!
To change a Coremax valve without first removing the
refrigerant, a special tool is required which can be
obtained at www.fastestinc.com/en/SCCA07H. See the
replacement parts manual for replacement core part
numbers.
TABLE 1
Sequence of Operation
Description
Series "2"
Use
Reference
Economizer Only
24V HOT
24V COMMON
Cooling Operation
Economizer Only
Heating Operation
"W1"
Economizer Only
"Y1"
Economizer Only
"Y2"
Blower Operation
Alarm Signal
Alarm Signal
Economizer Only
Economizer Only
Economizer Only
Economizer Only
"10"
Comp Alarm Signal
Comp Alarm Signal
Comp Alarm Signal
24V HOT
"RT"
Heating Operation,
"W2'
2nd Stage
Economizer Only
Manual 2100-639A
Page
17 of 28
"A"
"R"
"C"
"Y"
"F"
"G"
"4"
"5"
"8"
"9"
"E"
"3"
"2"
"1"
"7"
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